A virtual successive detection for cooperative MU-MIMO systems with reduced CSI

Akihito Taya, Satoshi Denno, Koji Yamamoto, Masahiro Morikura, Daisuke Umehara, Hidekazu Murata, Susumu Yoshida

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

Abstract

In this paper, we propose a receiver using the concept of a "virtual channel" and Turbo codes for multiuser multiple-input multiple-output (MU-MIMO) systems with cooperating transmitters. In order to reduce feedback information from receivers, a precoding method with reduced channel state information (CSI) is needed. Although signals interfere with each other in such a system, the proposed receiver enables high-speed transmission by detecting signals iteratively. In the proposed iterative scheme, soft information is exchanged between virtual channel detectors and Turbo decoders to improve the bit error rate (BER) performance. We evaluate the performance of the proposed receiver in systems with two transmitters, each equipped with four antennas, and two receivers, each equipped with two antennas. The results show that the proposed receiver can improve the system performance owing to the iteration scheme.

Original languageEnglish
Title of host publicationIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
DOIs
Publication statusPublished - Aug 20 2012
EventIEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Yokohama, Japan
Duration: May 6 2012Jun 9 2012

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

OtherIEEE 75th Vehicular Technology Conference, VTC Spring 2012
CountryJapan
CityYokohama
Period5/6/126/9/12

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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  • Cite this

    Taya, A., Denno, S., Yamamoto, K., Morikura, M., Umehara, D., Murata, H., & Yoshida, S. (2012). A virtual successive detection for cooperative MU-MIMO systems with reduced CSI. In IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings [6239970] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2012.6239970