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Secure Communication and Cooperation in Interference-Limited Wireless Networks

2015
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Release : 2015
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Book Synopsis Secure Communication and Cooperation in Interference-Limited Wireless Networks by : German Bassi

Download or read book Secure Communication and Cooperation in Interference-Limited Wireless Networks written by German Bassi. This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: Dans cette thèse, nous menons une étude dans le cadre de la théorie de l'information sur deux questions importantes de la communication sans fil : l'amélioration du débit de données dans les réseaux avec interférence grâce à la coopération entre utilisateurs et le renforcement de la sécurité des transmissions à l'aide d'un signal de rétroaction.Dans la première partie de la thèse, nous nous concentrons sur le modèle le plus simple qui intègre à la fois l'interférence et la coopération, le canal à relais et interférence ou IRC (Interference Relay Channel). Notre objectif est de caractériser dans un nombre fixe de bits la région de capacité du IRC gaussien. À cette fin, nous dérivons une nouvelle limite supérieure de la capacité et deux stratégies de transmission. La limite supérieure est notamment obtenue grâce à une extension non triviale que nous proposons, de la classe de canaux semi-déterministe et injective à l'origine dérivée par Telatar et Tse pour le canal à interférence.Dans la seconde partie, nous étudions le canal avec espion et rétroaction généralisée ou WCGF (Wiretap Channel with Generalized Feedback). Notre objectif est de développer une stratégie de transmission générale qui englobe les résultats existants pour les différents modèles de rétroaction trouvés dans la littérature. À cette fin, nous proposons deux stratégies de transmission différentes sur la capacité du WCGF sans mémoire. Nous dérivons d'abord une stratégie qui est basée sur le codage source-canal conjoint. Nous introduisons ensuite une seconde stratégie où le signal de rétroaction est utilisé pour générer une clé secrète qui permet de chiffrer le message partiellement ou totalement.

Communications in Interference Limited Networks

2016-02-04 Technology & Engineering
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Release : 2016-02-04
Genre : Technology & Engineering
Kind : eBook
Book Rating : 409/5 ( reviews)

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Book Synopsis Communications in Interference Limited Networks by : Wolfgang Utschick

Download or read book Communications in Interference Limited Networks written by Wolfgang Utschick. This book was released on 2016-02-04. Available in PDF, EPUB and Kindle. Book excerpt: This book offers means to handle interference as a central problem of operating wireless networks. It investigates centralized and decentralized methods to avoid and handle interference as well as approaches that resolve interference constructively. The latter type of approach tries to solve the joint detection and estimation problem of several data streams that share a common medium. In fact, an exciting insight into the operation of networks is that it may be beneficial, in terms of an overall throughput, to actively create and manage interference. Thus, when handled properly, "mixing" of data in networks becomes a useful tool of operation rather than the nuisance as which it has been treated traditionally. With the development of mobile, robust, ubiquitous, reliable and instantaneous communication being a driving and enabling factor of an information centric economy, the understanding, mitigation and exploitation of interference in networks must be seen as a centrally important task.

Physical Layer Security in Wireless Cooperative Networks

2017-08-31 Technology & Engineering
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Release : 2017-08-31
Genre : Technology & Engineering
Kind : eBook
Book Rating : 636/5 ( reviews)

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Book Synopsis Physical Layer Security in Wireless Cooperative Networks by : Li Wang

Download or read book Physical Layer Security in Wireless Cooperative Networks written by Li Wang. This book was released on 2017-08-31. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview for physical layer security in wireless cooperative networks, including fundamental concepts, typical solutions, and some recent achievements. It investigates the secrecy performance with respect to time reversal transmission and multi-antenna spatial modulation techniques. Both of which are proposed as effective physical layer processing schemes in wireless multipath channel environment. Resource allocation strategies to enhance secrecy performance in D2D communications are also discussed in this book. It contributes to formulating user social behaviors and utilizing social characteristics to improve the secrecy performance in wireless cooperative networks. This book not only analyzes the secrecy enhancement with certain techniques, but also pursues to find the relationships or tradeoffs among the secrecy performance, energy consumption, channel conditions, and other essential factors in wireless communications. This book targets researchers and professionals specializing in electronic engineering, computer science,wireless communications and networks. Advanced level students in electrical engineering and computer science will also find this book useful as a secondary text.

Interference Management in Wireless Networks

2018-02-22 Technology & Engineering
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Release : 2018-02-22
Genre : Technology & Engineering
Kind : eBook
Book Rating : 794/5 ( reviews)

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Book Synopsis Interference Management in Wireless Networks by : Venugopal V. Veeravalli

Download or read book Interference Management in Wireless Networks written by Venugopal V. Veeravalli. This book was released on 2018-02-22. Available in PDF, EPUB and Kindle. Book excerpt: Learn about an information-theoretic approach to managing interference in future generation wireless networks. Focusing on cooperative schemes motivated by Coordinated Multi-Point (CoMP) technology, the book develops a robust theoretical framework for interference management that uses recent advancements in backhaul design, and practical pre-coding schemes based on local cooperation, to deliver the increased speed and reliability promised by interference alignment. Gain insight into how simple, zero-forcing pre-coding schemes are optimal in locally connected interference networks, and discover how significant rate gains can be obtained by making cell association decisions and allocating backhaul resources based on centralized (cloud) processing and knowledge of network topology. Providing a link between information-theoretic analyses and interference management schemes that are easy to implement, this is an invaluable resource for researchers, graduate students and practicing engineers in wireless communications.

Cooperation in Wireless Networks: Principles and Applications

2006-07-25 Technology & Engineering
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Release : 2006-07-25
Genre : Technology & Engineering
Kind : eBook
Book Rating : 118/5 ( reviews)

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Book Synopsis Cooperation in Wireless Networks: Principles and Applications by : Frank H. P. Fitzek

Download or read book Cooperation in Wireless Networks: Principles and Applications written by Frank H. P. Fitzek. This book was released on 2006-07-25. Available in PDF, EPUB and Kindle. Book excerpt: Cooperation in Wireless Networks: Principles and Applications covers the underlying principles of cooperative techniques as well as several applications demonstrating the use of such techniques in practical systems. The book is written in a collaborative manner by several authors from Asia, America, and Europe. This book puts into one volume a comprehensive and technically rich appraisal of the wireless communications scene from a cooperation point of view.

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