Title :
A closed-form solution to the autocorrelation matching method for wireless MIMO communications
Author :
Luo, Hui ; Luo, Lei ; Liu, Ruey-wen
Author_Institution :
AT&T Labs.-Res., Middletown, NJ, USA
Abstract :
Wireless MIMO (multiple input multiple output) communication techniques are proposed to boost spectrum efficiency using antenna arrays so that broadband data such as multimedia signals can be transmitted over a limited bandwidth. The AM (autocorrelation matching) method is a SOS (second-order statistics) based blind MIMO-FIR equalization technique that may enable wireless MIMO communications without identifying MIMO-FIR channels. This paper presents a closed-form solution to computing the optimal zero-forcing equalizer for the AM method using the knowledge of second-order statistics of the transmitted signals and received signals. Numerical simulations are given to show the effectiveness of the AM method and the performance of the closed-form solution.
Keywords :
MIMO systems; antenna arrays; broadband networks; correlation methods; equalisers; multimedia communication; multipath channels; radio networks; source separation; AM; MIMO-FIR channel; MIMO-FIR equalization technique; SOS; antenna array; autocorrelation matching method; broadband data; closed-form solution; multimedia signal; multiple input multiple output; optimal zero-forcing equalizer; received signal; second order statistics; spectrum efficiency; transmitted signal; wireless MIMO communication; Antenna arrays; Autocorrelation; Bandwidth; Blind equalizers; Broadband antennas; Closed-form solution; MIMO; Statistics; Transmitting antennas; Wireless communication;
Conference_Titel :
Multimedia Signal Processing, 2002 IEEE Workshop on
Print_ISBN :
0-7803-7713-3
DOI :
10.1109/MMSP.2002.1203328
