Title :
Precoder design via approximate joint diagonalization for ricean correlated MIMO channels in STBC systems
Author :
Pandula, Shyam ; Paris, Bernd-Peter
Author_Institution :
Dept. of Electr. & Comput. Eng., George Mason Univ., Fairfax, VA
Abstract :
We present a novel linear precoder design based on the minimum pair-wise error probability (PEP) criterion for general space-time block coded (STBC) MIMO systems. The channel state information at the transmitter consists of the channel mean and transmit antenna correlation matrices. Approximate joint diagonalization reveals the "average eigenstructure" shared by the mean and correlation matrices. These average eigenvectors turn out to be the left singular vectors of the precoder matrix. The right singular vectors of the precoder matrix depend on the space-time code. The singular values correspond to the power allocated to each mode, which depends on the channel statistics and the space-time code. Precoder design examples for a non-orthogonal STBCs and simulation results are provided to illustrate the achieved performance gain.
Keywords :
MIMO communication; Rician channels; approximation theory; block codes; channel coding; eigenvalues and eigenfunctions; error statistics; matrix algebra; precoding; space-time codes; Ricean correlated MIMO channels; STBC systems; approximate joint diagonalization; average eigenstructure; channel mean; channel state information; channel statistics; minimum pair-wise error probability; precoder design; precoder matrix; space-time block coded MIMO systems; Channel state information; MIMO; Pairwise error probability; Performance gain; Power system modeling; Space time codes; Statistical distributions; Statistics; Transmitters; Transmitting antennas;
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
DOI :
10.1109/CISS.2008.4558683
