Subcarrier Allocation for Physical-Layer Security in Cooperative OFDMA Networks

被引：1
|
作者：
Cai, Chunxiao [1 ]
Cai, Yueming [1 ,2 ]
Yang, Weiwei [1 ]
机构：
[1] PLA Univ Sci & Technol, Inst Commun Engn, Nanjing 210007, Jiangsu, Peoples R China
[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2011年 / E94B卷 / 12期
关键词：
physical-layer security; cooperative OFDMA networks; amplify-and-forward; subcarrier pairing;
D O I：
10.1587/transcom.E94.B.3387
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：3387 / 3390
页数：4
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