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

Melda Yuksel, Elza Erkip
2008 2008 42nd Annual Conference on Information Sciences and Systems  
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
more » ... 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.
doi:10.1109/ciss.2008.4558598 dblp:conf/ciss/YukselE08 fatcat:6f723hmqsnb3ffrqsfabyfhega