基于信泄噪比的改进预编码算法研究  

Research on an Improved Precoding Algorithm Based on SLNR

作　　者：隽静平 王军选[1] 

机构地区：[1]西安邮电大学通信与信息工程学院,陕西西安710061

出　　处：《移动通信》2014年第22期65-69,共5页Mobile Communications

基　　金：国家自然科学基金项目(61271 276);国家自然科学基金资助项目(61102047)

摘　　要：为改善用户自身天线间的干扰和信道噪声干扰对SLNR算法性能的影响,对SLNR算法进行了改进,包括两种改进算法:SLNR_ZF算法是利用ZF算法可以消除用户自身天线间干扰的作用将其引入到SLNR算法中;SLNR_MMSE算法是在SLNR_ZF算法的基础上引入规范化因子,消除噪声干扰。通过仿真结果表明,改进的两种优化算法可以有效地消除包括用户自身天线间干扰、用户间干扰和噪声干扰的多种干扰,提高小区边缘用户的吞吐量和误码率。In order to improve the impact of both the inferences of user antennas and channel noise on the performances of SLNR algorithm, two SLNR algorithms are improved in this paper. One is SLNR_ZF algorithm in which ZF method is introduced in SLNR algorithm to cancel user antenna self-interference. Another is SLNR_MMSE algorithm which introduces normalization factor based on SLNR_ZF algorithm to cancel noise interference. Simulation results show that the two improved algorithms can effectively cancel multiple kinds of inferences such as user antenna self-interference, interference of users and noise interference, as well as enhance the throughput and bit error rate of the cell edge users.

关 键 词：SLNR 协作多点传输 预编码 吞吐量 误码率 

分 类 号：TN929.53[电子电信—通信与信息系统]