DocumentCode
939597
Title
MIMO Detection of 16-QAM Signaling Based on Semidefinite Relaxation
Author
Yang, Yijin ; Zhao, Chunming ; Zhou, Peng ; Xu, Wei
Author_Institution
Southeast Univ., Nanjing
Volume
14
Issue
11
fYear
2007
Firstpage
797
Lastpage
800
Abstract
We propose a computationally efficient semidefinite relaxation (SDR) of the maximum likelihood (ML) detector for 16 quadrature amplitude modulation (16-QAM) in multiple-input multiple-output (MIMO) systems. The SDR stems from a variant of the ML problem, which utilizes set operation algorithms to formulate the alphabet constraint. Theoretical analysis and numerical simulations demonstrate that the proposed method can provide improved error performance as compared to some previous detectors.
Keywords
MIMO communication; maximum likelihood detection; quadrature amplitude modulation; 16-QAM signaling; MIMO detection; maximum likelihood detector; quadrature amplitude modulation; semidefinite relaxation; Maximum likelihood (ML) detection; multiple- input multiple-output (MIMO) systems; multiple-input multiple-output (MIMO) systems; semidefinite relaxation (SDR);
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/LSP.2007.901694
Filename
4358006
Link To Document