TY - GEN
T1 - Soft versus hard interference cancellation in MMSE OSIC MIMO detector
T2 - 4th IEEE International Symposium on Wireless Communication Systems 2007, ISWCS'07
AU - Wang, Jun
AU - Li, Shaoqian
PY - 2007
Y1 - 2007
N2 - There are two schemes to perform interference cancellation in soft-out minimum mean square error (MMSE) ordering successive interference cancellation (OSIC) detector for channel coded multiple-input multiple-output (MIMO) system, i.e., soft interference cancellation (SIC) and maximal likelihood (ML) hard decision based interference cancellation (HDIC). In this paper, we investigated these two schemes. At first, we discussed the basic principles of soft-output MMSE OSIC MIMO detector and proposed a reduced-complexity implementation. Then, based on the post-detection effective signal-to-interference and noise ratio (SINR) of MMSE filter at each detection stage, these two schemes are compared analytically. Finally, extensive simulations are performed to validate the analysis. The results show that the SIC based soft-output MMSE OSIC MIMO detector is superior to HDIC based one and all of them are much better than the MMSE detector and conventional MMSE OSIC detector, which assumes perfect interference cancellation.
AB - There are two schemes to perform interference cancellation in soft-out minimum mean square error (MMSE) ordering successive interference cancellation (OSIC) detector for channel coded multiple-input multiple-output (MIMO) system, i.e., soft interference cancellation (SIC) and maximal likelihood (ML) hard decision based interference cancellation (HDIC). In this paper, we investigated these two schemes. At first, we discussed the basic principles of soft-output MMSE OSIC MIMO detector and proposed a reduced-complexity implementation. Then, based on the post-detection effective signal-to-interference and noise ratio (SINR) of MMSE filter at each detection stage, these two schemes are compared analytically. Finally, extensive simulations are performed to validate the analysis. The results show that the SIC based soft-output MMSE OSIC MIMO detector is superior to HDIC based one and all of them are much better than the MMSE detector and conventional MMSE OSIC detector, which assumes perfect interference cancellation.
UR - https://www.scopus.com/pages/publications/84890855511
U2 - 10.1109/ISWCS.2007.4392419
DO - 10.1109/ISWCS.2007.4392419
M3 - 会议稿件
AN - SCOPUS:84890855511
SN - 1424409799
SN - 9781424409792
T3 - Proceedings of 4th IEEE Internatilonal Symposium on Wireless Communication Systems 2007, ISWCS
SP - 642
EP - 646
BT - Proceedings of 4th IEEE Internatilonal Symposium on Wireless Communication Systems 2007, ISWCS
Y2 - 16 October 2007 through 19 October 2007
ER -