分布式MIMO系统线形小区天线位置优化研究

Antenna Port Placement Optimization of Distributed MIMO System in Linear Cell

对于研究分布式MIMO(Multiple-Input Multiple-Output)系统线形小区基站侧天线端口的位置优化问题具有很重要的现实意义。以最大化小区平均遍历容量为目标函数,研究了分布式MIMO系统中基站侧天线位置的最优分布问题。根据仿真结果可得出如下结论:基于粒子群智能优化算法的次优搜索可以有效解决该类优化问题;对天线最优位置产生影响的主要因素包括:用户位置的分布、基站天线的布局方式以及基站侧天线端口的数目等。

The research on the antenna port（AP） placement optimization of distributed multiple-input multiple-output（DMIMO）system in a linear cell has a very important practical significance. It discusses the optimal placement problem of base station antennas in DMIMO systems to maximize the cell average ergodic capacity. In the light of simulation results, it can be concluded that： the search based on Particle Swarm Optimization（PSO） can solve the optimization problem effectively. On the other hand, the main factors that affect the optimal antenna location include： the distribution of the user＇s location, the layout of the base station antennas and the number of antenna ports, and so on.