Diversity-multiplexing tradeoff for the multiple-antenna wire-tap channel

Author

Yuksel, Melda ; Erkip, Elza

Author_Institution

EEE Dept., TOBB-ETU, Ankara

fYear

2008

fDate

19-21 March 2008

Firstpage

618

Lastpage

623

Abstract

In this paper the fading multiple antenna (MIMO) wire-tap channel is investigated. The secret diversity gain and the secret multiplexing gain are defined. Using these definitions, the secret diversity-multiplexing tradeoff (DMT) is calculated analytically when the source node does not have transmitter side channel state information (CSI). It is shown that the wire-tapper steals degrees of freedom from the source-destination channel, and the secret DMT depends on the remaining degrees of freedom. When CSI is available at the source, unlike the case when there are no security constraints, transmitter CSI changes the secret DMT significantly.

Keywords

MIMO communication; antenna arrays; diversity reception; multiplexing; wireless channels; channel state information; diversity-multiplexing tradeoff; multiple-antenna wire-tap channel; secret diversity gain; secret multiplexing gain; source-destination channel; Broadcasting; Channel state information; Communication system security; Diversity methods; Fading; Information security; MIMO; OFDM modulation; Probability; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Sciences and Systems, 2008. CISS 2008. 42nd Annual Conference on

Conference_Location

Princeton, NJ

Print_ISBN

978-1-4244-2246-3

Electronic_ISBN

978-1-4244-2247-0

Type

conf

DOI

10.1109/CISS.2008.4558598

Filename

4558598