Title :
A MIMO-beamforming scheme for frequency selective channels
Author :
Gai, Jing ; Hefnawi, Mostafa
Author_Institution :
Dept. of Electr. & Comput. Eng., Royal Mil. Coll. of Canada, Kingston, Ont., Canada
Abstract :
In this paper, we design a multiple input multiple output (MIMO) beamforming system for frequency selective fading channels (FSFC). The system is based on a blind code filtering adaptive beamformer at the base station and the Alamouti´s transmit diversity at the mobile users. The system performance is evaluated by simulation in terms of bit error rates (BER) and beam patterns. It is shown that, in flat and severe FSFCs, the proposed hybrid system significantly outperforms MIMO systems without beamforming.
Keywords :
MIMO systems; adaptive codes; adaptive filters; array signal processing; channel coding; diversity reception; error statistics; fading channels; Alamouti diversity transmission; BER; FSFC; MIMO; adaptive beamformer; beam pattern; bit error rate; blind code filtering; frequency selective fading channel; multiple input multiple output system; Adaptive arrays; Antenna arrays; Array signal processing; Directive antennas; Fading; Filtering; Frequency; MIMO; Military computing; OFDM; Adaptive-beamforming; MIMO; code-filtering approach; space-time coding; transmit diversity;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1618165
