Download PDF Wi-Fi Toys 15 Cool Wireless Projects for Home, Office, and Entertainment by Mike Outmesguine

Sinopsis

Internet without wires. Think about that for a minute. All of the entertainment, utility, and performance of the Internet yours, without being tied to a desk.Without even being tied to the home or office. Internet without wires...anywhere! Wireless is a growing revolution changing the way people communicate and share ideas. From cell phones to PDAs to mobile computers, wireless access puts you instantly in touch with millions of other people around the planet.Wi-Fi, in particular, is changing how people access the Internet from laptops and PDAs. It’s emerging as an alternative for cellular service, and it may even replace regular telephone lines as voice conversations begin to be re-routed over Wi-Fi networks in larger numbers.
 

Wi-Fi is that subset of wireless communications designed for high-speed Internet access. Sometimes simply referred to as “wireless,” or known by its many-lettered specification IEEE 802.11b, a, g, and so on,Wi-Fi allows compatible devices to connect without cables or physical connections. With speeds far in excess of most cable modem, DSL, and even T1 service,Wi-Fi is rapidly becoming the standard for Internet access. The store shelves are flooded with Wi-Fi access points, clients, music players, network hubs, and printers, and myriad other consumer devices sport Wi-Fi access.Take the Xbox, Playstation 2, and TiVo—these all have Wi-Fi ability now.
 

Remember when people were saying how everything in the house will eventually be wired? How anything from a toaster or refrigerator to a stereo system or television would have Internet access? Well, it’s been some time coming, but with wireless in the home, these are now possibilities. Refrigerators are being sold with Wi-Fi connections, and several products will now connect your digital media from your computer to your television over Wi-Fi. I wonder when my toaster will send me a wireless e-mail when the toast pops?
 

Wireless is awesome, but it is also somewhat limited. The hardware you can buy in the store is mass-marketed and mass-produced. So it doesn’t have that extra edge that power users are looking for. Extra edges like longer range, sharing with friends, saying no to power lines, and finding every access point on your street can be yours with the projects in this book.
 

Wi-Fi Toys was written to help you take wireless to the next level. Go beyond the user manual and build your own projects using this book as your guide.
 

Few things are more liberating than a Wi-Fi connection.

Content

1. Building Antennas
2. Building Your Own Wi-Fi Antenna Cable
3. Building a Classic Paperclip Antenna
4. Building a Directional Tin Can Antenna
5. Modifying Your Access Point with a High-Gain Antenna
6. War Driving—Wireless Network Discovery and Visualization
7. Gearing Up for War Driving
8. War Driving with NetStumbler
9. Mapping Your War Driving Results
10. Playing with Access Points
11. Build Your Own Outdoor Access Point
12. Building a Solar-Powered Wireless Repeater
13. Creating a Free Wireless Hotspot
14. Playing Access Point Games
15. Just for Fun
16. Wi-Fi Your TiVo
17. Create a Long-Distance Wi-Fi Link
18. Deploy a Car-to-Car Wireless Video Link
19. Making a Dynamic Wireless Digital Picture Frame

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Download PDFCCIE Cisco Wireless Exam (350-050) Quick Reference by Roger Nobel

Sinopsis

Radio frequencies are high-frequency, alternating current (AC) signals that are radiated into the air through an antenna, creating radio waves. Radio waves propagate away from the antenna in a straight line in all directions at once, just like light rays from a bulb. More light bulbs spread around the room will provide better overall lighting. This translates into a stronger average signal for mobile clients. When radio waves hit a wall, door, or any obstruction, there is attenuation of the signal, which weakens the signal and can reduce throughput. The signal can also be refl ected or refracted.

WLAN devices work in a frequency range (wavebands) that belongs to the industrial, scientifi c, and medical (ISM) radio bands. The ISM band was originally reserved internationally for the use of RF electromagnetic fi elds for industrial, scientifi c, and medical purposes other than communications. In general, communications equipment must accept any interference generated by ISM equipment.

Content

1. Planning and Designing 802.11 Wireless Technologies
2. Configure and Troubleshoot L2/L3 Network Infrastructure to Support WLANs
3. Configure and Troubleshoot Infrastructure Application Services
4. Configure and Troubleshoot Autonomous Deployment Mode
5. Configure and Troubleshoot the Cisco Unified Wireless Deployment Model
6. Configure and Troubleshoot WCS
7. Configure and Troubleshoot WLAN Services

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Download PDF CWAP® Certified Wireless Analysis Professional Official Study Guide by David A. Westcott

Sinopsis

If you have ever prepared to take a certifi cation test for a technology that you are unfamiliar with, you know that you are not only studying to learn a different technology but probably also learning about an industry that you are unfamiliar with. Read on, and we will tell you about CWNP.
 

