Title :
Optimal transmit covariance for MIMO channels with statistical transmitter side information
Author :
Hanlen, Leif W. ; Grant, Alex J.
Author_Institution :
Nat. ICT Australia, Canberra, ACT
Abstract :
We give an optimality condition for the input covariance for arbitrary ergodic Gaussian vector channels under the condition that the channel gains are independent of the transmit signal, the transmitter has knowledge of the channel gain probability law and the receiver has knowledge of each channel realization. Using this optimality condition, we find an iterative algorithm for numerical computation of optimal input covariance matrices
Keywords :
Gaussian channels; covariance matrices; radio transmitters; wireless channels; MIMO channels; arbitrary ergodic Gaussian vector channels; channel realization; iterative algorithm; optimal transmit covariance; optimality condition; statistical transmitter side information; Australia; Covariance matrix; Eigenvalues and eigenfunctions; Gaussian distribution; Information rates; Inspection; Iterative algorithms; MIMO; Statistics; Transmitters;
Conference_Titel :
Information Theory, 2005. ISIT 2005. Proceedings. International Symposium on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-9151-9
DOI :
10.1109/ISIT.2005.1523659
