Title :
On the performance of MIMO-OFDM systems with imperfect channel information
Author :
Torabi, Mohammad ; Soleymani, M. Reza ; Aïssa, Sonia
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
In this paper, we consider a multiple-input multiple-output OFDM (MIMO-OFDM) system and study the effects of MMSE channel estimation error on the channel capacity and BER performance of MIMO-OFDM systems, in particular, for space-frequency block coded OFDM (SFBC-OFDM). We assume that the channel is imperfectly known at the receiver within some mean-square error. It is shown that channel estimation errors decrease the channel capacity and BER performance of the MIMO-OFDM systems.
Keywords :
MIMO systems; OFDM modulation; block codes; channel capacity; channel estimation; error statistics; least mean squares methods; radio networks; BER; MIMO-OFDM systems; MMSE; channel capacity; channel estimation error; imperfect channel information; mean-square error; multiple-input multiple-output; space-frequency block codes; AWGN; Bit error rate; Channel capacity; Channel estimation; Information analysis; MIMO; OFDM; Receiving antennas; Transmitters; Wireless communication;
Conference_Titel :
Wireless Networks, Communications and Mobile Computing, 2005 International Conference on
Print_ISBN :
0-7803-9305-8
DOI :
10.1109/WIRLES.2005.1549476
