Revisiting the Complex Correlation in a MIMO System
Paper in proceeding, 2014
It is commonly believed that a complex correlation of up to 0.5 in magnitude is negligible for multiple-input multiple-output (MIMO) performances and that the correlation affects the diversity gain or throughput only via its magnitude. In this work, we show that when the number of antenna ports is larger than two, the phase of the correlation coefficient affects the diversity gain and that even small correlation can severely degrade the throughput performance of MIMO systems with full spatial multiplexing and no diversity gain. We assume maximum ratio combining (MRC) to investigate the correlation effect on diversity gain and zero-forcing (ZF) equalizer to study the correlation effect on the MIMO throughput.
Multiple-input multiple-ouput (MIMO)
Correlation
Diversity
Maximum ratio combining (MRC)
Zero-forcing (ZF)
Throughput
Author
Chen Xiaoming
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Per-Simon Kildal
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
Jan Carlsson
Chalmers, Signals and Systems, Communication, Antennas and Optical Networks
8th European Conference on Antennas and Propagation, EuCAP 2014, The Hague, The Netherlands 6-11 April 2014
2164-3342 (ISSN)
2735 - 2739978-88-907018-4-9 (ISBN)
Areas of Advance
Information and Communication Technology
Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/EuCAP.2014.6902390
ISBN
978-88-907018-4-9