Artificial Noise with Optimal Power Allocation in Multi-Input Single-Output Wiretap Channels

被引：0

作者：

Yang, Nan ^{[1
]}

Yuan, Jinhong ^{[1
]}

Malaney, Robert ^{[1
]}

Subramanian, Ramanan ^{[2
]}

Land, Ingmar ^{[2
]}

机构：

[1] Univ New S Wales, Sydney, NSW 2052, Australia

[2] Univ S Australia, Inst Telecommun Res, Adelaide, SA 5001, Australia

来源：

2014 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2014年

关键词：

PHYSICAL LAYER SECURITY; SECRECY CAPACITY; FADING CHANNELS; TAP CHANNEL; TRANSMISSION; COMMUNICATION;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We analyze and optimize the use of artificial noise (AN) for a predefined secrecy rate in wiretap channels with a multi-antenna transmitter, a single-antenna receiver, and a single-antenna eavesdropper. We derive a new closed-form expression for the secrecy outage probability that is independent of the channel realization. Based on this expression, we first optimize the power allocation between the information signal and the AN signal such that the secrecy outage probability is minimized. We then optimize jointly the power allocation and secrecy rate such that the secrecy throughput is maximized. As demonstrated by our analysis, the minimum secrecy outage probability requires more power to be allocated to the AN signal when the quality of the main channel quality or the eavesdropper's channel improves.

引用

页码：2184 / 2190

页数：7

共 27 条

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