CWNP is an abbreviation for Certified Wireless Network Professional. There is no CWNP test. The CWNP program develops courseware and certifi cation exams for wireless LAN technologies in the computer networking industry. The CWNP certifi cation program is a vendor-neutral program.

The objective of CWNP is to certify people on wireless networking, not on a specific vendor’s product. Yes, at times the authors of this book and the creators of the certifi cation will talk about, demonstrate, or even teach how to use a specifi c product; however, the  goal is the overall understanding of wireless, not the product itself. If you learned to drive a car, you had to physically sit and practice in one. When you think back and reminisce, you probably do not tell someone you learned to drive a Ford; you probably say you learned to drive using a Ford.
 

There are seven wireless certifications offered by the CWNP program:
 

CWTS: Certified Wireless Technology Specialist The CWTS certification is an entry-level enterprise WLAN certification and a recommended prerequisite for the CWNA certification. This certification is geared specifically toward WLAN sales professionals, project managers, networkers, and support staff who are new to enterprise Wi-Fi.
 

CWNA: Certified Wireless Network Administrator The CWNA certification is a foundation-level Wi-Fi certification; however, it is not considered an entry-level technology certification. Individuals taking this exam (exam PW0-104) typically have a solid grasp on network basics such as the OSI model, IP addressing, PC hardware, and network operating systems. Many candidates already hold other industry-recognized certifications, such as the CompTIA Network+ or Cisco CCNA, and are looking for the CWNA certification to enhance or complement existing skills.
 

CWSP: Certified Wireless Security Professional The CWSP certification exam (PW0-200) is focused on standards-based wireless security protocols, security policy, and secure wireless network design. This certification introduces candidates to many of the technologies and techniques that intruders use to compromise wireless networks and that administrators use to protect wireless networks. With recent advances in wireless security, WLANs can be secured beyond their wired counterparts.
 

CWDP: Certified Wireless Design Professional The CWDP certification exam (PW0-250) is a professional-level career certification for networkers who are already CWNA certified and have a thorough understanding of RF technologies and applications of 802.11 networks. This certification prepares WLAN professionals to properly design wireless LANs for different applications to perform optimally in different environments.
 

CWAP: Certified Wireless Analysis Professional The CWAP certification exam (PW0-270) is a professional-level career certification for networkers who are already CWNA certified and have a thorough understanding of RF technologies and applications of 802.11 networks. This certification prepares WLAN professionals to be able to perform, interpret, and understand wireless packet and spectrum analysis.
 

CWNE: Certified Wireless Network Expert The CWNE certification is the highest-level certification in the CWNP program. By successfully completing the CWNE requirements, you will have demonstrated that you have the most advanced skills available in today’s wireless LAN market. The CWNE exam (PW0-300) focuses on advanced WLAN analysis, design, troubleshooting, QoS mechanisms, spectrum management, and extensive knowledge of the IEEE 802.11 standard as amended.

Content

1.  802.11 Overview
2. 802.11 Physical (PHY) Layer Frame Format
3. 802.11 MAC Sublayer Frame Format
4. 802.11 Management Frames
5. 802.11 Control Frames
6. Data Frames
7. 802.11 Medium Contention
8. Power Management
9. 802.11 Security
10. 802.11n HT Analysis
11. Spectrum Analysis
12. Protocol Analyzer Operation and Troubleshooting

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Download PDF CWSP Certified Wireless Security Professional Official Study Guide by David Coleman

Sinopsis

If you have purchased this book or if you are even thinking about purchasing this book, you probably have some interest in taking the CWSP ® (Certifi ed Wireless Security Professional) certification exam or in learning what the CWSP certifi cation exam is about. The authors would like to congratulate you on this fi rst step, and we hope that our book can help you on your journey. Wireless local area networking (WLAN) is currently one of the hottest technologies on the market. Security is an important and mandatory aspect of 802.11 wireless technology. As with many fast - growing technologies, the demand for knowledgeable people is often greater than the supply. The CWSP certifi cation is one way to prove that you have the knowledge and skills to secure 802.11 wireless networks successfully. This study guide is written with that goal in mind.
 

This book is designed to teach you about WLAN security so that you have the knowledge needed not only to pass the CWSP certifi cation test, but also to be able to design, install, and support wireless networks. We have included review questions at the end of each chapter to help you test your knowledge and prepare for the exam. We have also included labs, white papers, and presentations on the CD to facilitate your learning further.
 

Before we tell you about the certifi cation process and its requirements, we must mention that this information may have changed by the time you are taking your test. We recommend that you visit www.cwnp.com as you prepare to study for your test to check out the current objectives and requirements.

