Low-complexity Detector for MIMO-OFDM Coded System
This paper proposes an adaptive joint combination of the maximum likelihood detection (MLD) and MMSE detection with successive interference cancellation (MMSE-SIC) for MIMO-OFDM coded system. The coded system employs the linear convolutional code as the channel encoder, in order to deal with the severe fading. The cyclic redundancy check (CRC) is attached in the tail of the channel coder to detect whether there exists error in the detected information bits. To utilize the CRC function sufficiently, this paper proposes an adaptive joint combination of MLD and MMSE-SIC for the coded systems. The number of data streams to be detected by MLD is adaptively increased if the CRC finds some error in the detected information bits. This procedure ends when there is no error in the detected bits or the number of streams to be detected by MLD exceeds a predetermined threshold. Computer Simulation results show that the proposed scheme can achieve near-MLD performance with very low detection complexity.
MIMO-OFDM CRC low-complexity detector MLD
Lisheng Fan Yongquan Jiang
Department of Electronic Engineering, Shantou University
国际会议
2009 International Workshop on Information Security and Application(2009 信息安全与应用国际研讨会)
青岛
英文
189-192
2009-11-21（万方平台首次上网日期，不代表论文的发表时间）