Enhanced groupwise detection with a new receive combiner for spatial multiplexing MIMO systems

Sung Hyun Moon; Jeongsik Jeong; Heunchul Lee; Inkyu Lee

doi:10.1109/TCOMM.2010.09.090135

Enhanced groupwise detection with a new receive combiner for spatial multiplexing MIMO systems

Sung Hyun Moon, Jeongsik Jeong, Heunchul Lee, Inkyu Lee

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

14 Citations (Scopus)

Abstract

In this letter, we propose a new groupwise receive combiner design for multiple-input multiple-output spatial multiplexing systems. The conventional group detection (GD) suffers from a considerable performance loss since the noise components are not taken into account. The output signal-to-interference- plus-noise ratio (SINR) is defined in each subgroup in order to consider both the desired signal and noise statistics. Adopting the real-valued representation, we provide an optimal receive combiner which maximizes the SINR with a general group size. The simulation results show that the proposed scheme achieves a large performance gain over the conventional GD in coded systems. Also, when combining with near-optimal detection algorithms such as sphere decoder, the proposed GD scheme offers a comparable performance with significant reduced complexity.

Original language	English
Article number	5577800
Pages (from-to)	2511-2515
Number of pages	5
Journal	IEEE Transactions on Communications
Volume	58
Issue number	9
DOIs	https://doi.org/10.1109/TCOMM.2010.09.090135
Publication status	Published - 2010 Sept

Bibliographical note

Funding Information:
Paper approved by D. J. Love, the Editor for MIMO and Adaptive Techniques of the IEEE Communications Society. Manuscript received August 4, 2009; revised January 14, 2010. S.-H. Moon and I. Lee are with the School of Electrical Engineering, Korea University, Seoul, Korea (e-mail: {shmoon, inkyu}@korea.ac.kr). J. Jeong is with Samsung Electronics, Suwon, Korea (e-mail: [email protected]). H. Lee is with the Future IT Research Center, Samsung Advanced Institute of Technology (SAIT), Korea (e-mail: [email protected]). This paper was presented in part at the Vehicular Technology Conference (VTC) in Calgary, Canada, September 2008. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2010-0017909). Digital Object Identifier 10.1109/TCOMM.2010.09.090135

Keywords

Multiple-input multiple-output (MIMO)
group detection
maximum-likelihood (ML) detection
spatial multiplexing

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCOMM.2010.09.090135

Cite this

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abstract = "In this letter, we propose a new groupwise receive combiner design for multiple-input multiple-output spatial multiplexing systems. The conventional group detection (GD) suffers from a considerable performance loss since the noise components are not taken into account. The output signal-to-interference- plus-noise ratio (SINR) is defined in each subgroup in order to consider both the desired signal and noise statistics. Adopting the real-valued representation, we provide an optimal receive combiner which maximizes the SINR with a general group size. The simulation results show that the proposed scheme achieves a large performance gain over the conventional GD in coded systems. Also, when combining with near-optimal detection algorithms such as sphere decoder, the proposed GD scheme offers a comparable performance with significant reduced complexity.",

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Enhanced groupwise detection with a new receive combiner for spatial multiplexing MIMO systems

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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