If you have ever prepared to take a certifi cation test for a technology with which you are unfamiliar, you know that you are not only studying to learn a different technology, but you are also probably learning about an industry with which you are unfamiliar. Read on and we will tell you about the CWNP Program. CWNP is an abbreviation for Certifi ed Wireless Network Professional . There is no CWNP test. The CWNP Program develops courseware and certifi cation exams for wireless LAN technologies in the computer networking industry. The CWNP certifi cation program is a vendor - neutral program.
 

The objective of the CWNP Program is to certify people on wireless networking, not on a specific vendor’s product. Yes, at times the authors of this book and the creators of the certifi cation will talk about, or even demonstrate how to use a specifi c product; however,  the goal is the overall understanding of wireless technology, not the product itself. If you learned to drive a car, you physically had to sit and practice in one. When you think back and reminisce, you probably do not tell anyone that you learned to drive a Ford; you probably say you learned to drive using a Ford.
 

There are five wireless certifi cations offered by the CWNP Program: CWTS ™ : 

Certified Wireless Technology Specialist The CWTS certifi cation is the latest certification from the CWNP Program. CWTS is an entry - level enterprise WLAN certifi cation, and it is a recommended prerequisite for the CWNA certifi cation. This certifi cation is geared specifi cally toward both WLAN sales and support staff for the enterprise WLAN industry. The CWTS certifi cation exam (PW0 - 070) verifi es that sales and support staffs are specialists in WLAN technology and have all the fundamental knowledge, tools, and terminology to sell and support WLAN technologies more effectively.
 

CWNA ® : Certified Wireless Network Administrator The CWNA certification is a foundation - level Wi - Fi certifi cation; however, it is not considered an “ entry - level ” technology certifi cation. Individuals taking the CWNA exam (PW0 - 104) typically have a solid grasp of network basics such as the OSI model, IP addressing, PC hardware, and network operating systems. Many candidates already hold other industry - recognized certifications, such as CompTIA Network+ or Cisco CCNA, and are looking to the CWNA certification to enhance or complement existing skills.
 

CWSP ® : Certified Wireless Security Professional The CWSP certifi cation exam (PW0 - 204) is focused on standards - based wireless security protocols, security policy, and secure wireless network design. This certifi cation introduces candidates to many of the technologies and techniques that intruders use to compromise wireless networks and administrators use to protect wireless networks. With recent advances in wireless security, WLANs can be secured beyond their wired counterparts.
 

CWNE ® : Certified Wireless Network Expert The CWNE certification (PW0 - 300) is the highest - level certification in the CWNP Program. By successfully completing the CWNE requirements, you will have demonstrated that you have the most advanced skills available in today ’ s wireless LAN market. The CWNE exam (PW0 - 300) focuses on advanced WLAN analysis, design, troubleshooting, quality of service (QoS) mechanisms, spectrum management, and extensive knowledge of the IEEE 802.11 standard as amended.

CWNT ® : Certified Wireless Network Trainer Certifi ed Wireless Network Trainers are qualifi ed instructors certifi ed by the CWNP Program to deliver CWNP training courses to IT professionals. CWNTs are technical and instructional experts in wireless technologies, products, and solutions. To ensure a superior learning experience for our customers, CWNP Education Partners are required to use CWNTs when delivering training using Official CWNP Courseware.

Content

1. WLAN Security Overview
2. Legacy 802.11 Security
3. Encryption Ciphers and Methods
4. Enterprise 802.11 Layer 2 Authentication Methods
5. 802.11 Layer 2 Dynamic Encryption Key Generation
6. SOHO 802.11 Security
7. 802.11 Fast Secure Roaming
8. Wireless Security Risks
9. Wireless LAN Security Auditing
10. Wireless Security Monitoring
11. VPNs, Remote Access, and Guest Access Services
12. WLAN Security Infrastructure
13. Wireless Security Policies

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Download PDF CWNA® Certified Wireless Network Administrator Official Study Guide Third Edition by David D. Coleman

Sinopsis

If you have purchased this book or if you are thinking about purchasing this book, you probably have some interest in taking the CWNA® (Certified Wireless Network Administrator) certifi cation exam or in learning more about what the CWNA certification exam is about. We would like to congratulate you on this fi rst step, and we hope that our book can help you on your journey. Wireless networking is one of the hottest technologies on the market. As with many fast-growing technologies, the demand for knowledgeable people is often greater than the supply. The CWNA certifi cation is one way to prove that you have the knowledge and skills to support this growing industry. This Study Guide was written with that goal in mind.

