TY - GEN
T1 - Bidirectional fractionally-spaced decision feedback equalizer based on soft outputs combination
AU - Xi, Junyi
AU - Yan, Shefeng
AU - Xu, Lijun
AU - Tian, Jing
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/8/31
Y1 - 2015/8/31
N2 - The bidirectional fractionally-spaced decision feedback equalizer (DFE) based on the soft outputs combination is proposed. Without any channel estimation, the fractionally-spaced DFE effectively compensates for any phase distortion and suppresses the error propagation. Compared to conventional methods, the soft outputs combining scheme involving the log likelihood ratios (LLRs) of two DFEs outputs running in opposite directions achieves much better performance in diversity gain. The simulation results demonstrate that the proposed method outperforms the conventional bidirectional DFE by 2∼4 dB over Proakis B channel.
AB - The bidirectional fractionally-spaced decision feedback equalizer (DFE) based on the soft outputs combination is proposed. Without any channel estimation, the fractionally-spaced DFE effectively compensates for any phase distortion and suppresses the error propagation. Compared to conventional methods, the soft outputs combining scheme involving the log likelihood ratios (LLRs) of two DFEs outputs running in opposite directions achieves much better performance in diversity gain. The simulation results demonstrate that the proposed method outperforms the conventional bidirectional DFE by 2∼4 dB over Proakis B channel.
KW - Bidirectional operation
KW - decision feedback equalizer
KW - fractionally-spaced
KW - soft outputs combination
KW - underwater acoustic communications
UR - http://www.scopus.com/inward/record.url?scp=84957607607&partnerID=8YFLogxK
U2 - 10.1109/ChinaSIP.2015.7230544
DO - 10.1109/ChinaSIP.2015.7230544
M3 - Conference contribution
AN - SCOPUS:84957607607
T3 - 2015 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2015 - Proceedings
SP - 948
EP - 952
BT - 2015 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2015
Y2 - 12 July 2015 through 15 July 2015
ER -