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This book has been written with the support of Huawei's large accumulation of technical knowledge and experience in the WLAN field, as well as its understanding of customer service requirements. First, the book covers service challenges facing enterprise wireless networks, along with detailing the latest evolution of Wi-Fi standards, air interface performance, and methods for improving user experience in enterprise scenarios. Furthermore, it illustrates typical networking, planning, and scenario-specific design for enterprise WLANs, and provides readers with a comprehensive understanding of enterprise WLAN planning, design, and technical implementation, as well as suggestions for deployment.This is a practical and easy-to-understand guide to WLAN design, and is written for WLAN technical support and planning engineers, network administrators, and enthusiasts of network technology.AuthorsRihai Wu is Chief Architect of Huawei's campus network WLAN solution with 16 years of experience in wireless communications product design and a wealth of expertise in network design and product development. He previously served as a designer and developer of products for Wideband Code Division Multiple Access (WCDMA), LTE indoor small cells, and WLAN.Xun Yang is a WLAN standard expert from Huawei. He has nine years of experience in formulating WLAN standards, and previously served as 802.11ac Secretary, 802.11ah PHY Ad-hoc Co-chair, and 802.11ax MU Ad Hoc Sub Group Co-chair. Mr. Yang oversees technical research, the promotion of standards, and industrialization in the WLAN field, and has filed more than 100 patents.Xia Zhou is a documentation engineer of Huawei's campus network WLAN solution. She has 10 years of experience in creating documents for campus network products. Ms. Zhou was previously in charge of writing manuals for Huawei data center switches, WLAN products, and campus network solutions. She is also the author of Campus Network Solution Deployment Guide and was a co-sponsor of technical sessions such as WLAN from Basics to Proficiency.Yibo Wang is a documentation engineer of Huawei's campus network WLAN solution. He has nine years of experience in creating documents for campus network products. Mr. Wang was previously in charge of writing manuals for Huawei switches, WLAN products, and routers. He was also a co-sponsor of technical sessions such as WLAN from Basics to Proficiency and HCIA-WLAN certification training courses.

Wireless systems are evolving towards the development of broadband applications, including multimedia services in a way to compete with wired LAN systems. It is expected that users will eventually demand the development of new applications with broadband access and bit rates higher that 2 Mbps, including broadband WLANs, multimedia, and interactive broadcasts in a global environment based on terrestrial and satellite systems. This necessity will give rise to a fourth generation systems however the scarcity of available spectrum will pose serious obstacle to the development. The WLAN Industry currently stands at 23.6 Billion $ and expected to grow 65 Billion $ by 2015. The market is widely dominated by leaders like Cisco, HP, Nortel where majority of market share is owned, small and new entries to the industry focus on Innovation and Pricing as their business strategy. This research evaluates the WLAN market in 2012 and analyzes the future prospects, players, and key issues such as security.

Chapter 1 - Wi-Fi Chapter 2 - Municipal Wireless Network Chapter 3 - Hotspot (Wi-Fi) Chapter 4 - Long-Range Wi-Fi Chapter 5 - Wi-Fi Operating System Support Chapter 6 - Generic Access Network Chapter 7 - Piggybacking (Internet Access) Chapter 8 - Wi-Fi Protected Setup Chapter 9 - Local Area Network & Personal Area Network Chapter 10 - Wireless LAN Chapter 11 - Wide Area Network Chapter 12 - Wi-Fi Protected Access Chapter 13 - Wi-Fi Alliance Chapter 14 - Wireless Access Point