This book was written to help teach you about wireless networking so that you have the knowledge needed not only to pass the CWNA certifi cation test, but also to be able to design, install, and support wireless networks. We have included review questions at the end of each chapter to help you test your knowledge and prepare for the test. We have also included labs, white papers, videos, and presentations on the book’s website (www.sybex.com/go/cwna3e) to further facilitate your learning.

Before we tell you about the certifi cation process and requirements, we must mention that this information may have changed by the time you are taking your test. We recommend that you visit www.cwnp.com as you prepare to study for your test to determine what the current objectives and requirements are.

If you have ever prepared to take a certifi cation test for a technology that you are unfamiliar with, you know that you are not only studying to learn a different technology, but probably also learning about an industry that you are unfamiliar with. Read on and we will tell you about CWNP.

CWNP is an abbreviation for Certifi ed Wireless Network Professional. There is no CWNP test. The CWNP program develops courseware and certifi cation exams for wireless LAN technologies in the computer networking industry. The CWNP certifi cation program is a vendor-neutral program.

The objective of CWNP is to certify people on wireless networking, not on a specifi c vendor’s product. Yes, at times the authors of this book and the creators of the certifi cation will talk about, demonstrate, or even teach how to use a specifi c product; however, the goal is the overall understanding of wireless, not the product itself. If you learned to drive a car, you had to physically sit and practice in one. When you think back and reminisce, you probably do not tell someone you learned to drive a Ford; you probably say you learned to drive using a Ford.

There are seven wireless certifi cations offered by the CWNP program: CWTS: Certified Wireless Technology Specialist CWTS is an entry-level enterprise WLAN certifi cation and a recommended prerequisite for the CWNA certifi cation. This certifi cation is geared specifi cally toward both WLAN sales and support staff for the enterprise WLAN industry. The CWTS certifi cation verifi es that sales and support staff are specialists in WLAN technology and have all the fundamental knowledge, tools, and terminology
to more effectively sell and support WLAN technologies.

CWNA: Certified Wireless Network Administrator The CWNA certifi cation is a foundation-level Wi-Fi certifi cation; however, it is not considered an entry-level technology certifi cation. Individuals taking this exam (exam PW0-105) typically have a solid grasp on network basics such as the OSI model, IP addressing, PC hardware, and network operating systems. Many candidates already hold other industry-recognized certifi cations, such as the CompTIA Network+ or Cisco CCNA, and are looking for the CWNA certifi cation to enhance or complement existing skills.

CWSP: Certified Wireless Security Professional The CWSP certifi cation exam (PW0-204) is focused on standards-based wireless security protocols, security policy, and secure wireless network design. This certifi cation introduces candidates to many of the technologies and techniques that intruders use to compromise wireless networks and that administrators use to protect wireless networks. With recent advances in wireless security, WLANs can be secured beyond their wired counterparts.

CWDP: Certified Wireless Design Professional The CWDP certifi cation exam (PW0-250) is a professional-level career certifi cation for networkers who are already CWNA certifi ed and have a thorough understanding of RF technologies and applications of 802.11 networks. This certification prepares WLAN professionals to properly design wireless LANs for different applications to perform optimally in different environments.

CWAP: Certified Wireless Analysis Professional The CWAP certifi cation exam (PW0-270) is a professional-level career certifi cation for networkers who are already CWNA certifi ed and have a thorough understanding of RF technologies and applications of 802.11 networks. This certification provides an in-depth look at 802.11 operations and prepares WLAN professionals to be able to perform, interpret, and understand wireless packet and spectrum analysis.

CWNE: Certified Wireless Network Expert The CWNE certifi cation is the highest-level certifi cation in the CWNP program. By successfully completing the CWNE requirements, you will have demonstrated that you have the most advanced skills available in today’s wireless LAN market. The CWNE certifi cation requires CWNA, CWAP, CWDP, and CWAP certifi cations. To earn the CWNE certifi cation, a rigorous application must be submitted and approved by CWNP’s review team.

Content

1. Overview of Wireless Standards, Organizations, and Fundamentals
2. Radio Frequency Fundamentals
3. Radio Frequency Components, Measurements, and Mathematics
4. Radio Frequency Signal and Antenna Concepts
5. IEEE 802.11 Standards
6. Wireless Networks and Spread Spectrum Technologies
7. Wireless LAN Topologies
8. 802.11 Medium Access
9. 802.11 MAC Architecture
10. WLAN Architecture
11. WLAN Deployment and Vertical Markets
12. WLAN Troubleshooting
13. 802.11 Network Security Architecture
14. Wireless Attacks, Intrusion Monitoring, and Policy
15. Radio Frequency Site Survey Fundamentals
16. Site Survey Systems and Devices
17. Power over Ethernet (PoE)
18. High Throughput (HT) and 802.11n

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Download PDF CWDP TM Certified Wireless Design Professional Official Study Guide by Shawn M. Jackman

Sinopsis

The content of this book is focused on the real world of wireless design. While this book provides all of the necessary information to pass the CWDP exam, the content is primarily focused on providing tangible value to immediately expand your wireless expertise. The knowledge you will obtain from this book will not only prove valuable if you plan on performing or participating in wireless designs, but will also help you understand what makes WLANs tick, spot design mistakes, troubleshoot pesky clients and applications, understand and quantify RF issues, and more.
 

