On secrecy rate analysis of MIMO wiretap channel aided by a cooperative jammer with channel estimation error

Shunya Iwata, Tomoaki Ohtsuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider Multiple-input multiple-output (MIMO) wiretap channel with one transmitter, one receiver, one cooperative jammer, and one eavesdropper, where each node equips with multiple antennas. Eigenbeam-space division multiplexing (E-SDM) and cooperative jamming are known as the techniques improving secrecy rate. E-SDM enables the transmitter and the legitimate receiver to communicate with each other in parallel using channel state information (CSI) known to them to maximize the legitimate receiver's mutual information. On the other hand, cooperative jamming is to jam only the eavesdropper to degrade eavesdropper's mutual information. However, co-channel interference and residual interference from the cooperative jammer are caused by channel estimation error, which degrades legitimate receiver's mutual information. How these interference influence on the secrecy rate has not been clarified. In this paper, we derive lower and upper bounds on secrecy rate using legitimate receiver's mutual information in the presence of channel estimation error and eavesdropper's mutual information who uses minimum mean square error (MMSE) receiver. We analyze the effect of co-channel interference and residual interference from the cooperative jammer on the secrecy rate.

Original languageEnglish
Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages906-910
Number of pages5
Volume2015-December
ISBN (Print)9781467367820
DOIs
Publication statusPublished - 2015 Dec 1
Event26th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015 - Hong Kong, China
Duration: 2015 Aug 302015 Sep 2

Other

Other26th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015
CountryChina
CityHong Kong
Period15/8/3015/9/2

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Iwata, S., & Ohtsuki, T. (2015). On secrecy rate analysis of MIMO wiretap channel aided by a cooperative jammer with channel estimation error. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC (Vol. 2015-December, pp. 906-910). [7343426] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC.2015.7343426