From the Publisher: Optical WDM networking technology is spearheading a bandwidth revolution in the networking infrastructure being developed for the next generation Internet. Rapid advances in optical components have...
ISBN:
(纸本)9780792378259;0792378253
From the Publisher: Optical WDM networking technology is spearheading a bandwidth revolution in the networking infrastructure being developed for the next generation Internet. Rapid advances in optical components have enabled the transition from point-to-point WDM links to all-optical networking. Optical WDM Networks: Principles and Practice presents some of the most important challenges facing the optical networking community, along with some suggested solutions. Earlier textbooks in optical networking have a narrower perspective, and rapidly advancing research has created the need for fresh and current information on problems and issues in the field. The volume editors and contributing authors have endeavoured to capture a substantial subset of the key problems and known solutions to these problems. All of the chapters are original contributions from leading international researchers. The chapters address a wide variety of topics, including the state of the art in WDM technology, physical components that make up WDM fiber-optic networks, medium access protocols, wavelength routed networks, optical access networks, network management, and performance evaluation of wavelength routing networks. The chapters also survey critical points in past research and tackle more recent problems. Practitioners and network product engineers interested in current state-of-the-art information beyond textbook-type coverage, and graduate students commencing research in this area, will appreciate the concise — and pertinent — information presented herein.
The modern wireless communication industry has put great demands on circuit designers for smaller, cheaper transceivers in the gigahertz frequency range. One tool which has assisted designers in satisfying these requi...
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ISBN:
(数字)9780306470387
ISBN:
(纸本)9780792379867
The modern wireless communication industry has put great demands on circuit designers for smaller, cheaper transceivers in the gigahertz frequency range. One tool which has assisted designers in satisfying these requirements is the use of on-chip inductiveelements (inductors and transformers) in silicon (Si) radio-frequency (RF) integrated circuits (ICs). These elements allow greatly improved levels of performance in Si monolithic low-noise amplifiers, power amplifiers, up-conversion and down-conversion mixers and local oscillators. Inductors can be used to improve the intermodulation distortion performance and noise figure of small-signal amplifiers and mixers. In addition, the gain of amplifier stages can be enhanced and the realization of low-cost on-chip local oscillators with good phase noise characteristics is made feasible. In order to reap these benefits, it is essential that the IC designer be able to predict and optimize the characteristics of on-chip inductiveelements. Accurate knowledge of inductance values, quality factor (Q) and the influence of ad- cent elements (on-chip proximity effects) and substrate losses is essential. In this book the analysis, modeling and application of on-chip inductive elements is considered. Using analyses based on Maxwells equations, an accurate and efficient technique is developed to model these elements over a wide frequency range. Energy loss to the conductive substrate is modeled through several mechanisms, including electrically induced displacement and conductive c- rents and by magnetically induced eddy currents. These techniques have been compiled in a user-friendly software tool ASITIC (Analysis and Simulation of Inductors and Transformers for Integrated Circuits).
Discussing the design, performance and implementation of access protocols, this text emphasizes how such protocols can efficiently support disparate classes of multimedia traffic. These protocols are deployed or exper...
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ISBN:
(数字)9780306473029
ISBN:
(纸本)9780792379553
Discussing the design, performance and implementation of access protocols, this text emphasizes how such protocols can efficiently support disparate classes of multimedia traffic. These protocols are deployed or experimented in various broadband wireless environments such as wireless ATM, satellite networks, mobile cellular and personal communication systems, wireless local loops, wireless local area networks, and others. Besides a comprehensive introduction and survey to the evolution of access protocols, other topics covered include: connection control and QoS provisioning; traffic load balancing techniques; developments in advanced CDMA/TDMA/OFDM systems; international standardization efforts (for example 3G, IMT 2000); emerging broadband wireless access (for example wireless ATM, satellite ATM, high-speed wireless LANs); the complete design, performance analysis, simulation and protocol verification of a generalized broadband multiple access protocol. While engineering aspects are discussed, the emphasis is on the physical understanding of access protocols, from basic proposals to the latest innovations.; Mathematical treatment is kept to a minimum, and most of the fundamental concepts are explained based on intuition and insights, supplemented by numerous illustrative figures. In addition, these concepts are expressed succinctly and concisely. Wherever possible, important references that make major contributions to the field are included for interested readers to investigate further. Latest updates and useful Web resources are posted at the book's Web site.
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