Performance Based Receive Antenna Selection Algorithm for Layered Space-Time System

Antenna selection is an effective approach to reduce RF (radio frequency) hardware cost and implementation complexity of multiple-input multiple-output systems. A subset of antennas is selected out of all available ones based on a certain criterion. Many researches on antenna selection for spatial multiplexing system focused on capacity based selection criterion, which do not necessarily optimise the system performance. In this paper, two novel error rate performance based criteria for receive antenna selection in layered space-time system are proposed. These criteria are namely the max-min and max-first layer criteria. A reduced complexity algorithm is also proposed for the max-min selection criterion. Computer simulations demonstrate that our proposed algorithms can obtain the diversity of a full system. In particular, the proposed max-min algorithm outperforms capacity based selection algorithms, while the max-first layer algorithm provides a low complexity solution to the problem