The Security Performance Analysis of Analog Network Coding over Two-Way Relay Wiretap Channel

doi:10.13190/jbupt.201203.112.yuanq

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2012, Vol. 35 ›› Issue (3): 112-115.doi: 10.13190/jbupt.201203.112.yuanq

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The Security Performance Analysis of Analog Network Coding over Two-Way Relay Wiretap Channel

YUAN Quan¹，LI Hai-cheng²，ZHOU Ya-jian¹，ZHAO Ming-feng³

1 Information Security Center, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2 Department of Computer Science, Tangshan Teachers College, Hebei Tangshan 063000, China;
3 School of Computer Science & Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China

Received:2011-06-02 Revised:2012-01-06 Online:2012-06-28 Published:2012-02-29

Abstract

Abstract:

The factors influencing the achievable secrecy rate of analog network coding over twoway relay wiretap channel are analyzed. A model of wiretap channel with an eavesdropper is established, and the achievable secrecy rate is derived. By numerical simulation and analysis of special scenes, it is concluded that: when eavesdropper locates in some area, the achievable secrecy rate may be 0; by increasing the distance and angle between eavesdropper and the node, or by optimizing the power allocation, the achievable secrecy rate can be enhanced.

Key words: wiretap channel, two-way relay, analog network coding, achievable secrecy rate

CLC Number:

TN918.91

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The Security Performance Analysis of Analog Network Coding over Two-Way Relay Wiretap Channel

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