Multi-antenna Detection Technology

This paper introduces the multi-antenna detection technology and principle of multiple detection algorithms, as well as simulation results analysis.This paper adopts multiple Space-Time Signal Processing technology, eg. typical detection methods, including ML and MAP of non-linear detection technology, and QR, ZF and MMSE of linear detection technology. It focuses on High-performance multi-antenna detection technology-EM algorithm, introducing its principle, property and V-BLAST oriented application.Discussion is focused on simulations for different detection algorithms, emphasizes on performances of EM algorithms distinguish by different primary estimation. The impact of number of transmitting and receiving antennas are analyzed in the end.It proves that interaction deletion and interaction counteraction technology of V-BLAST detection in MIMO is very promising for the improvement of down-link receiver performance, system volume and system coverage.