Writing a book on wireless design in order to certify career professionals on designing for any equipment vendor isn ’ t a light undertaking. Vendors differ in their approach. There are even different architectures that greatly vary in the way they work, which is certainly the case between equipment vendors, but major architectural differences can even be found between product lines from a single equipment vendor.
 

The approach taken with the CWDP is far deeper in one area in particular than any other CWNP curriculum has ever embarked upon before — RF. Radio frequency fundamentals is an extremely tough area to teach and is probably the single least understood area of wireless networking across technical professionals. This book aims to change some of that. After all, a house can ’ t be built on a bad foundation. A wired network can ’ t be built using bad cabling. A supersonic jet . . . you get the point. Without the proper foundation for a wireless LAN, the performance will suffer and your network may ultimately fail.
 

The total focus of this book isn ’ t just the wireless network infrastructure we also explore the client devices that the wireless network infrastructure supports. In Wi - Fi, the communication link of a wireless client and an AP must be in parity with each other. For example, if you switch phones, even with the same mobile network carrier, your experience will vary. Where you may have once had good reception, you won ’ t now, and vice versa. It is no different with Wi - Fi. In fact, it is worse. Mobile network carriers have incredible control over the phones they will support and perform a great deal of engineering before placing them into the hands of customers. Wi - Fi, on the other hand, has many different equipment infrastructure vendors, an even greater disparity of operating modes, and a far greater variety of client devices with comparatively very little rigor and testing between them. Industry standards have a lot of wiggle room, and as a wireless network designer, you need to take this fact into account from the onset. After all, the very reason a wireless network exists is to support client devices.
 

If you have purchased this book or if you are thinking about purchasing this book, you probably have some interest in taking the CWDP ® (Certifi ed Wireless Design Professional) certifi cation exam or in learning more about what the CWDP certifi cation exam is about. We would like to congratulate you on this fi rst step, and we hope that our book can help you on your journey. Wireless networking is one of the hottest technologies available today and demands for mobility are great among a wide variety of industries. As with many fast - growing technologies, the demand for knowledgeable people is often greater than the supply. The CWDP certifi cation is your opportunity to distinguish yourself from others and a way to prove that you have the knowledge and skills to support this growing industry. This Study Guide was written with that goal in mind.
 

This book will teach you about wireless networking so that you have the knowledge needed not only to pass the CWDP certification test, but also to be able to design, install, and support wireless networks. We have included review questions at the end of each chapter to help you test your knowledge and prepare for the test. Before we tell you about the certifi cation process and requirements, we must mention that this information may have changed by the time you are taking your test. We recommend that you visit www.cwnp.com as you prepare to study for your test to determine what the current objectives and requirements are.

Content

1. Gathering and Analyzing Requirements
2. Designing for Client Devices and Applications
3. Designing for Applications
4. Industry-Specific Design Considerations
5. Vendor and WLAN Architecture Selection
6. RF Communication Principles
7. RF Hardware and 802.11n
8. Site Survey Preparation
9. Site Survey RF Design
10. MAC Layer Design
11. Basic WLAN Security Design
12. Advanced Enterprise WLAN Security Design
13. Documentation and Finalizing the Design Solution
14. Post-Installation Validation
15. Design Troubleshooting

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Download PDF THE HANDBOOK OF AD HOC WIRELESS NETWORKS by Mohammad Ilyas

Sinopsis

In recent years, the proliferation of mobile computing devices (e. g., laptops, handheld digital devices, personal digital assistants [P DAs], and wearable computers) has driven a revolutionary change in the computing world. As shown in Fig. 1.1, we are moving from the Personal Computer (PC) age (i.e., one computing device per person ) to the Ubiquitous Computing age in which individual users utilize, at the same time, several electroni c platforms through which they can access all the required information whenever and wherever they may be [47]. The nature of ubiquitous devices makes wireless networks the easiest solution for their inte rconnection. This has led to rapid growth in the use of wireless technologies for the Local Area Network (LAN) environment. Beyond supporting wireless connectivity for fixed, portable, and moving statio ns within a local area, wireless LAN (WLAN) technologies can provide a mobile and ubiquitous connection to Internet information services [10]. It is foreseeable that in the notso- distant future, WLAN technologies will be utilized largely as means to access the Internet. WLAN products consum e too much power and have excessive range for many personal consumer electronic and computer devices [40]. A new class of networks is therefore emerging: Personal Area Networks. A Personal Area N etwork (PAN) allows the proximal devices to dynamically share information with minimum power consumption [49].

