Robust user pairing algorithm under channel estimation errors for uplink virtual multiple-input multiple-output systems

Y. Rui, H. Hu, H. Yi, Hsiao-Hwa Chen

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Employing user pairing schemes in uplink virtual multiple-input multiple-output (V-MIMO) systems can significantly improve system capacity owing to multi-user diversity. Most of the existing user pairing algorithms were developed under the assumption that a scheduler always possesses the perfect channel state information (CSI). In this paper, taking into account the effects of channel estimation error (CEE), the authors propose a robust user pairing algorithm based on a closed-form average sum rate under CEE. In addition, the authors further propose an adaptive user selection scheme as an effort to maximise the sum rates owing to the rate constraint under CEE. The gain of the proposed method is shown in simulation results.

Original languageEnglish
Pages (from-to)318-323
Number of pages6
JournalIET Communications
Volume6
Issue number3
DOIs
Publication statusPublished - 2012 Feb 14

Fingerprint

Channel estimation
Channel state information

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

@article{6463a4e781104bbeb38b3fa834237d12,
title = "Robust user pairing algorithm under channel estimation errors for uplink virtual multiple-input multiple-output systems",
abstract = "Employing user pairing schemes in uplink virtual multiple-input multiple-output (V-MIMO) systems can significantly improve system capacity owing to multi-user diversity. Most of the existing user pairing algorithms were developed under the assumption that a scheduler always possesses the perfect channel state information (CSI). In this paper, taking into account the effects of channel estimation error (CEE), the authors propose a robust user pairing algorithm based on a closed-form average sum rate under CEE. In addition, the authors further propose an adaptive user selection scheme as an effort to maximise the sum rates owing to the rate constraint under CEE. The gain of the proposed method is shown in simulation results.",
author = "Y. Rui and H. Hu and H. Yi and Hsiao-Hwa Chen",
year = "2012",
month = "2",
day = "14",
doi = "10.1049/iet-com.2010.0972",
language = "English",
volume = "6",
pages = "318--323",
journal = "IET Communications",
issn = "1751-8628",
publisher = "Institution of Engineering and Technology",
number = "3",

}

Robust user pairing algorithm under channel estimation errors for uplink virtual multiple-input multiple-output systems. / Rui, Y.; Hu, H.; Yi, H.; Chen, Hsiao-Hwa.

In: IET Communications, Vol. 6, No. 3, 14.02.2012, p. 318-323.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Robust user pairing algorithm under channel estimation errors for uplink virtual multiple-input multiple-output systems

AU - Rui, Y.

AU - Hu, H.

AU - Yi, H.

AU - Chen, Hsiao-Hwa

PY - 2012/2/14

Y1 - 2012/2/14

N2 - Employing user pairing schemes in uplink virtual multiple-input multiple-output (V-MIMO) systems can significantly improve system capacity owing to multi-user diversity. Most of the existing user pairing algorithms were developed under the assumption that a scheduler always possesses the perfect channel state information (CSI). In this paper, taking into account the effects of channel estimation error (CEE), the authors propose a robust user pairing algorithm based on a closed-form average sum rate under CEE. In addition, the authors further propose an adaptive user selection scheme as an effort to maximise the sum rates owing to the rate constraint under CEE. The gain of the proposed method is shown in simulation results.

AB - Employing user pairing schemes in uplink virtual multiple-input multiple-output (V-MIMO) systems can significantly improve system capacity owing to multi-user diversity. Most of the existing user pairing algorithms were developed under the assumption that a scheduler always possesses the perfect channel state information (CSI). In this paper, taking into account the effects of channel estimation error (CEE), the authors propose a robust user pairing algorithm based on a closed-form average sum rate under CEE. In addition, the authors further propose an adaptive user selection scheme as an effort to maximise the sum rates owing to the rate constraint under CEE. The gain of the proposed method is shown in simulation results.

UR - http://www.scopus.com/inward/record.url?scp=84859378455&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859378455&partnerID=8YFLogxK

U2 - 10.1049/iet-com.2010.0972

DO - 10.1049/iet-com.2010.0972

M3 - Article

AN - SCOPUS:84859378455

VL - 6

SP - 318

EP - 323

JO - IET Communications

JF - IET Communications

SN - 1751-8628

IS - 3

ER -