Cooperative joint precoding in a downlink cellular system with shared relay: Design and performance evaluation

Jae Woo Kwon, Ki Hong Park, Young-Chai Ko, Hong Chuan Yang

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In this paper, we investigate a relay enhanced cellular system, where a relay station is located in the overlap area served by two base stations. We propose cooperative joint precoding schemes for the downlink transmission of such relay enhanced cellular system to maximize the system capacity while minimizing the interference at both the relay station and the mobile stations. We formulate the optimization problems to maximize the system capacity and design the multiuser precoding vectors at each base station and the relay station. We quantify the ergodic rate performance of the proposed multiuser precoding schemes through statistical analysis. The extensively derived ergodic expressions will facilitate the accurate performance evaluation of the proposed transmission schemes. Numerical results show that the proposed schemes can effectively cancel the interference and improve the sum rate and the outage performance for cell edge users.

Original languageEnglish
Article number6294503
Pages (from-to)3462-3473
Number of pages12
JournalIEEE Transactions on Wireless Communications
Volume11
Issue number10
DOIs
Publication statusPublished - 2012 Sep 10

Fingerprint

Precoding
Cellular Systems
Base stations
Relay
Performance Evaluation
Outages
Statistical methods
Interference
Maximise
Cancel
Statistical Analysis
Overlap
Quantify
Design
Optimization Problem
Numerical Results
Cell

Keywords

  • Communication with relay
  • cooperative joint precoding
  • ergodic rate
  • Nakagami-m fading

ASJC Scopus subject areas

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

Cite this

Cooperative joint precoding in a downlink cellular system with shared relay : Design and performance evaluation. / Kwon, Jae Woo; Park, Ki Hong; Ko, Young-Chai; Yang, Hong Chuan.

In: IEEE Transactions on Wireless Communications, Vol. 11, No. 10, 6294503, 10.09.2012, p. 3462-3473.

Research output: Contribution to journalArticle

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