A Novel Detection Algorithm using the Sorted QR Decomposition based on Log-Likelihood Ratio in V-BLAST Systems

摘要：

In this paper, we propose a novel detection algorithm using Log-Likelihood Ratio (LLR) to detect signals in V-BLAST systems. This algorithm utilizes the sorted QR decomposition (SQRD) of the channel matrix, and applies LLR to determine the order of detection. Simulation results show that the proposed algorithm provides a better performance than the conventional SQRD with a few additional computations. Approximately, the average BER performance of our algorithm is better than that of the conventional SQRD algorithm by 6dB for BPSK and by 2dB for QPSK respectively at 10-3 target BER.

作者: Hyunseok Lee Hyoungsuk Jeon Jihwan Choi Wonsop Kim Jongsub Cha Hyuckjae Lee

作者单位: School of Engineering Information and Communications University (ICU) 119 Munjiro,Yuseong-gu,Daejeon,305-714,Korea

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）