基于安全保护域的增强型多点协作传输机制

doi:10.11999/JEIT170478

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Abstract The existing researches on Coordinated Multi-Point transmission (CoMP) secure transmission in heterogeneous cellular networks mainly focus on improving the quality of the main channel to enhance security. However, CoMP also makes the average distance between base station and eavesdropper close which makes the security threat more severe. Based on secrecy guard zone, an enhanced CoMP policy is proposed in this paper. Then, the connection outage probability, secrecy outage probability and secrecy throughput are analyzed. Furthermore, the transmission power and power allocation factor are designed very carefully to maximize the secrecy throughput. Simulation results show that compared with conventional CoMP policy, the proposed policy can not only achieve non-zero secrecy throughput when faced with severe security threats (i.e. for larger eavesdropper density), but also improve the secrecy throughput of 76.1% at most when faced with small security threats (i.e. for smaller eavesdropper density).

Key words： Heterogeneous cellular networks Physical layer security Secrecy guard zone Coordinated Multi-Point transmission (CoMP) Artificial noise

Received: 17 May 2017 Published: 01 November 2017

PACS:

TN92

Fund:The Program for Science and Technology Development of Henan Province (152102210013), The National 863 Program of China (2015AA01A708), The National Natural Science Foundation of China (61701538, 61171108, 61471396)

Corresponding Authors: WANG Bing E-mail: wangbing_xd@163.com

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	HUANG Kaizhi
	WANG Bing
	XU Xiaoming
	KANG Xiaolei
	ZHANG Bo

Cite this article:

HUANG Kaizhi,WANG Bing,XU Xiaoming等. An Enhanced Coordinated Multipoint Transmission Policy Based on Secrecy Guard Zone[J]. JEIT, 2018, 40(1): 108-115.

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http://jeit.ie.ac.cn/EN/10.11999/JEIT170478 OR http://jeit.ie.ac.cn/EN/Y2018/V40/I1/108

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