Implementación en Matlab de la técnica de detección por grupos en receptores MIMO para el estándar 4G.

Abstract

In this research, we propose the survey and implementation of group detection (GD) technique for multiple input multiple output Single Carrier Frequency Division Multiple Access (MIMO SC-FDMA) systems used in the Long Term Evolution-Advanced (LTE-A) standard. The analysis of the channel model and detection of signals for wireless communication systems is carried out. The linear receivers such as the minimum mean square error (MMSE), used in the uplink (UL) in LTE-A, and zero-forcing (ZF) have a low computational complexity, and a poor performance, there being a difference with non-linear receivers which have high performance at the expense of a high computational complexity, impossible to implement for its commercialization. The results of experiments carried out in Matlab show that the receivers with GD increase the proportional performance to the size of the group, in addition to get an acceptable compromise between performance and computational complexity.