Wireless LANs will enable small teams and communities to communicate via their mobile devices without cables. This new technology will facilitate communication in small businesses/teams such as in hospitals, on construction sites, warehouses, etc. Held provides a comprehensive guide to the implementation, planning and monitoring of all aspects of wireless LAN security in small offices/small to medium business (SMBs). Securing Wireless LANs is timely in addressing the security issues of this important new technology and equips its readers with the tools they need to make the appropriate choice for their own situation. This ideal introduction to wireless LAN technology: * Provides a broad overview of all the different issues and practical guidance of how to make wireless LANs secure at home as well as in small offices * Explains how to monitor wireless LANs, configure different types of wireless equipment * Discusses which technologies are best for different situations and requirements * Gives practical hints and advice on how to implement them
From the Publisher: The new generation of Ethernet networks can perform as fast as ATM and cost about a quarter of the price. A prolific author of computer books provides a detailed introduction to LAN technology, describes the operation of each type of Ethernet network and discusses LAN performance. This expanded and updated edition is the most comprehensive on the subject and covers new topics including switching hubs, routers and the Ethernet's role in multimedia networks. Contains over 100 charts, tables, halftones and diagrams.
Internet Protocol (IP) networks have, for a number of years, provided the basis for modern communication channels. However, the control and management of these networks needs to be extended so that the required Quality of Service can be achieved. Information about new generations of IP networks is given, covering the future of pervasive networks (that is, networks that arealways present), Wi-Fi, the control of mobility and improved Quality of Service, sensor networks, inter-vehicle communication and optical networks.
Covering the fast evolving area of advanced coding, Error Control Coding for B3G/4G Wireless Systems targets IMT-Advanced systems to present the latest findings and implementation solutions. The book begins by detailing the fundamentals of advanced coding techniques such as Coding, Decoding, Design, and Optimization. It provides not only state-of-the-art research findings in 3D Turbo-codes, non-binary LDPC Codes, Fountain, and Raptor codes, but also insights into their real-world implementation by examining hardware architecture solutions, for example VLSI complexity, FPGA, and ASIC. Furthermore, special attention is paid to Incremental redundancy techniques, which constitute a key feature of Wireless Systems. A promising application of these advanced coding techniques, the Turbo-principle (also known as iterative processing), is illustrated through an in-depth discussion of Turbo-MIMO, Turbo-Equalization, and Turbo-Interleaving techniques. Finally, the book presents the status of major standardization activities currently implementing such techniques, with special interest in 3GPP UMTS, LTE, WiMAX, IEEE 802.11n, DVB-RCS, DVB-S2, and IEEE 802.22. As a result, the book coherently brings together academic and industry vision by providing readers with a uniquely comprehensive view of the whole topic, whilst also giving an understanding of leading-edge techniques. Includes detailed coverage of coding, decoding, design, and optimization approaches for advanced codes Provides up to date research findings from both highly reputed academics and industry standpoints Presents the latest status of standardization activities for Wireless Systems related to advanced coding Describes real-world implementation aspects by giving insights into architecture solutions for both LDPC and Turbo-codes Examines the most advanced and promising concepts of turbo-processing applications: Turbo-MIMO, Turbo-Equalization, Turbo-Interleaving
Power grids, flexible manufacturing, cellular communications: interconnectedness has consequences. This remarkable book gives the tools and philosophy you need to build network models detailed enough to capture essential dynamics but simple enough to expose the structure of effective control solutions. Core chapters assume only exposure to stochastic processes and linear algebra at undergraduate level; later chapters are for advanced graduate students and researchers/practitioners. This gradual development bridges classical theory with the state-of-the-art. The workload model at the heart of traditional analysis of the single queue becomes a foundation for workload relaxations used in the treatment of complex networks. Lyapunov functions and dynamic programming equations lead to the celebrated MaxWeight policy along with many generalizations. Other topics include methods for synthesizing hedging and safety stocks, stability theory for networks, and techniques for accelerated simulation. Examples and figures throughout make ideas concrete. Solutions to end-of-chapter exercises are available on a companion website.
This 1998 book addresses deregulatory policies that threaten to reduce or destroy the value of private property in network industries without any accompanying payment of just compensation, policies that are termed 'deregulatory takings'. The authors further consider the problem of renegotiation of the regulatory contract, which changes the terms and conditions of operation of utility companies. They argue that constitutional protections of private property from takings, as well as efficient remedies for contractual breach, provide the proper foundation for the competitive transformation of the network industries. The benefits of competition do not stem from government regulations that redistribute income from utility investors to customers, nor do such benefits stem from regulatory policies for network access that promote free riding on incumbent facilities by entrants. Such actions represent a new version of increased regulation, not deregulation.
