Soft decision-directed channel estimation for multiuser MIMO systems

Sunho Park, Jun Won Choi, Keonkook Lee, Byonghyo Shim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Multiuser multiple-input multiple-output (MU-MIMO) transmission technique based on orthogonal frequency division multiplexing (OFDM) system has been received great deal of attention in recent years due to its potential higher spectral efficiency. However, because of the coarse knowledge of channel state information at the transmitter (CSIT), co-scheduled mobile users may suffer large residual multiuser interference in MU-MIMO system. In this paper, we propose a new channel estimation technique using virtual pilot signals for the MU-MIMO OFDM systems. In a nutshell, we choose reliable data tones from both desired and interfering signals as virtual pilot signal and improves the channel estimation quality using iterative detection and decoding (IDD) scheme. We show that the proposed method achieves substantial performance gain over conventional approaches employing single user detection or multiuser detection.

Original languageEnglish
Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages95-99
Number of pages5
Volume2015-December
ISBN (Print)9781467367820
DOIs
Publication statusPublished - 2015 Dec 1
Externally publishedYes
Event26th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015 - Hong Kong, China
Duration: 2015 Aug 302015 Sep 2

Other

Other26th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2015
CountryChina
CityHong Kong
Period15/8/3015/9/2

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Park, S., Choi, J. W., Lee, K., & Shim, B. (2015). Soft decision-directed channel estimation for multiuser MIMO systems. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC (Vol. 2015-December, pp. 95-99). [7343275] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC.2015.7343275