Combining Sphere Decoding with M-Algorithm

摘要：

The sequence detection problem for fading channels in multiple-input multiple-output (MIMO) wireless systems is investigated. The sphere decoding (SD) algorithm provides an exact maximum-likelihood (ML) solution, while has expected worst-case complexity which is exponential in the number of symbols jointly detected. On the other hand,the M-algorithm (MA) is a suboptimal solution. Its complexity is linear in the product of the list number and the number of symbols jointly detected. We combined the sphere-constrained search strategy of SD with the M-constrained search principle of the MA. The resulting algorithms can achieve good performance in term of bit error rate (BER) while lower complexity.

作者: Jianping Zheng Baoming Bai Xinmei Wang

作者单位: State Key Lab of ISN, Xidian University, Xian, Shaanxi, 710071 P.R.China

会议类型: 国际会议

会议名称: 2006年IEEE信息理论国际会议(Proceedings of 2006 IEEE Information Theory Workshop ITW06)

会议地点: 成都

会议语种:英文

页码: 175-178

在线出版日期: 2006-10-22（万方平台首次上网日期，不代表论文的发表时间）