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I Trends in Telecommunications Technologies Trends in Telecommunications Technologies Edited by Christos J. Bouras In-Tech intechweb.org Published by In-Teh In-Teh Olajnica 19/2, 32000 Vukovar, Croatia Abstracting and non-profit use of the material is permitted with credit to the source. Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published articles. Publisher assumes no responsibility liability for any damage or injury to persons or property arising out of the use of any materials, instructions, methods or ideas contained inside. After this work has been published by the In-Teh, authors have the right to republish it, in whole or part, in any publication of which they are an author or editor, and the make other personal use of the work. © 2010 In-teh www.intechweb.org Additional copies can be obtained from: publication@intechweb.org First published March 2010 Printed in India Technical Editor: Goran Bajac Cover designed by Dino Smrekar Trends in Telecommunications Technologies, Edited by Christos J. Bouras p. cm. ISBN 978-953-307-072-8 V Preface This book is the culmination of an effort to gather world-class scientists, engineers and educators engaged in the fields of telecommunications to meet and present their latest activities. Telecommunication is the assisted transmission of signals over a distance for the purpose of communication. Having drastically transformed the human way of living, telecommunications are considered the revolution of our times, and the catalyst for present and future technological and scientific developments. Being a very active research field, new advances in telecommunications are constantly changing the landscape and introduce new capabilities and enhanced ways of communication. Literature in the field is extensive and constantly enlarged. This book therefore intends to increase the dissemination level of the latest research advances and breakthroughs by making them available to a wide audience in a compact and friendly to the user way. It furthermore aims to provide a particularly good way for experts in one aspect of the field to learn about advances made by their colleagues with different research interests. The main focus of the book is the advances in telecommunications modeling, policy, and technology. In particular, several chapters of the book deal with low-level network layers and present issues in optical communication technology and optical networks, including the deployment of optical hardware devices and the design of optical network architecture. Wireless networking is also covered, with a focus on WiFi and WiMAX technologies. The book also contains chapters that deal with transport issues, and namely protocols and policies for efficient and guaranteed transmission characteristics while transferring demanding data applications such as video. Finally, the book includes chapters that focus on the delivery of applications through common telecommunication channels such as the earth atmosphere. This book is useful for researchers working in the telecommunications field, in order to read a compact gathering of some of the latest efforts in related areas. It is also useful for educators that wish to get an up-to-date glimpse of telecommunications research and present it in an easily understandable and concise way. It is finally suitable for the engineers and other interested people that would benefit from an overview of ideas, experiments, algorithms and techniques that are presented throughout the book. ... - tailieumienphi.vn
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