Secure Communication Over Finite State Multiple-Access Wiretap Channel With Delayed Feedback

被引：16
|
作者：
Dai, Bin [1 ,2 ]
Ma, Zheng [1 ]
Xiao, Ming [3 ,4 ]
Tang, Xiaohu [1 ]
Fan, Pingzhi [1 ]
机构：
[1] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210018, Peoples R China
[3] Royal Inst Technol, Sch Elect Engn, S-11428 Stockholm, Sweden
[4] Royal Inst Technol, ACCESS Linnaeus Ctr, S-11428 Stockholm, Sweden
来源：
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2018年 / 36卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Delayed feedback; finite-state Markov channel; multiple-access channel; secrecy capacity region; wiretap channel; TAP CHANNEL; CONFIDENTIAL MESSAGES; BROADCAST CHANNELS; SIDE INFORMATION; MARKOV CHANNELS; FADING CHANNELS; CAPACITY; INTERFERENCE; SECRECY; REGION;
D O I：
10.1109/JSAC.2018.2824938
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：
Recently, it has been shown that the time-varying multiple-access channel (MAC) with perfect channel state information (CSI) at the receiver and delayed feedback CSI at the transmitters can be modeled as the finite state MAC (FS-MAC) with delayed state feedback, where the time variation of the channel is characterized by the statistics of the underlying state process. To study the fundamental limit of the secure transmission over multi-user wireless communication systems, we re-visit the FS-MAC with delayed state feedback by considering an external eavesdropper, which we call the finite state multipleaccess wiretap channel (FS-MAC-WT) with delayed feedback. The main contribution of this paper is to show that taking full advantage of the delayed channel output feedback helps to increase the secrecy rate region of the FS-MAC-WT with delayed state feedback. Moreover, by a degraded Gaussian fading example, we show the effects of feedback delay and channel memory on the secrecy sum rate of the FS-MAC-WT with delayed feedback.
引用
收藏
页码：723 / 736
页数：14
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