If you're trying to solve a particular problem, you can jump in and read the topics in this ebook in any order, but if you start at the beginning, you'll learn how Apple's 802.11n gear fits into the world of Wi-Fi networking. With that background, you'll learn where to position and how to set up base stations, with diagrams showing common network scenarios—see two examples above—and with step-by-step instructions for configuring key Internet sharing and security options and connecting client computers. For those who have funky Internet connections or tricky IP addressing needs, Glenn provides extended advice for creating a working Wi-Fi network. Glenn provides real-world steps, detailed advice, and tips for important scenarios, including: AirDrop: Finding out whether Lion's AirDrop file-transfer feature will work with your Mac's Wi-Fi hardwareUSB-attached printer: Setting up a USB-based printer on your Wi-Fi network, and connecting to the printer from Mac and Windows computersUSB-attached drive: Adding and configuring a USB-attached drive to a Time Capsule or AirPort Extreme, with important information about how best to configure client accessTime Capsule: Setting up a Time Machine backup to a Time Capsule, plus making an archive so you can have an offsite backup of your Time Capsule drive, and how to erase the driveApple TV: Connecting a 2nd-generation Apple TV to your networkAirPort Express: Streaming music to an AirPort Express and connecting it to your stereoGuest network: Creating a separate guest network to give guests Internet access while restricting local resourcesSecurity: Understanding oft-suggested security approaches that don't work well and implementing measures that are reliable—and easy to useMultiple base stations: Configuring multi-base-station networks, whether connected via Ethernet, wirelessly, or a combination To make your network fly, Glenn helps you: Make appropriate band and channel choicesExtend your network's coverage while handling any interferencePrevent older clients from bogging you down If you're trying to solve a problem, you'll find a'Quick Troubleshooting Guide'chapter as well as a rundown of how to interpret what the green, amber, blue, or red light on your base station is trying to tell you (we're aware of at least 11 possibilities!). The ebook also explains several ways to find a MAC address, how to handle bridging, how to set up a software base station and an ad hoc network, and what might be coming in the future with IPv6.'If anyone knows about real-world Wi-Fi, it's Glenn Fleishman.'—Mark Frauenfelder, co-founder of bOING bOING

Wi-Fi has become the preferred means for connecting to the internet - at home, in the office, in hotels and at airports. Increasingly, Wi-Fi also provides internet access for remote communities where it is deployed by volunteers in community-based networks, by operators in'hotspots'and by municipalities in'hotzones'. This book traces the global success of Wi-Fi to the landmark change in radio spectrum policy by the US FCC in 1985, the initiative by NCR Corporation to start development of Wireless-LANs and the drive for an open standard IEEE 802.11, released in 1997. It also singles out and explains the significance of the initiative by Steve Jobs at Apple to include Wireless-LAN in the iBook, which moved the product from the early adopters to the mass market. The book explains these developments through first-hand accounts by industry practitioners and concludes with reflections and implications for government policy and firm strategy.

Coverage problem is an important and fundamental issue in sensor networks, which reflects how well a sensor network is monitored or tracked by a sensor. The current research on coverage problem in sensor networks are reviewed in this book. Specifically, two types of sensor coverage are investigated: area coverage and target coverage. In addition, the degree to which the goals of pervasive Internet and network access have been realised with community wireless networks is explored. Call-level performance modeling and QoS Assessment of W-CDMA networks is also addressed. In particular, multi-service teletraffic models suitable for the QoS assessment of W-CDMA networks is looked at. Angle of arrival (AOA) estimation is a significant technology in wireless networks, which can be exploited to locate mobile units, enhance communication efficiency and network capacity, and support location-aided routing. The many different high-resolution algorithms for AOA estimation is discussed. The performance of the algorithms is analyzed and compared, and evaluated against theoretical lower bounds. One of the most important network security objectives is authentication, which means to know who send the data and where it came from. An intelligent authentication and key agreement mechanism for e-Hospital applications is proposed in this book. In addition, a mathematical model for calculating the coverage fraction in wireless sensor networks (WSNs) is addressed. Furthermore, a comprehensive survey of recent researches on intentional mobility of WSN's is given. An overview of the cognitive radio technology and latest research developments in different layers of the protocol stack are discussed. Important topics such as wide-band spectrum sensing, transceiver architecture and dynamic spectrum allocation are reviewed as well. An overview of how satellite networking affects TCP (Transmission Control Protocol) is examined. The main performance enhancing techniques encountered in the literature is also looked at. A mobile network architecture which addresses the handoff delays and protocol overheads of NEMO are presented. The feasibility of the architecture is evaluated by comparing its performance with state of the art proposals using both analytical and empirical data. Finally, an Art Colony Optimization (ACO) based method is proposed to reduce the computational and communication overhead for wireless networks.

'Picture Yourself Networking Your Home or Small Office'uses photos and diagrams, complemented by extensive and easy-to-follow text, to help any reader network his or her home or small office using wired or wireless technology.

