TY - GEN
T1 - A block adaptive frequency domain MIMO DFE for wideband channels
AU - Kekatos, Vassilis
AU - Berberidis, Kostas
AU - Rontogiannis, Athanasios A.
PY - 2007
Y1 - 2007
N2 - The equalization of MIMO frequency selective channels is a challenging task due to the increased filter lengths required and the presence of interstream interference. In wideband systems where high delay spread channels arise and long transmission bursts are employed, adaptive equalization is necessary. In this work, we develop an adaptive MIMO DFE for wideband time varying systems. To reduce computational complexity and accelerate convergence rate, the equalizer is fully implemented in the frequency domain, while an inherent causality problem is efficiently solved through an iterative scheme. As verified by simulations, the proposed method offers a good trade off in terms of complexity and convergence, compared to other related adaptive algorithms.
AB - The equalization of MIMO frequency selective channels is a challenging task due to the increased filter lengths required and the presence of interstream interference. In wideband systems where high delay spread channels arise and long transmission bursts are employed, adaptive equalization is necessary. In this work, we develop an adaptive MIMO DFE for wideband time varying systems. To reduce computational complexity and accelerate convergence rate, the equalizer is fully implemented in the frequency domain, while an inherent causality problem is efficiently solved through an iterative scheme. As verified by simulations, the proposed method offers a good trade off in terms of complexity and convergence, compared to other related adaptive algorithms.
KW - Adaptive equalizers
KW - MIMO systems
UR - http://www.scopus.com/inward/record.url?scp=34547506025&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547506025&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2007.366506
DO - 10.1109/ICASSP.2007.366506
M3 - Conference contribution
AN - SCOPUS:34547506025
SN - 1424407281
SN - 9781424407286
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - III197-III200
BT - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
T2 - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Y2 - 15 April 2007 through 20 April 2007
ER -