COMPARATIVE STUDY OF SIGNAL DETECTION TECHNIQUES IN MU-MIMO

MU-MIMO is widely used over SU-MIMO due to high MIMO capacity gain, immense SNR along with great throughput, multiple user equipments and BS can have simultaneous connections and therefore, data rate improvisation that is spectral efficiency without affecting reliability of the system. Nonetheless, due to spatial multiplexing and increase in number of user equipments, complexity of signal detection increases too. In previous researches, suboptimal and optimal detection techniques such as ZF, MMSE and ML with low complexities are used for signal detection in SU-MIMO only. This paper proposes a system which used to analyse and compare the above mentioned detection techniques for MU-MIMO, where spatial multiplexing is used. The limitations of practical multiplexing gain in MU-MIMO system is overcome by spatial correlation to detect, mitigate or avoid weak channel gains.