A Novel Approach for VBLAST System Decoding Algorithm
Wei Kong · Journal of Nanjing Institute of Posts and Telecommunications · 2005
The spectrum efficiency of VBLAST system is very high,but performance of VBLAST system is very poor.In this paper,iterative signal processing(ISP) algorithm is introduced.The ISP algorithm takes advantage of the maximum available diversity to improve the initial data estimate obtained by the ZF algorithm in order to improve the performance of VBLAST system.Then an improved ISP algorithm is presented by combining the ISP algorithm with an improved algorithm with less complexity.And simulation results show that the complexity of the improved ISP algorithm is decreased greatly,and the performance of the improved ISP algorithm is only decreased a little.Therefore,the improved ISP algorithm is more suitable for a practical system.