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Abstrak :
If you've been searching for a way to get up to speed on IEEE 802.11n and 802.11ac WLAN standards without having to wade through the entire specification, then look no further. This comprehensive overview describes the underlying principles, implementation details and key enhancing features of 802.11n and 802.11ac. For many of these features the authors outline the motivation and history behind their adoption into the standard. A detailed discussion of key throughput, robustness, and reliability enhancing features (such as MIMO, multi-user MIMO, 40/​80/​160 MHz channels, transmit beamforming and packet aggregation) is given, plus clear summaries of issues surrounding legacy interoperability and coexistence. Now updated and significantly revised, this 2nd edition contains new material on 802.11ac throughput, including revised chapters on MAC and interoperability, plus new chapters on 802.11ac PHY and multi-user MIMO. An ideal reference for designers of WLAN equipment, network managers, and researchers in the field of wireless communications"

Abstrak :
Interworking of Wireless LANs and Cellular Networks focuses on three aspects, namely access selection, call admission control and load sharing to investigate heterogeneous interworking for cellular/WLAN integrated networks. It not only reveals important observations but also offers useful tools for performance evaluation. The unique traffic and network characteristics are exploited to enhance interworking effectiveness. Theoretical analysis and simulation validation demonstrate benefits of cellular/WLAN interworking in real networks. Last but not the least, this brief highlights promising future research directions to guide interested readers.

Abstrak :
Contents : - Table of Contents by Author - On the Selection of the Optimum Emerging Wireless Broadband Technology by a Mobile Operator - Fiber Optics for Wireless Telecommunications - Emerging Wireless Technologies - Integration of Wireless Access with Wireline Networks:OAM&P Support Architecture with ITU-tML Technology - How to Make Money in Broadband Wireless - Converged Public and Enterprise Wireless Networks - 4G Mobile IP Will Become a Disruptive Technology - An Overview of Wireless Fixed and Mobile Access Technologies - 802.16 Broadband Access:Evolving from Fixed to Mobile Operation - IP Data Communication over the Wireless Network - WiMAX - The Application of WiMAX Technologies in Rural Montana - Will WiMAX Work? - WiMAX, NLOS, and Broadband Wireless Access (Sub-11Ghz)Worldwide Market Analysis 2004-2008 - WiMAX versus Wi-Fi - A Business Justification:WiMAX Service Providers and Security Investments - WiMAX: The Next Generation of Wireless Communication? - WiMAX Promises a New Era in Telecom - WiMAX: Outlining Business Strategies - WiMAX: Final Destination or Path - Simulation of 802.16a Deployment Scenarios and Their Performance Analysis - Wireless Networks for Real-Time Multimedia Communications - Cellular and WLAN Convergence - Adaptive Antenna Arrays for WLAN Communication Systems - Wireless LAN: Security,Reliability, and Scalability - Wi-Fi Networks: A Discussion from the Carrier Perspective - Operations Support System(OSS) Requirements and Solutions for Carrier-Grade Wireless LAN Services - Case Study: The City Of Fredericton Free Wi-Fi Zone - Wi-Fi Hotspots Deployment in a Next-Generation Network Environment - 3G UMTS:IEEE 802.11b WLAN Internetworking for VoIP Services - IP Multimedia Subsystem(IMS) - From Voice to Data:The 3G Mass-Market Challenge - UMTS 3G Technology in Broadband Wireless Applications - A Mobility-Management Scheme in All IP Integrated Network - Impact of the Interference from Intermodulation Products on the Load Factor and Capacity of Cellular CDMA2000 and WCDMA Systems and Mitigation with Interference Suppression - TD CDMA:Fusion of Broadband and Mobility - Understanding MAC Protocol Architectural Implications of 802.11 QoS Amendments - Quality of Service in Broadband Wireless Networks - Bringing Quality in the 802.11 Wireless Arena - Managing Key Performance Indicators for Wireless Services - Authentication in Wireless LANs - A Novel Broadband/Wireless Routing Algorithm - Acronym Guide

Abstrak :
This book provides an overview of the latest research and development of new technologies for cognitive radio, mobile communications, and wireless networks. The contributors discuss the research and requirement analysis and initial standardization work towards 5G cellular systems and the capacity problems it presents. They show how cognitive radio, with the capability to flexibly adapt its parameters, has been proposed as the enabling technology for unlicensed secondary users to dynamically access the licensed spectrum owned by legacy primary users on a negotiated or an opportunistic basis. They go on to show how cognitive radio is now perceived in a much broader paradigm that will contribute to solve the resource allocation problem that 5G requirements raise. The chapters represent hand-selected expanded papers from EAI sponsored and hosted conferences such as the 12th EAI International Conference on Mobile and Ubiquitous Systems, the 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, the 10th International Conference on Cognitive Radio Oriented Wireless Networks, the 8th International Conference on Mobile Multimedia Communications, and the EAI International Conference on Software Defined Wireless Networks and Cognitive Technologies for IoT.