Title :
BER Performance of MIMO-SM with Zero-Forcing in Spatially Correlated Ricean Fading
Author :
Saleh, Hassan A Abou ; Hamouda, Walaa
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC
Abstract :
The probability of bit error of multiple-input multiple-output spatial multiplexing (MIMO-SM) systems employing linear zero-forcing (ZF) receivers is addressed. In this paper, we first present a near exact approximation for the average bit error rate (BER) of each substream with quaternary phase-shift keying (QPSK) in spatially correlated Ricean distributed channels. Then a closed-form expression for the optimal transmit correlation coefficient of two-input two-output spatial multiplexing (TITO-SM) systems is derived. Extensive simulations are presented to validate the accuracy of the analytical results.
Keywords :
MIMO communication; Rician channels; correlation methods; error statistics; quadrature phase shift keying; radio receivers; space division multiplexing; BER performance; MIMO-SM system; QPSK; TITO-SM system; bit error rate; closed-form expression; linear zero-forcing receiver; multiple-input multiple-output spatial multiplexing system; quaternary phase-shift keying; spatially correlated Ricean fading channel; two-input two-output spatial multiplexing system; Analytical models; Bit error rate; Closed-form solution; Computer errors; Fading; MIMO; Mathematical model; Quadrature phase shift keying; Receiving antennas; Symmetric matrices;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073421
