Improving Wireless Security for Bidirectional Communication Scenarios

Author

Zhiguo Ding ; Mai Xu ; Jianhua Lu ; Fei Liu

Author_Institution

Sch. of Electr. & Electron. Eng., Newcastle Univ., Newcastle upon Tyne, UK

Volume

61

Issue

6

fYear

2012

fDate

7/1/2012 12:00:00 AM

Firstpage

2842

Lastpage

2848

Abstract

In this paper, we study how to improve wireless security for bidirectional communications. For the scenario with single-antenna nodes, effective criteria for relay and jamming node selection are developed to ensure that the probability to have nonzero secrecy rates is approaching one, given sufficient relays. For the scenario with multiple-antenna nodes, effective precoding is proposed to ensure that the mutual information obtained at the eavesdropper decreases to zero when there is a sufficient number of relays.

Keywords

antennas; precoding; probability; radiocommunication; telecommunication security; bidirectional communication scenario; eavesdropper; jamming node selection; multiple-antenna node; nonzero secrecy rate; precoding; probability; relay; single-antenna node; wireless security; Antennas; Helium; Interference; Jamming; Mutual information; Noise; Relays; Cooperative jamming; physical layer security; relay chatting; two way relaying channel;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

Conference_Location

5/1/2012 12:00:00 AM

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2012.2197032

Filename

6193236