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Chapter

Physical Layer Security in OFDMA Networks

Chapter

Physical Layer Security in OFDMA Networks

DOI link for Physical Layer Security in OFDMA Networks

Physical Layer Security in OFDMA Networks book

Physical Layer Security in OFDMA Networks

DOI link for Physical Layer Security in OFDMA Networks

Physical Layer Security in OFDMA Networks book

Edited ByXiangyun Zhou, Lingyang Song, Yan Zhang
BookPhysical Layer Security in Wireless Communications

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Edition 1st Edition
First Published 2013
Imprint CRC Press
Pages 16
eBook ISBN 9780429099984

ABSTRACT

Orthogonal frequency division multiple access (OFDMA) has a major role in the evolution of broadband wireless networks. It enables efficient transmission of a wide variety of data traffic by optimizing power, subcarrier, or bit allocation among different users. Secrecy or private information communications to mobile users are often needed in present and future wireless systems. Hence, it is essential to consider the security demand in radio resource allocation of OFDMA networks. This chapter presents an overview of resource allocation techniques in OFDMA-based wireless networks for providing physical layer security. In particular, a general framework of power and subcarrier allocation in OFDMA downlink networks where users requiring secrecy and nonsecrecy messages coexist is introduced in detail. Through theoretical analysis, several insights into resource allocation with secrecy requirement are provided. At last, possible directions for future research are also given.

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