AF relay assisted multiuser MIMO-DQSM downlink transmission system

This Letter presents an amplify and forward (AF) relay assisted multiuser multiple input-multiple output (MU-MIMO) downlink transmission system based on a double quadrature spatial modulation (DQSM) scheme. The authors analyse and compared the bit error rate performance of the proposed AF-MU-MIMO-DQ...

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Bibliographic Details
Published in:Electronics letters 2020-06, Vol.56 (13), p.682-684
Main Author: Castillo-Soria, F.R
Format: Article
Language:English
Subjects:
AF‐MU‐MIMO‐DQSM system
amplify and forward communication
double quadrature spatial modulation scheme
downlink transmission system
error statistics
interference suppression
MIMO communication
multiuser multiple input‐multiple output system
phase shift keying
phase shift‐keying modulation
quadrature amplitude modulation
relay networks (telecommunication)
Wireless communications
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Summary:This Letter presents an amplify and forward (AF) relay assisted multiuser multiple input-multiple output (MU-MIMO) downlink transmission system based on a double quadrature spatial modulation (DQSM) scheme. The authors analyse and compared the bit error rate performance of the proposed AF-MU-MIMO-DQSM system with its conventional counterpart AF-MU-MIMO system, which uses quadrature amplitude modulation/phase shift-keying modulation. Results show that the utilised technique can effectively cancel the interference produced by multiple users and multiple relays in the system. The proposed AF-MU-MIMO-DQSM system has up to 2 dB gain compared with the conventional system for the analysed cases.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2020.0239