Open AccessSMLD: Enhanced MIMO‐Signal Detection for Wireless MIMO Communication Receivers
Author(s) -
Baek MyungSun,
Woo Miae,
Lim Jae Hyuck,
You YoungHwan,
Song HyoungKyu
Publication year - 2007
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.07.0206.0168
Subject(s) - mimo , computer science , reduction (mathematics) , wireless , detection theory , signal (programming language) , algorithm , real time computing , electronic engineering , channel (broadcasting) , engineering , mathematics , telecommunications , detector , geometry , programming language
This letter proposes a simplified maximum likelihood detection (SMLD) scheme to improve the detection performance of multiple‐input multiple‐output receivers. The SMLD detects V streams according to the first detected V sub‐streams. Through an ML test, the most probable stream is selected. Moreover, to detect the layer with the worst post‐detection SNR accurately, reverse ordering is applied to the SMLD. Simulation results show that the performance of the Vertical Bell Laboratories layered space‐time (V‐BLAST) system can be improved by adopting the SMLD technique. In the case of reverse ordering, the SMLD can achieve a similar ML performance with significant reduction in computational complexity.