Are you involved in implementing wireless mesh networks? As mesh networks move towards large-scale deployment, this highly practical book provides the information and insights you need. The technology is described, potential pitfalls in implementation are identified, clear hints and tips for success are provided, and real-world implementation examples are evaluated. Moreover, an introduction to wireless sensor networks (WSN) is included. This is an invaluable resource for electrical and communications engineers, software engineers, technology and information strategists in equipment, content and service providers, and spectrum regulators. It is also a useful guide for graduate students in wireless communications, and telecommunications.

Make your 802.11n-based AirPort network fast, reliable, and secure! Find real-world advice from Wi-Fi wizard Glenn Fleishman on setting up the 802.11n models of Apple's AirPort Express, AirPort Extreme, and Time Capsule, with full information about the simultaneous dual-band models introduced in early 2009. You'll get help with all the special networking details, such as how to set the best band and channel for your network, use pre-802.11n base stations and clients without hurting performance, set up complex Internet addressing, share USB disks and printers, solve a variety of problems, and much, much more. If you're trying to solve a particular problem, you can jump in and read the topics in this ebook in any order, but if you start at the beginning, you'll find a primer on important Wi-Fi networking terminology and concepts, and a look at how Apple's 802.11n gear fits into the world of Wi-Fi networking. With that background, you'll learn how to locate and set up base stations, with diagrams showing common network scenarios-see two examples above on this Web page-and with step-by-step instructions for configuring key Internet sharing and security options and connecting client computers. For those who have funky Internet connections or tricky IP addressing problems, Glenn provides extended advice for creating a working Wi-Fi network. Glenn also provides real-world steps for important add-ons to a Wi-Fi network, including: Getting started with a Time Capsule and Time Machine backups, plus thoughts on making an archive so you can have an offsite backup of your Time Capsule drive and what to do if you want to erase the driveDetailed advice for setting up a USB-based printer and for making connections to the printer work from Macintosh and Windows computersHelp with connecting an Apple TV to your network and advice on how to start syncing it to your computerSteps and configuration advice for adding a USB-attached drive to a Time Capsule or AirPort Extreme, with important information about how best to allow and configure client accessTips and setup advice for streaming music from an AirPort Express to your stereo systemDetailed configuration advice for multi-base-station networks To make your network fly, Glenn helps you: Make band and channel choicesCombine your old 802.11g network with a new 802.11n network to split traffic and maximize network bandwidthExtend your network's coverage while handling any interference Glenn also discusses wireless-network security, noting oft-suggested security approaches that don't work well and explaining how to implement measures that do work well. He covers the new guest networking option in the 2009 models of the AirPort Extreme and Time Capsule. This'Take Control'book is a must-have for anyone who needs to quickly and easily set up an AirPort network. —Phil Kearney,'father'of Apple's AirPort product line'If anyone knows about real-world Wi-Fi, it's Glenn Fleishman.'—Mark Frauenfelder, co-founder of bOING bOING

Wireless LANs have become mainstream over the last few years. What started out as cable replacement for static desktops in indoor networks has been extended to fully mobile broadband applications involving moving vehicles, high-speed trains, and even airplanes. This book is designed to appeal to a broad audience with different levels of technical background and can be used in a variety of ways: as a first course on wireless LANs, as a graduate-level textbook, or simply as a professional reference guide. It describes the key practical considerations when deploying wireless LANs and equips the reader with a solid understanding of the emerging technologies. The book comprises 38 high-quality contributions from industry and academia and covers a broad range of important topics related to 802.11 networks, including quality of service, security, high throughput systems, mesh networking, 802.11/cellular interworking, coexistence, cognitive radio resource management, range and capacity evaluation, hardware and antenna design, hotspots, new applications, ultra-wideband, and public wireless broadband.

