A Double-Directional BLAST Detection Algorithm

摘要：

Recently, the Bell Laboratory Layered space-time (BLAST) architecture with multiple transmit and multiple receiver antennas is an efficient method to realize the space-time transmission which can make full use of the rich scattering channel and can greatly increase the spectral efficiency. It has been observed that the detecting ordering is crucial for good performance to alleviate the effort of error propagation. However, the optimal ordering needs a higher computational complexity. To avoid this difficulty, we proposed a double-directional BLAST detection algorithm. It utilizes the improved square-root algorithm without the optimal ordering to detect signals in double direction, and the diversity technique to improve its BER performance. It is shown that the double-directional algorithm can achieve better bit error performance with lower complexity compared to theoriginal V-BLAST algorithm.

关键词： Double-directional V-BLAST MMSE square root MIMO system

作者: Xin Jiang Zhenghua Duan

作者单位: School of Computer and Communication Hunan University,Changsha, CHINA, 410082

会议类型: 国际会议

会议名称: 2005年无线通信、网络和移动计算国际会议

会议地点: 武汉

会议语种:英文

页码: 404-407

在线出版日期: 2005-09-23（万方平台首次上网日期，不代表论文的发表时间）