For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
Subcarrier Allocation for Physical-Layer Security in Cooperative OFDMA Networks
Chunxiao CAI Yueming CAI Weiwei YANG
IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Cooperative Communications for Cellular Networks)
physical-layer security, cooperative OFDMA networks, amplify-and-forward, subcarrier pairing,
Full Text: PDF>>
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.