基于PSO-LR的多输入多输出系统预编码方案  

Preceding technique for MIMO based on PSO-LR

作　　者：张春凯[1] 

机构地区：[1]江苏食品药品职业技术学院计算机应用技术系,江苏淮安223003

出　　处：《电子技术应用》2015年第3期93-96,100,共5页Application of Electronic Technique

摘　　要：为了提高多输入多输出系统的通信质量、降低误码率,针对格基约减(Lattice Reduction,LR)算法格基优化的难题,提出一种粒子群算法优化格基约减的多输入多输出系统预编码方案(Particle Swarm Optimization-LR,PSO-LR)。该方案将初始格基置乱产生粒子群算法的初始粒子群,然后采用粒子之间的信息共享和交流操作产生性能最优的新格基,最后对算法的性能进行理论分析,并通过仿真实验测试其性能。结果表明,相对于同类其它方法 ,PSO-LR算法有效地降低多输入多输出系统通信的误码率,提高了通信质量。In order to obtain better communication results and reduce error rate of multi input muhi output wireless system, a novel preceding technique for multi input multi output based on panicle swarm algorithm optimizing lattice reduction algorithm was proposed to solve the problem of lattice reduction algorithm （PSO-LR）. In our approach, the initial lattice was scrambled to get a set of lattice, and taken as initial panicle, and then the optimal lattice was obtained by particle swarm optimization algorithm. Finally, the performance of the algorithm was tested by simulation experiments. The results show that compared with other methods, our method can effectively reduce the error rate of multi input multi output communication.

关 键 词：多输入多输出 预编码 粒子群算法 格基约减 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]