Fixed SINR Solutions for the MIMO Wiretap Channel

Date Added: Aug 2009
Format: PDF

This paper studies the use of artificial interference in reducing the likelihood that a message transmitted between two multi-antenna nodes is intercepted by an undetected eavesdropper. Unlike previous work that assumes some prior knowledge of the eavesdropper's channel and focuses on the information theoretic concept of secrecy capacity, the authors also consider the case where no information regarding the eavesdropper is present, and they use the relative Signal-to-Interference-plus-Noise-Ratio (SINR) of a single transmitted data stream as their performance metric.