An Antenna Selection Algorithm for TDOA Location Method in Distributed Multi-Antenna System

Wireless location has received increasing attention in the last decade, and the introduction of distributed multi-antenna in 4G system has brought in extra information for high accuracy location. In this paper, a novel antenna selection algorithm in distributed multi-antenna system is proposed. By analyzing the least square error of TDOA location method and its relationship with locations of antennas utilized, factors are designed to indicate this relationship, and then we can find the most proper antennas to locate the MS. Simulation results show that the proposed antenna selection algorithm outperforms the traditional methods, which indicates our antenna selection algorithm can be applied in distributed multi-antenna systems effectively.