Title :
Explicit Solution of Worst-Case Secrecy Rate for MISO Wiretap Channels With Spherical Uncertainty
Author :
Li, Jiangyuan ; Petropulu, Athina P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rutgers-The State Univ. of New Jersey, New Brunswick, NJ, USA
fDate :
7/1/2012 12:00:00 AM
Abstract :
A multiple-input single-output (MISO) wiretap channel model is considered, in which a multi-antenna source communicates with a single-antenna destination in the presence of one single-antenna eavesdropper. It is assumed that both the channel to the destination and the channel to the eavesdropper contain spherical uncertainty. The problem of finding the optimal input covariance that maximizes the worst-case secrecy rate subject to a sum power constraint is studied, and an explicit expression for the maximum worst-case secrecy rate is provided.
Keywords :
MIMO communication; antenna arrays; wireless channels; MISO wiretap channel model; maximum worst-case secrecy rate; multiantenna source; multiple-input single-output wiretap channel model; optimal input covariance; single-antenna destination; single-antenna eavesdropper; spherical uncertainty; sum power constraint; worst-case secrecy rate explicit solution; Channel estimation; Covariance matrix; Security; Transmitting antennas; Uncertainty; Vectors; Channel uncertainty; MISO wiretap channel; secrecy rate; worst-case secrecy rate;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2012.2192111
