An Improved Joint Detection Approach for TD-SCDMA System Based on Lattice Reduction
This paper proposes an improved joint detection (JD) approach based on lattice reduction (LR) to promote the link performance of TD-SCDMA system. The LR aided JD transforms the system matrix to a better conditioned matrix with favorite mathematical properties so as to obtain the diversity gain. Furthermore,in order to reduce the complexity of LR,the system matrix is processed through column permutation to achieve a simple cyclically shifted block matrix. The simulation results reveal that the improved JD has 2.6 dB and 3.5 dB gain compared with the traditional JD at BER=105 respectively in the two scenarios mentioned in this paper,and particularly has distinct advantage over the traditional JD with the increase of interference.
TD-SCDMA joint detection lattice reduction
Zhang Xiaoran Zhao Hui Zheng Bin Wu Bin
Wireless Signal Processing and Network Lab,Key Lab of Universal Wireless Communications,Ministry of Wireless Signal Processing and Network Lab,Key Lab of Universal Wireless Communications,Ministry of Broadband Communication Systems Lab,Institute of Microelectronics of Chinese Academy of Sciences,Bei
国际会议
西安
英文
2346-2350
2011-12-23（万方平台首次上网日期，不代表论文的发表时间）