In recent years there has been significant and increasing interest in ad hoc wireless networks. The design, analysis and deployment of such wireless networks necessitate a fundamental understanding of how much information transfer they can support, as well as what the appropriate architectures and protocols are for operating them. This monograph addresses these questions by presenting various models and results that quantify the information transport capability of wireless networks, as well as shed light on architecture design from a high level point of view. The models take into consideration important features such as the spatial distribution of nodes, strategies for sharing the wireless medium, the attenuation of signals with distance, and how information is to be transferred, whether it be by encoding, decoding, choice of power level, spatio-temporal scheduling of transmissions, choice of multi-hop routes, or other modalities of cooperation between nodes. An important aspect of the approach is to characterize how the information hauling capacity scales with the number of nodes in the network. The monograph begins by studying models of wireless networks based on current technology, which schedules concurrent transmissions to take account of interference, and then routes packets from their sources to destinations in a multi-hop fashion. An index of performance, called transport capacity, which is measured by the bit meters per second the network can convey in aggregate, is studied. For arbitrary networks, including those allowing for optimization of node locations, the scaling law for the transport capacity in terms of the number of nodes in the network is identified. For random networks, where nodes are randomly distributed, and source-destination pairs are randomly chosen, the scaling law for the maximum common throughput capacity that can be supported for all the source-destination pairs is characterized. The constructive procedure for obtaining the sharp lower bound gives insight into an order optimal architecture for wireless networks operating under a multi-hop strategy. To determine the ultimate limits on how much information wireless networks can carry requires an information theoretic treatment, and this is the subject of the second half of the monograph. Since wireless communication takes place over a shared medium, it allows more advanced operations in addition to multi-hop. To understand the limitations as well as possibilities for such information transfer, wireless networks are studied from a Shannon information-theoretic point of view, allowing any causal operation. Models that characterize how signals attenuate with distance, as well as multi-path fading, are introduced. Fundamental bounds on the transport capacity are established for both high and low attenuation regimes. The results show that the multi-hop transport scheme achieves the same order of scaling, though with a different pre-constant, as the information theoretically best possible, in the high attenuation regime. However, in the low attenuation regime, superlinear scaling may be possible through recourse to more advanced modes of cooperation between nodes. Techniques used in analyzing multi-antenna systems are also studied to characterize the scaling behavior of large wireless networks.

Wireless sensor networks promise an unprecedented fine-grained interface between the virtual and physical worlds. They are one of the most rapidly developing information technologies, with applications in a wide range of fields including industrial process control, security and surveillance, environmental sensing, and structural health monitoring. Originally published in 2005, this book provides a detailed and organized survey of the field. It shows how the core challenges of energy efficiency, robustness, and autonomy are addressed in these systems by networking techniques across multiple layers. The topics covered include network deployment, localization, time synchronization, wireless radio characteristics, medium-access, topology control, routing, data-centric techniques, and transport protocols. Ideal for researchers and designers seeking to create algorithms and protocols and engineers implementing integrated solutions, it also contains many exercises and can be used by graduate students taking courses in networks.

Fully addressing the most critical WLAN and Wireless IP issues in the industry today, this practical new resource focuses on the areas of security, mobility, and QoS improvement. The book gives you a solid understanding of IEEE 802.11 standards and presents solutions discussed by the IEEE 802.11 standardization committee, including those that can be provided at the IP layer. Moreover, the book provides guidance on deployment, insights on interworking with 3G mobile communications systems, and discussions on the market and business aspects of WLANS. From basic WLAN and Wireless IP concepts and the current status of IEEE 802.11, to WLAN deployment and integration with GPRS and UMTS and the future role of WLAN in beyond 3G and 4G systems, this authoritative reference presents a thorough overview of the key issues and possible solutions for WLANs from layer-1 to layer-3 and higher protocol layers, wherever necessary. The book is generously supported with over 120 illustrations.

'ExtremeTech'--Cover.

Explore the present and future trends of WLANs and WPANs with this new, forwarding looking resource. You discover the path that these infrastructures are following from a perspective of synergies with 3G systems, and how they will pave the way for future 4G systems. The book presents a thorough overview of 3G networks and standards, and discusses interworking and handover mechanisms between WLANs and UMTS. You learn what performance can be expected from WLANs and WPANs when they support the TCP/IP stack. Several critical issues are examined in depth, including IP routing and mobility, PHY an.

This book provides the following benefits to readers: Ability to select the most effective wireless LAN type from a wide assortment of recent and emerging standards. Independent assessment of competing wireless LAN technologies. More efficient design and operational support of wireless LANs because of an understanding of wireless LAN protocol operations and frame structures. Definition of typical requirements and technology assessment parameters, providing a basis for evaluating wireless LANs. Vision of the future of wireless LANs. Real-world experiences through case studies and implementation tips located throughout the book. Quick overview of the features, pros, and cons of each of the wireless LAN standards located at the beginning of each chapter.