An Improved Algorithm Based on List Sequential Detector for MIMO System
改进的基于序列列表的MIMO迭代检测算法

An improved iterative detection algorithm is proposed in this paper, which introduces a new method of computing soft information based on the idea of semidefinite relaxation rather than on a list. Also a head-first list search algorithm is put forward to improve the performance of list sequential detector. Simulations show that the head-first list sequential detector outperforms the basic list sequential detector at the cost of little increasing complexity and the proposed iterative detector achieves the same performance of head-first list sequential detector but decreases the complexity.