Revisiting the Complex Correlation in a MIMO System
Paper in proceedings, 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, Kommunikationssystem, informationsteori och antenner, Antennas

Per-Simon Kildal

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Antennas

Jan Carlsson

Chalmers, Signals and Systems, Kommunikationssystem, informationsteori och antenner, Antennas

8th European Conference on Antennas and Propagation, EuCAP 2014, The Hague, The Netherlands 6-11 April 2014

2164-3342 (ISSN)

2735 - 2739

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

More information

Created

10/8/2017