A virtual layered space-frequency receiver for multiuser MIMO-OFDM systems

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

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

1 Citation (Scopus)

Abstract

In this paper, we propose a virtual layered spacefrequency receiver with an ordered successive detector for multiuser multiple-input multiple-output (MU-MIMO) systems where multiple transmitters cooperate with one another. The proposed receiver enables high-speed transmission in the systems even if the transmitters know only partial channel state information (CSI). Actually, the receiver shows such superior performance when the concept of "virtual channel" is applied to cooperative MU-MIMO systems. Moreover, we propose an iterative detection scheme for the receiver; in this scheme, some signals from the Viterbi decoder are fed back to the ordered successive detector. The proposed iterative scheme helps improve the transmission speed when the number of cooperating transmitters is increased. We evaluate the performance of MIMO systems in which the transmitters have four antennas each and two users have two antennas. The receiver can double the transmission speed at the cost of 3 dB in E b/N 0 at a BER of 10 -4. Furthermore, the receiver can triple the transmission speed at the cost of 7 dB in E b/N 0 at a BER of 10 -4. When the system has three transmitters, we observe an error floor. However, the proposed iterative method can suppress the error to a value below BER = 10 -7.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventIEEE 74th Vehicular Technology Conference, VTC Fall 2011 - San Francisco, CA, United States
Duration: Sep 5 2011Sep 8 2011

Other

OtherIEEE 74th Vehicular Technology Conference, VTC Fall 2011
CountryUnited States
CitySan Francisco, CA
Period9/5/119/8/11

Fingerprint

MIMO-OFDM
Multiuser MIMO
MIMO systems
Orthogonal frequency division multiplexing
Transmitters
Receiver
Transmitter
Multiple-input multiple-output (MIMO) Systems
Antenna
Antennas
Detectors
Detector
Iterative Detection
Virtual Channel
Channel state information
Iterative methods
MIMO Systems
Partial Information
Channel State Information
Iterative Scheme

ASJC Scopus subject areas

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

Cite this

Taya, A., Denno, S., Umehara, D., Morikura, M., Murata, H., Yamamoto, K., & Yoshida, S. (2011). A virtual layered space-frequency receiver for multiuser MIMO-OFDM systems. In IEEE Vehicular Technology Conference [6092886] https://doi.org/10.1109/VETECF.2011.6092886

A virtual layered space-frequency receiver for multiuser MIMO-OFDM systems. / Taya, Akihito; Denno, Satoshi; Umehara, Daisuke; Morikura, Masahiro; Murata, Hidekazu; Yamamoto, Koji; Yoshida, Susumu.

IEEE Vehicular Technology Conference. 2011. 6092886.

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

Taya, A, Denno, S, Umehara, D, Morikura, M, Murata, H, Yamamoto, K & Yoshida, S 2011, A virtual layered space-frequency receiver for multiuser MIMO-OFDM systems. in IEEE Vehicular Technology Conference., 6092886, IEEE 74th Vehicular Technology Conference, VTC Fall 2011, San Francisco, CA, United States, 9/5/11. https://doi.org/10.1109/VETECF.2011.6092886
Taya A, Denno S, Umehara D, Morikura M, Murata H, Yamamoto K et al. A virtual layered space-frequency receiver for multiuser MIMO-OFDM systems. In IEEE Vehicular Technology Conference. 2011. 6092886 https://doi.org/10.1109/VETECF.2011.6092886
Taya, Akihito ; Denno, Satoshi ; Umehara, Daisuke ; Morikura, Masahiro ; Murata, Hidekazu ; Yamamoto, Koji ; Yoshida, Susumu. / A virtual layered space-frequency receiver for multiuser MIMO-OFDM systems. IEEE Vehicular Technology Conference. 2011.
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