Achieving low-complexity maximum-likelihood detection for the 3D MIMO code

The 3D Multiple-input multiple-output (MIMO) code is a robust and efficient space-time block code (STBC) for the distributed MIMO broadcasting but suffers from high maximum-likelihood (ML) decoding complexity. In this paper, we first analyze some properties of the 3D MIMO code to show that the 3D MI...

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Veröffentlicht in:EURASIP journal on wireless communications and networking 2014-02, Vol.2014 (1), p.1-16, Article 20
Hauptverfasser: Liu, Ming, Crussière, Matthieu, Hélard, Maryline, Hélard, Jean-François
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Crussière, Matthieu
Hélard, Maryline
Hélard, Jean-François
description The 3D Multiple-input multiple-output (MIMO) code is a robust and efficient space-time block code (STBC) for the distributed MIMO broadcasting but suffers from high maximum-likelihood (ML) decoding complexity. In this paper, we first analyze some properties of the 3D MIMO code to show that the 3D MIMO code is fast decodable. It is proven that the ML decoding performance can be achieved with a complexity of O ( M 4.5 ) instead of O ( M 8 ) in quasi-static channel with M -ary square QAM modulations. Consequently, we propose a simplified ML decoder exploiting the unique properties of the 3D MIMO code. Simulation results show that the proposed simplified ML decoder can achieve much lower processing time latency compared to the classical sphere decoder with Schnorr-Euchner enumeration.
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subjects Block codes
Channels
Communications Engineering
Complexity
Computer Science
Decoders
Decoding
Engineering
Information Systems Applications (incl.Internet)
Modulation
Networking and Internet Architecture
Networks
Signal,Image and Speech Processing
Three dimensional
Wireless communication
title Achieving low-complexity maximum-likelihood detection for the 3D MIMO code
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