TY - GEN
T1 - Higher-order statistics based iterative space-time FIR precoder-blind equalizer
AU - Yao, Ning
AU - Kwan, Man Wai
AU - Fung, Carrson C.
AU - Kok, Chi Wah
PY - 2005
Y1 - 2005
N2 - A higher-order statistics (HOS) based iterative FIR linear blind equalizer for block based transmission over FIR MIMO channels is proposed. With the precoder-equalizer structure, the proposed blind equalization algorithm do not required a long guard period that is longer than or equal to the channel order, to be inserted in each block of transmitted signal to avoid inter-block interference. The signal transmitted during the guard period can be considered as redundancy which consumes channel bandwidth and transmission power. With the proposed algorithm, an FIR equalizer can be obtained based on the HOS of the received signal with minimal transmit redundancy required for FIR zero-forcing equalization. The simulation results showed that the proposed blind equalizer improves spectral efficiency while retaining good BER performance at high SNR. Simulation results also showed that the proposed equalizer can obtain good BER at low SNR due to the use of the HOS, which is robust towards Gaussian channel noise.
AB - A higher-order statistics (HOS) based iterative FIR linear blind equalizer for block based transmission over FIR MIMO channels is proposed. With the precoder-equalizer structure, the proposed blind equalization algorithm do not required a long guard period that is longer than or equal to the channel order, to be inserted in each block of transmitted signal to avoid inter-block interference. The signal transmitted during the guard period can be considered as redundancy which consumes channel bandwidth and transmission power. With the proposed algorithm, an FIR equalizer can be obtained based on the HOS of the received signal with minimal transmit redundancy required for FIR zero-forcing equalization. The simulation results showed that the proposed blind equalizer improves spectral efficiency while retaining good BER performance at high SNR. Simulation results also showed that the proposed equalizer can obtain good BER at low SNR due to the use of the HOS, which is robust towards Gaussian channel noise.
UR - http://www.scopus.com/inward/record.url?scp=33847630862&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2005.1599913
DO - 10.1109/ACSSC.2005.1599913
M3 - Conference contribution
AN - SCOPUS:33847630862
SN - 1424401313
SN - 9781424401314
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1024
EP - 1028
BT - Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers
T2 - 39th Asilomar Conference on Signals, Systems and Computers
Y2 - 28 October 2005 through 1 November 2005
ER -