Effective antenna selection in MIMO systems under spatial correlated fading

Abstract

Multiple input multiple output (MIMO) systems are considered as potential candidates for future high data rates wireless networks. However these systems present a practical problem which is the cost of hardware related to every additional antenna. In this paper, we present an effective suboptimal antenna algorithm based on frame error rate for MIMO systems. It only needs a sorted QR decomposition compared with the optimal antenna selection algorithm which requires an exhaustive search of the pseudo inverse of the channel matrix. The new algorithm achieves good performance that is very close to the optimal algorithm, decreases the computational complexity greatly, and improves the performance of the receivers. Simulation results demonstrate that the proposed antenna selection algorithm achieves excellent performance under i.i.d. channel, also the correlated.