摘要
为了提升信号检测算法的性能,提出了一种改进型V-BLAST算法,在最先检测层保留了K个与判决统计量欧氏距离最近的星座点,其他各层依旧采用V-BLAST算法,从而降低了误码传播的可能性。通过仿真,设定了K的取值,并得到结论:K取值适当时,该改进型算法比传统的V-BLAST在性能上有了明显提升。
LTE system uses OFDM.MIMO and other key technologies. During signal detection ,the conventional V-BLAST algorithm exists the spread of error, resulting in a decline in performance. In order to enhance the performance of signal detection algorithms, this paper presents an improved V-BLAST algorithm. When it is firstly detected, this layer retains the K constellation points which are nearest to statistics judgment, and the other layers are still using V-BLAST algorithm. This algorithm reduces the possibility of transmission error. Through the simulation, the K value is set, and the conclusion can be gotten： if the K is set the appropriate value, the improved algorithm can be improved more significantly than the traditional V-BLAST in performance.
出处
《电子技术应用》
北大核心
2010年第11期128-131,共4页
Application of Electronic Technique
基金
国家科技重大专项:TD-LTE无线综合测试仪表开发(2009ZX3002-009)
