Efficient channel-adaptive MIMO detection using just-acceptable error rate

I. Wei Lai; Gerd Ascheid; Heinrich Meyr; Tzi Dar Chiueh

doi:10.1109/TWC.2010.101810.091129

Efficient channel-adaptive MIMO detection using just-acceptable error rate

I. Wei Lai^*, Gerd Ascheid, Heinrich Meyr, Tzi Dar Chiueh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

This paper proposes a new concept of multiple-input multiple-output (MIMO) detection, aiming at minimizing the average computational cost. The detection methods are adapted according to the estimated channel state information to deliver just-acceptable error rate (JAER) performance. Error rate models for two popular MIMO detection algorithms are derived given the channel matrix. From these models, a channel-adaptive-MIMO (CA-MIMO) receiver with detector-switching strategies is proposed. Simulation results demonstrate that the proposed CA-MIMO detector meets the JAER criterion efficiently. Compared with the sophisticated Sphere Search (SS) MIMO detector, the average saving at moderate signal-to-noise ratio (SNR) is around 58% to 72%, depending on different modulation alphabets. At high SNR, the CA-MIMO detector almost always switch to Zero-Forcing (ZF) detection, where the complexity is several orders lower than the SS detector.

Original language	English
Article number	5608473
Pages (from-to)	73-83
Number of pages	11
Journal	IEEE Transactions on Wireless Communications
Volume	10
Issue number	1
DOIs	https://doi.org/10.1109/TWC.2010.101810.091129
Publication status	Published - 2011 Jan
Externally published	Yes

Keywords

MIMO detection
OFDM
error probability
just-acceptable error rate (JAER)
maximum likelihood
sphere search
zero-forcing

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/TWC.2010.101810.091129

Cite this

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title = "Efficient channel-adaptive MIMO detection using just-acceptable error rate",

abstract = "This paper proposes a new concept of multiple-input multiple-output (MIMO) detection, aiming at minimizing the average computational cost. The detection methods are adapted according to the estimated channel state information to deliver just-acceptable error rate (JAER) performance. Error rate models for two popular MIMO detection algorithms are derived given the channel matrix. From these models, a channel-adaptive-MIMO (CA-MIMO) receiver with detector-switching strategies is proposed. Simulation results demonstrate that the proposed CA-MIMO detector meets the JAER criterion efficiently. Compared with the sophisticated Sphere Search (SS) MIMO detector, the average saving at moderate signal-to-noise ratio (SNR) is around 58% to 72%, depending on different modulation alphabets. At high SNR, the CA-MIMO detector almost always switch to Zero-Forcing (ZF) detection, where the complexity is several orders lower than the SS detector.",

keywords = "MIMO detection, OFDM, error probability, just-acceptable error rate (JAER), maximum likelihood, sphere search, zero-forcing",

author = "Lai, {I. Wei} and Gerd Ascheid and Heinrich Meyr and Chiueh, {Tzi Dar}",

note = "Funding Information: This work was supported in part by the National Science Council, Taiwan, under Grant no. NSC 99-2219-E-002 -018, the Ministry of Education, Taiwan, under Excellent Research Projects of National Taiwan University, 99R80304, and the UMIC Research Centre, RWTH Aachen University.",

year = "2011",

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AU - Meyr, Heinrich

AU - Chiueh, Tzi Dar

N1 - Funding Information: This work was supported in part by the National Science Council, Taiwan, under Grant no. NSC 99-2219-E-002 -018, the Ministry of Education, Taiwan, under Excellent Research Projects of National Taiwan University, 99R80304, and the UMIC Research Centre, RWTH Aachen University.

PY - 2011/1

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N2 - This paper proposes a new concept of multiple-input multiple-output (MIMO) detection, aiming at minimizing the average computational cost. The detection methods are adapted according to the estimated channel state information to deliver just-acceptable error rate (JAER) performance. Error rate models for two popular MIMO detection algorithms are derived given the channel matrix. From these models, a channel-adaptive-MIMO (CA-MIMO) receiver with detector-switching strategies is proposed. Simulation results demonstrate that the proposed CA-MIMO detector meets the JAER criterion efficiently. Compared with the sophisticated Sphere Search (SS) MIMO detector, the average saving at moderate signal-to-noise ratio (SNR) is around 58% to 72%, depending on different modulation alphabets. At high SNR, the CA-MIMO detector almost always switch to Zero-Forcing (ZF) detection, where the complexity is several orders lower than the SS detector.

AB - This paper proposes a new concept of multiple-input multiple-output (MIMO) detection, aiming at minimizing the average computational cost. The detection methods are adapted according to the estimated channel state information to deliver just-acceptable error rate (JAER) performance. Error rate models for two popular MIMO detection algorithms are derived given the channel matrix. From these models, a channel-adaptive-MIMO (CA-MIMO) receiver with detector-switching strategies is proposed. Simulation results demonstrate that the proposed CA-MIMO detector meets the JAER criterion efficiently. Compared with the sophisticated Sphere Search (SS) MIMO detector, the average saving at moderate signal-to-noise ratio (SNR) is around 58% to 72%, depending on different modulation alphabets. At high SNR, the CA-MIMO detector almost always switch to Zero-Forcing (ZF) detection, where the complexity is several orders lower than the SS detector.

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Efficient channel-adaptive MIMO detection using just-acceptable error rate

Abstract

Keywords

ASJC Scopus subject areas

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