LANs and PANs do not m eet all the networking requirements of ubiquitous computing. Situations exist where carrying and ho lding a computer are not practical (e.g., assembly line work). A wearable computer solves these prob lems by distributing computer components (e.g., head-mounted displays, microphones, earphones, processors, and mass storage) on the body [21,49]. Users can thus receive jobcritical information and mai ntain control of their devices while their hands remain free for other work. A network with a transmission range of a human body, i.e., a Body Area Network (BAN), constitutes the best solution for connecting wearable devices. Wireless connectivity is envisaged as a natural solution for BANs.

Content

1. Body, Personal, and Local Ad Hoc Wireless Networks
2. Multicasting Techniques in Mobile Ad Hoc Networks
3. Quality of Service in Mobile Ad Hoc Networks
4. Power-Conservative Designs in Ad Hoc Wireless Networks
5. Performance Analysis of Wireless Ad Hoc Networks
6. Coding for the Wireless Channel
7. Unicast Routing Techniques for Mobile Ad Hoc Networks
8. Satellite Communications
9. Wireless Communication Protocols
10. An Integrated Platform for Ad Hoc GSM Cellular Communications
11. IEEE 802.11 and Bluetooth: An Architectural Overview
12. Position-Based Routing in Ad Hoc Wireless Networks
13. Structured Proactive and Reactive Routing for Wireless Mobile Ad Hoc
14. Hybrid Routing: The Pursuit of an Adaptable and Scalable Routing Framework for Ad Hoc Networks
15. Adaptive Routing in Ad Hoc Networks
16. Position-Based Ad Hoc Routes in Ad Hoc Networks
17. Route Discovery Optimization Techniques in Ad Hoc Networks
18. Location-Aware Routing and Applications of Mobile Ad Hoc Networks
19. Mobility over Transport Control Protocol/Internet Protocol (TCP/IP)
20. An Intelligent On-Demand Multicast Routing Protocol in Ad Hoc Networks
21. GPS-Based Reliable Routing Algorithms for Ad Hoc Networks 
22. Power-Aware Wireless Mobile Ad Hoc Networks
23. Energy Efficient Multicast in Ad Hoc Networks
24. Energy-Conserving Grid Routing Protocol in Mobile Ad Hoc Networks
25. Routing Algorithms for Balanced Energy Consumption in Ad Hoc Networks
26. Resource Discovery in Mobile Ad Hoc Networks
27. An Integrated Platform for Quality-of-Service Support in Mobile Multimedia Clustered Ad Hoc Networks
28. Quality of Service Models for Ad Hoc Wireless Networks
29. Scheduling of Broadcasts in Multihop Wireless Networks
30. Security in Wireless Ad Hoc Networks — A Survey
31. Securing Mobile Ad Hoc Networks
32. Security Issues in Ad Hoc Networks

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Download PDF Course Booklet CCNA Exploration LAN Switching and Wireless

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Download PDF Wireless Networks and Security Issues, Challenges and Research Trends by Shafiullah Khan

Sinopsis

Computer programs that radio amateurs use in their digital networks give various opportunities for checking user authentication before allowing access to sensitive parts of communication systems. Those systems include not only email servers that handle amateur radio messaging and file exchange, but also include radio-relay networks of digital repeaters that operate in big cities, or in rural and remote locations. This chapter summarizes results of experiments performed in real amateur packet radio networks as well as those provided by simulations with amateur radio software in local area networks. Our intention was to test security in accessing e-mail servers and radio relay systems within the average amateur radio digital infrastructure. This study suggests various methods which aim is to bridge the gap between the improved safety, and eventual discomfort in regular end-user’s and system administrator's activities. We focused our work to the following challenges: user authentication in amateur radio email servers; key management, i.e. obtaining, installing, and renewing secret documents (‘keys’) in between end-users and system administrators; encryption of email content and user passwords; attacks, epidemics, and appropriate countermeasures; and other protective actions that increase the security and satisfaction in average network participants. Described methods will help practitioners, students and teachers in computer science and communication technologies in implementing exciting amateur radio wireless opportunities within educational computer networks, as well as in planning new telecommunication systems.

