Spatial Detection and Multistage Decoding for LST-MLC MIMO Systems

摘要

Layered space-time (LST) coding schemes based on multilevel coding (MLC) represent a good approach to achieve high bandwidth and power efficiency in wireless transmission over multiple-input multiple-output (MIMO) channels. The combination of spatial detection algorithms and multistage decoding (MSD) is required at the receiver to perform soft detection and decoding. Since the complexity of the soft detection and decoding process may be impractical for many systems, we are interested in developing low complexity schemes providing a good tradeoff between performance and complexity. In this paper we compare the performance of two different LST-MLC architectures where MSD at the receiver is combined with different suboptimal spatial detection techniques.