Cooperative joint precoding for relay enhanced cellular system over Nakagami-m fading channels

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we introduce the notion of a relay enhanced cellular system, where a relay station is located in the overlap area served by two base stations. We propose a cooperative joint precoding scheme in the downlink of the relay enhanced cellular system to maximize the system capacity while eliminating the interference at the mobile stations. We formulate an optimization problem to maximize the system capacity and design the multiuser precoding vectors for each base station and the relay station. We analyze the ergodic rate performance of the proposed multiuser precoding scheme over Nakagami-m fading channels. Numerical results show that the proposed scheme can effectively cancel the interference and improve the sum rate and outage performance for cell edge users.

Original languageEnglish (US)
Title of host publication2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011
Pages208-213
Number of pages6
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011 - Shanghai, China
Duration: Oct 10 2011Oct 12 2011

Other

Other2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011
CountryChina
CityShanghai
Period10/10/1110/12/11

Keywords

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

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

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