Performance Evaluation of Signal Detection Techniques for Spatially Multiplexed MIMO Systems

Abstract

A considerable enhancement has been experienced in the field of broadband wireless techniques. For that reason, it is not efficient to deploy the single-input single output (SISO) scenario for meeting the demand of higher data rate acceleration any more. Thus, a major system development has been to use multiple antennas at both sides the transmitter and receiver to attain better performance based on bit error rate measurement. Multiple-input-multiple-output (MIMO) deploys multiple antennas at both ends to achieve high power and spectral efficiency. However, MIMO system comes at the cost of complexity at the recovery side. The objective of this paper is to include and evaluate various techniques of signal detections, for example; linear detection techniques and sphere decoding (SD) algorithm. Sphere detection has demonstrated an efficient means to detect the spatially multiplexed symbols. The implementation is done in MATLAB Simulation.