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Subcarrier Allocation for Physical-Layer Security in Cooperative OFDMA Networks Chunxiao CAI Yueming CAI Weiwei YANG Publication IEICE TRANSACTIONS on Communications Vol.E94-B No.12 pp.3387-3390 Publication Date: 2011/12/01 Online ISSN: 1745-1345 DOI: 10.1587/transcom.E94.B.3387 Print ISSN: 0916-8516 Type of Manuscript: Special Section LETTER (Special Section on Cooperative Communications for Cellular Networks) Category: Keyword: physical-layer security, cooperative OFDMA networks, amplify-and-forward, subcarrier pairing, Full Text: PDF(246.9KB)>>
Summary: Secrecy on the physical layer is receiving increased research interest due to its theoretical and practical importance. In this letter, a subcarrier allocation scheme is proposed for physical-layer security in cooperative orthogonal frequency division multiple access (OFDMA) networks that use the Amplify-and-Forward (AF) strategy. We consider the subcarrier pairing and assignment to maximize overall system rates subject to a secrecy level requirement. Monte Carlo simulations are carried out to validate our analysis. | |||||
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