Compared to security challenges we face to in our daily Internet-related activities, the amateur radio community does not suffer so much from exposures to known and unknown dangers that may come from their own wireless networks. For such positive situation we can thank to the global and local laws and regulations that require from all amateur radio candidates to pass written and oral, technical and regulatory tests, as well as to pass a basic security background check – before obtaining a license for transmitting radio signals. However, that does mean that the amateur radio digital infrastructure is completely secured and safe for every day’s use. Luckily, there are many opportunities in available safety measures, which support the integrity of both user's rights and system administrator's privileges. Personal computers that most of our schools, workplaces and homes are equipped with nowadays are capable to include security features in existing amateur radio programs or to become additionally enhanced with add-on software. Valuable information about available safety features can be easily obtained in regular amateur radio correspondence with peers, or by using dedicated information channels such as various ‘doc’ folders in email servers’ file repositories. For those who are likely to experiment in an isolated local area network (LAN), consisting of at least two or three machines, there are opportunities to replicate some of the experiments in this chapter.

As described in available sources on the amateur radio simulations [1], a simplest testing scenario might be in a LAN with at least two computers, which is a suitable situation for simulating radio traffic between two different amateur radio facilities, such as digital amateur radio-relay systems - commonly called digipeaters (a short of 'digital repeaters'), or BBS ('Bulletin Board Systems'; i.e., email servers). By simulating amateur radio traffic, we learn technologies and protocols used in real amateur radio frequency (RF) networks that include thousands radio-relay stations worldwide, as well as radio email servers and various home or work communicating solutions. For those of you who already have experience in dealing with ‘ham’ (=amateur radio) high frequency (HF), VHF or UHF communications, these homemade simulations will provide useful information on available solutions that are going to improve security of a wireless system that you might be responsible for.

One of the frequently asked questions during author’s amateur radio presentations at technical conferences and similar events – is how to ensure the safe access to the end-user email accounts – where the radio waves are the only media for transmitting information. In fact, due to the international regulations, the amateur radio traffic must travel as the open, no ciphered text, which means that all radio amateurs on a frequency are capable to ‘read’ everything that flows through the channel, by just simple activating his or her antenna, receiver, modem, and appropriate computer software [2]. The same rules also restrict what types of topics and discussions are acceptable in ham radio or not. For example, it is completely common to communicate the following themes: installation of antenna systems, power supply and grounding facilities; building amateur radio receivers and transmitters; programming amateur radio hardware and software; fixing small technical problems with computers and amateur radio stations, etc. That does not mean that general educational topics are not interesting for the local radio amateur community. Discussions about preparing technical conferences, papers and tutorials, or incoming technical expeditions and interesting school projects as well as non-classified details of scientific research or master and doctoral studies are completely suitable for distributing via amateur radio wireless networks. In opposite, it is not acceptable to discuss on things that include political, racial, national, social, sexual, business and similar potentially provocative themes. On the other side, there is a not a strict distinction between more or less priorities in the amateur radio communications. It is obvious that, according to the laws, emergency cases have priority, particularly when it comes to save human's lives or proprieties. But, in any occasion, one can be sure that amateur radio conversations are as 'private' as the talks in, say, public transportation systems, which actually means that there is not much 'privacy' there – if any. As mentioned, every user of a local amateur radio email server should be aware that unknown amateurs could easily read the text of his or her messages – either during an exchange of content with the email server, or during the exchange of content between those 'store & forward' systems, i.e. email servers. In such a relatively open environment, most countries have allowed the amateur radio communications primarily for an exchange of results of radio- and computer-related experiments that do not include commercial discussions, such as advertisements related to selling computers, other home appliances or any other goods. In the other words, the amateur radio laws support the major goal, which is to establish an ordinary '2-way' communication link between two or more wireless enthusiasts who might be the local school's students or teachers, as well as their parents, friends and other relatives. The basic idea is to increase the popularity of engineering and technology in young generations and to motivate them to continue education in technical professions such as electronics, electrical and mechanical engineering, computer science, hardware production, software development, etc. To summarize, when we come to commercial or other topics that are not appropriate for the amateur radio channels, it is the right time for all of us to switch from the amateur radio to commercial email service providers or similar public communicating systems.

