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As the Internet Becomes Increasingly Heterogeneous, the Issue of Congestion Control becomes Ever More Important.


DUBLIN, Ireland -- Research and Markets (http://www.researchandmarkets.com/reports/c24579) has announced the addition of Theory and Applications of OFDM (Orthogonal Frequency Division Multiplexing) A digital transmission technique that uses a large number of carriers spaced apart at slightly different frequencies.  and CDMA (Code Division Multiple Access) A method for transmitting simultaneous signals over a shared portion of the spectrum. The foremost application of CDMA is the digital cellular phone technology from QUALCOMM that operates in the 800 MHz band and 1.9 GHz PCS band. : Wideband Wireless Communications wireless communications

System using radio-frequency, infrared, microwave, or other types of electromagnetic or acoustic waves in place of wires, cables, or fibre optics to transmit signals or data.
 to their offering

As the Internet becomes increasingly heterogeneous, the issue of congestion control
This article concerns telecommunications traffic. For road traffic, see traffic congestion.


Congestion control concerns controlling traffic entry into a telecommunications network, so as to avoid congestive collapse by attempting to avoid
 becomes ever more important. In order to maintain good network performance, mechanisms must be provided to prevent the network from being congested con·gest·ed
adj.
Affected with or characterized by congestion.


congested ENT adjective Referring to a boggy blood-filled tissue. See Nasal congestion.
 for any significant period of time. Michael Welzl describes the background and concepts of Internet congestion control, in an accessible and easily comprehensible format. Throughout the book, not just the how, but the why of complex technologies including the Transmission Control Protocol (TCP (1) (Transmission Control Protocol) The reliable transport protocol within the TCP/IP protocol suite. TCP ensures that all data arrive accurately and 100% intact at the other end. ) and Active Queue Management Active Queue Management is a technique of preventing congestion in packet-switched networks.

Algorithms:
  • Random early detection
See also
  • Network congestion avoidance
  • Explicit Congestion Notification (ECN)
 are explained. The text also gives an overview of the state-of-the-art in congestion control research and an insight into the future.

This book presents comprehensive, easy-to-read documentation on the advanced topic of congestion control without heavy maths. It aims to give a thorough understanding of the evolution of Internet congestion control: how TCP works, why it works the way it does, and why some congestion control concepts failed for the Internet. The book explains the Chiu/Jain vector diagrams and introduces a new method of using these diagrams for analysis, teaching & design. It elaborates on how the theory of congestion control impacts on the practicalities of service delivery and includes an appendix with examples/problems to assist learning. Alos provided is an accompanying website with Java tools for teaching congestion control, as well as examples, links to code and projects/bibliography. This invaluable text will provide academics and researchers in computer science, electrical engineering electrical engineering: see engineering.
electrical engineering

Branch of engineering concerned with the practical applications of electricity in all its forms, including those of electronics.
 and communications networking, as well as students on advanced networking and Internet courses, with a thorough understanding of the current state and future evolution of Internet congestion control. Network administrators and Internet service and applications providers will also find it a comprehensive, accessible self-teach tool.

The aim of this book is to enable the reader to develop a sound knowledge of wideband communications, such as OFDM, applied in digital audio broadcasting Digital radio. It is the digital successor to analog AM and FM radio. See HD Radio and DAB. , and CDMA, the foundation of third generation mobile communications. As this is a fast growing field, graduates of engineering programmes as well as practising engineers should be familiar with the principles of wideband communications, particularly of OFDM and CDMA in connection with mobile radio channels. Thus, a textbook is necessary that provides a far-reaching treatise beginning from fundamentals to modern applications.

Focusing on relevant items, the book is intended to be rigorous, however readable. The fundamentals at the beginning of the book is reduced to a measure that suits the needs of further considerations and derivations, i.e. should not and can not replace textbooks specialising in digital communications or error-correcting coding etc. Whilst working in industry, the authors were active in the fields of mobile communications (GSM) and digital audio broadcasting (DAB) and have gained a thorough insight while contributing to different digital communication systems in connection with mobile radio channels. The authors felt there was the distinct need for this book through observing the continuous growth of telecommunications and information technology, which has resulted in expanding data transfer and in a need for increased data rate and bandwidth, and the forthcoming new communication systems featuring ever more complex modulation and demodulation demodulation: see modulation.


See demodulate.

(communications) demodulation - To recover the signal from the carrier. For example, in a radio broadcast using amplitude modulation the audio signal is transmitted as the mean amplitude of a
 techniques. As a result of lecturing at universities in this field the demand for such a textbook has become apparent.

For more information visit http://www.researchandmarkets.com/reports/c24579
COPYRIGHT 2005 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2005, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:Sep 21, 2005
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