Title :
Design of optimal orthogonal linear codes in MIMO systems for MMSE receiver
Author :
Liu, Jing ; Jian-Kang hang ; Wong, K. Max
Author_Institution :
Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada
Abstract :
In this paper, we present a design of linear codes which improves the bit error rate (BER) performance for multiple-input multiple-output (MIMO) communication systems, under a flat-fading environment, in which the channel information is unknown for the transmitter but known at the receiver. Recently, space-time codes have been designed to achieve capacity and/or minimize the overall mean square error. Our codes here simultaneously achieve the lower bound of BER, the upper bound of the overall signal to interference plus noise ratio (SINR) and the lower bound of substream minimum mean square error. Our code structure is orthogonal in both overall and individual senses.
Keywords :
MIMO systems; error statistics; fading channels; least mean squares methods; linear codes; radio receivers; space-time codes; BER lower bound; MIMO systems; MMSE receiver; SINR upper bound; channel information; flat-fading environment; optimal orthogonal linear codes; space-time codes; substream minimum mean square error; Bit error rate; Communication systems; Diversity methods; MIMO; Maximum likelihood detection; Mean square error methods; Receiving antennas; Signal to noise ratio; Space time codes; Transmitters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326929
