关键词: 分布式多输入多输出（MIMO）, 端口选择, 天线选择, 中断容量, 低复杂度

Abstract: The number of antennas in distributed MIMO system is much larger than that in centralized MIMO system.Therefore classic antenna selection algorithms with excellent capacity performance are too complex to be employed.To deal with the problem，an enhanced elimination antenna selection algorithm based on incremental port selection is proposed，which is on the basis of the distributed structure.This algorithm decreases the antenna search range via dynamic port selection whose number limit is set，and then deletes antennas useless for capacity according to greedy principle.Simulation results show that the capacity performance of the proposed algorithm is very close to that of the optimal algorithm with the computation complexity greatly reduced.The algorithm also performs well under the heavily correlated channel.

Key words: distributed Multiple Input Multiple Output（MIMO）, port selection, antenna selection, outage capacity, low complexity