Soft decision feedback equalization for pre-coded FIR-MIMO systems
Document Type
Conference Proceeding
Publication Date
1-1-2002
Abstract
In this paper, it is demonstrated that decision feedback equalization (DFE) based on soft-decisions is able to outperform hard-decision DFE, with an attractive computational cost that is polynomial in the number of symbols to be recovered. A group of soft-decision feedback equalizers (SDFE) with probabilistic data association are developed for multi input multi-output (MIMO) wireless communication systems operating in time dispersive channels. Block transmissions with zero-padded precoding are employed to guarantee channel identifiablity. Computer simulations indicate that SDFE offers close-to-optimal error probability performance without incurring exponential complexity. Further improvements on these SDFE schemes promise enhanced performance at a reduced computational cost.
Publication Title
Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Recommended Citation
Tian, Z.
(2002).
Soft decision feedback equalization for pre-coded FIR-MIMO systems.
Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop,
2002-January, 594-598.
http://doi.org/10.1109/SAM.2002.1191110
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/10911