基于对称性译码方案的设计  

A Symmetry-based Decoder Design

作　　者：刘亚娟[1] 

机构地区：[1]宜宾学院物理与电子工程学院,四川宜宾644000

出　　处：《内江师范学院学报》2015年第10期14-17,共4页Journal of Neijiang Normal University

摘　　要：在分析原有Alamouti编译码的原理基础上,提出了一种基于星座集对称性的译码方案.该方案能够降低原最大似然(ML)译码方案的计算量,并利用Matlab软件仿真验证了新的译码方案能够获得与原ML译码方案相同的差错性能.在高信噪比下,新的译码方案的差错性能优于原有译码方案.Based on analysis of the principle of Alamouti coding and decoding, a new decoding scheme, based on the symmetry of constellation, is proposed. The new scheme can reduce the calculated amount of calculation of the Alamouti decoding （Maximum Likelihood （ML） decoding）. The Matlab software simulation results show that the new scheme can achieve the same BER performance as the old ML decoding scheme. And the new decoding scheme is better in terms of error performance than the old ML decoding scheme at high SNR.

关 键 词：ALAMOUTI 最大似然 星座集 

分 类 号：TN929.5[电子电信—通信与信息系统]