Paper Info
Title
Low Complexity Maximum-Likelihood Based QRD-M for MIMO Systems with S-QAM or APSK
Abstract
In this work, we propose a rotation-based transformation method and apply it to the QRD-M detector for MIMO systems with the commonly used square quadrature amplitude modulation (S-QAM) or amplitude and phase-shift keying (APSK). The QRD-M detector based on proposed rotation transformation principle method achieves 50% computation reduction for MIMO systems with 4-QAM compared with the original QRDM algorithm (25% for those with 16-QAM) without sacrificing any performance. The proposed rotated QRD-M method achieves performance close to the maximum-likelihood (ML) detector with computational complexity lower than the linear detector for MIMO systems with 4-QAM. The underlying principle of the proposed rotation-based transformation method can be extended to S-QAM (or APSK) modulated MIMO systems with employing sphere decoding (SD), list sphere decoding (LSD), list sequential sphere decoder (LISS) (or other quasi-ML methods), and the full ML based methods in a straightforward manner.
Year
DOI
Venue
2010
10.1109/ICC.2010.5502454
ICC
Keywords
Field
DocType
sphere decoding (sd),4-qam,amplitude shift keying,amplitude-shift keying,list sphere decoding (lsd),phase-shift keying,m-algorithm,list sequential sphere decoder,qrd-m detector,rotation-based transformation,apsk,low complexity maximum-likelihood based qrd-m,list sphere decoding,16-qam,maximum likelihood detection,multiple-input and multiple-output (mimo),list sequential sphere decoder (liss),computational complexity,amplitude and phase-shift keying (apsk),s-qam,mimo communication,maximum-likelihood detector,quadrature amplitude modulation,square quadrature amplitude modulation (s-qam),maximum-likelihood (ml),square quadrature amplitude modulation,mimo systems,decoding,measurement,phase detection,detectors,maximum likelihood,signal detection,multiplexing,mimo,phase shift keying,16 qam
Quadrature amplitude modulation,Computer science,Control theory,Amplitude and phase-shift keying,QAM,Algorithm,MIMO,Real-time computing,Decoding methods,Phase detector,Detector,Phase-shift keying
Conference
Volume
Issue
ISSN
null
null
1550-3607
ISBN
Citations 
PageRank 
978-1-4244-6402-9
2
0.48
References 
Authors
10
1
Name
Order
Citations
PageRank
Xiaoming Dai110021.23