Content

1. Security in Amateur Packet Radio Networks
2. Security Issues in Mobile Ad Hoc Network
3. Secure AODV Routing Protocol Based on Trust Mechanism 
4. Security and Privacy in Vehicular Ad-Hoc Networks: Survey and the Road Ahead.
5. Security Issues and Approaches onWireless M2M Systems 
6. Security and Privacy in Wireless Body Area Networks for Health Care Applications
7. Security and Privacy Issues in Wireless Mesh Networks: A Survey
8. Trust Establishment Techniques in VANET
9. Improving the Security of Wireless Sensor Networks by Protecting the Sensor Nodes against Side Channel Attacks
10. Intrusion Detection in Wireless Sensor Networks: Issues, Challenges and Approaches
11. Network Coding for Security in Wireless Reconfigurable Networks
12. A Secure Intragroup Time Synchronization Technique to Improve the Security and Performance of Group-Based Wireless Sensor Networks
13. Capacity-Approaching Channel Codes for Discrete Variable Quantum Key Distribution (QKD) Applications
14. A Comparative Study on Security Implementation in EPS/LTE and WLAN/802.11

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Download PDF THE HANDBOOK OF AD HOC WIRELESS NETWORKS by Mohammad Ilyas

Sinopsis

In recent years, the proliferation of mobile computing devices (e. g., laptops, handheld digital devices, personal digital assistants [P DAs], and wearable computers) has driven a revolutionary change in the computing world. As shown in Fig. 1.1, we are moving from the Personal Computer (PC) age (i.e., one computing device per person ) to the Ubiquitous Computing age in which individual users utilize, at the same time, several electroni c platforms through which they can access all the required information whenever and wherever they may be [47]. The nature of ubiquitous devices makes wireless networks the easiest solution for their inte rconnection. This has led to rapid growth in the use of wireless technologies for the Local Area Network (LAN) environment. Beyond supporting wireless connectivity for fixed, portable, and moving statio ns within a local area, wireless LAN (WLAN) technologies can provide a mobile and ubiquitous connection to Internet information services [10]. It is foreseeable that in the notso- distant future, WLAN technologies will be utilized largely as means to access the Internet.

WLAN products consum e too much power and have excessive range for many personal consumer electronic and computer devices [40]. A new class of networks is therefore emerging: Personal Area Networks. A Personal Area N etwork (PAN) allows the proximal devices to dynamically share information with minimum power consumption [49]. LANs and PANs do not m eet all the networking requirements of ubiquitous computing. Situations exist where carrying and ho lding a computer are not practical (e.g., assembly line work). A wearable computer solves these prob lems by distributing computer components (e.g., head-mounted displays, microphones, earphones, processors, and mass storage) on the body [21,49]. Users can thus receive jobcritical information and mai ntain control of their devices while their hands remain free for other work. A network with a transmission range of a human body, i.e., a Body Area Network (BAN), constitutes the best solution for connecting wearable devices. Wireless connectivity is envisaged as a natural solution for BANs.

Content

1. Body, Personal, and Local Ad Hoc Wireless Networks
2. Multicasting Techniques in Mobile Ad Hoc Networks
3. Quality of Service in Mobile Ad Hoc Networks
4. Power-Conservative Designs in Ad Hoc Wireless Networks
5. Performance Analysis of Wireless Ad Hoc Networks
6. Coding for the Wireless Channel
7. Unicast Routing Techniques for Mobile Ad Hoc Networks
8. Satellite Communications
9. Wireless Communication Protocols
10. An Integrated Platform for Ad Hoc GSM Cellular Communications
11. IEEE 802.11 and Bluetooth: An Architectural Overview
12. Position-Based Routing in Ad Hoc Wireless Networks
13. Structured Proactive and Reactive Routing for Wireless Mobile Ad Hoc
14. Hybrid Routing: The Pursuit of an Adaptable and Scalable Routing Framework for Ad Hoc Networks
15. Adaptive Routing in Ad Hoc Networks
16. Position-Based Ad Hoc Routes in Ad Hoc Networks
17. Route Discovery Optimization Techniques in Ad Hoc Networks
18. Location-Aware Routing and Applications of Mobile Ad Hoc Networks
19. Mobility over Transport Control Protocol/Internet Protocol (TCP/IP)
20. An Intelligent On-Demand Multicast Routing Protocol in Ad Hoc Networks
21. GPS-Based Reliable Routing Algorithms for Ad Hoc Networks
22. Power-Aware Wireless Mobile Ad Hoc Networks
23. Energy Efficient Multicast in Ad Hoc Networks
24. Energy-Conserving Grid Routing Protocol in Mobile Ad Hoc Networks
25. Routing Algorithms for Balanced Energy Consumption in Ad Hoc Networks
26. Resource Discovery in Mobile Ad Hoc Networks
27. An Integrated Platform for Quality-of-Service Support in Mobile Multimedia Clustered Ad Hoc Networks
28. Quality of Service Models for Ad Hoc Wireless Networks
29. Scheduling of Broadcasts in Multihop Wireless Networks
30. Security in Wireless Ad Hoc Networks — A Survey
31. Securing Mobile Ad Hoc Networks
32. Security Issues in Ad Hoc Networks

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