This book addresses the multiple technical aspects of the distribution of synchronization in new generation telecommunication networks, focusing in particular on synchronous Ethernet and IEEE1588 technologies. Many packet network engineers struggle with understanding the challenges that precise synchronization distribution can impose on networks. The usual “why”, “when” and particularly “how” can cause problems for many engineers. In parallel to this, some other markets have identical synchronization requirements, but with their own design requirements, generating further questions. This book attempts to respond to the different questions by providing background technical information. Invaluable information on state of-the-art packet network synchronization and timing architectures is provided, as well as an unbiased view on the synchronization technologies that have been internationally standardized over recent years, with the aim of providing the average reader (who is not skilled in the art) with a better understanding of this topic. The book focuses specifically on synchronous Ethernet and IEEE 1588 PTP-based technologies, both key developments in the world of synchronization over the last 10 years. The authors address the needs of engineers and technical managers who are struggling with the subject of synchronization and provide an engineering reference for those that need to consider synchronization in NGN. The market applications that are driving the development of packet network synchronization and timing architectures are also discussed. This book provides a wide audience with everything they need to know when researching, implementing, buying and deploying packet synchronization architectures in telecommunication networks. Contents 1. Network Evolutions, Applications and Their Synchronization Requirements. 2. Synchronization Technologies. 3. Synchronization Network Architectures in Packet Networks. 4. Synchronization Design and Deployments. 5. Management and Monitoring of Synchronization Networks. 6. Security Aspects Impacting Synchronization. 7. Test and Measurement Aspects of Packet Synchronization Networks. Appendix 1.Standards in Telecom Packet Networks Using Synchronous Ethernet and/or IEEE 1588. Appendix 2. Jitter Estimation by Statistical Study (JESS) Metric Definition. About the Authors Jean-Loup Ferrant worked for Alcatel and Alcatel-Lucent until he retired in 2009, then he continued being Rapporteur of ITU-T SG15Q13 sponsored by Calnex Solutions. Mike Gilson is a Technical Specialist for BT on timing and synchronization based at Adastral Park, Martlesham Heath, UK. He represents BT on several standards bodies. Sébastien Jobert is an R&D expert on synchronization, QoS and performance of telecom networks at France Télécom Orange Labs, Lannion, France. Michael Mayer is an active contributor to ITU-T standards and a consultant in timing and synchronization. Laurent Montini is a Technical Leader, based in France, and working in the Corporate Consulting Team within the Research and Advanced Development organization at Cisco. Michel Ouellette is V.P. of Engineering at Iometrix in San Francisco, California, USA, specializing in conformance testing of packet network technologies such as Carrier Ethernet 2.0, MPLS, IEEE1588, SyncE. Silvana Rodrigues is Director of System Engineering at IDT in Ottawa, Canada. She represents IDT on several synchronization standards committees. Stefano Ruffini is the synchronization expert representing Ericsson on various standardization bodies. He works in Pisa, Italy in the Research & Innovation Team within the IP & Broadband Development Unit at Ericsson.
This book summarizes the key Quality of Service technologies deployed in telecommunications networks: Ethernet, IP, and MPLS. The QoS of the network is made up of two parts: fault and resource management. Network operation quality is among the functions to be fulfilled in order to offer QoS to the end user. It is characterized by four parameters: packet loss, delay, jitter or the variation of delay over time, and availability. Resource management employs mechanisms that enable the first three parameters to be guaranteed or optimized. Fault management aims to ensure continuity of service.
The greatest impediment in navigating this river is, that both banks are inhabited by savages of the Cashibo nation, who are cannibals, and who subsist on human flesh: they are not in amity with any other nation. But it would be easy to remove this impediment, and render this important river serviceable to the export of the produce of these countries.
My purpose in the following study has been to record, with all useful detail, the events of French occupancy in the region of the Niagara and adjoining lakes; and I would here antici pate a possible criticism that my pages are overladen with details — by stating that it was a desire to know what had happened in the region during the time it was dominated by France, a desire to make the facts available for others, and an inability to find many of them in existing works, that induced me to write the narrative that follows. If I have seldom turned aside from the mere recording of events, to remark on the policies of the Powers which were rivals in the region, or on the consequences of their conduct, it is because I have felt that the truest exposition of these am bitions of courts, these failures or achievements of Ministries, lay in setting forth as simply and clearly as possible, the things that were done. The student of history, like the scientist, is on safest ground when he draws his conclusions from an as semblage of facts. Such a contribution to historical study, this work is designed to be; and those most familiar with the subject will perhaps be first to note that the narrative here offered supplements rather than duplicates existing works of wider scope. An especial aim has been, to present new matter; minimizing, so far as consistent, the narration of episodes else where adequately recorded.
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