Title :
Channel-eigenvector invariant space time constellations
Author :
Shi, Jun ; Wesel, Richard D.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
29 Nov.-3 Dec. 2004
Abstract :
A channel-eigenvector invariant space-time constellation (CEI-STC) is a set of matrices such that the product of any pairwise difference matrix and its complex conjugate transpose is a scalar matrix. The pairwise error probability of a multi-antenna system equipped with the CEI-STC does not depend on the eigenvectors of the channel matrix. It may, however, depend on the eigenvalues of the channel. The maximum cardinality of a CEI-STC whose entries are restricted to a finite set is studied. A lower bound and an upper bound on the maximum cardinality are obtained.
Keywords :
antenna arrays; eigenvalues and eigenfunctions; matrix algebra; receiving antennas; space-time codes; telecommunication channels; transmitting antennas; CEI-STC; cardinality bounds; channel eigenvalues; channel matrix eigenvectors; channel-eigenvector invariant space time constellations; finite set CEI-STC entries; maximum cardinality; multi-antenna system; pairwise difference matrix-complex conjugate transpose product; pairwise error probability; scalar matrix; Channel state information; Eigenvalues and eigenfunctions; Fading; MIMO; Mutual information; Pairwise error probability; Receiving antennas; Transmitters; Transmitting antennas; Upper bound;
Conference_Titel :
Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE
Print_ISBN :
0-7803-8794-5
DOI :
10.1109/GLOCOM.2004.1378003
