Distributed precoding for network MIMO

Winston W.L. Ho, Tony Q.S. Quek, Sumei Sun

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

2 Citations (Scopus)

Abstract

Network MIMO, in which base stations cooperate and coordinate through a centralized design, is an attractive technology that promises higher spectral efficiency and lower inter-cell interference. However, such performance gain comes at the cost of extensive exchange of signal information (SI), channel state information (CSI), and coordinated precoding information over backhaul links. In this paper, we propose a distributed precoding strategy for network MIMO which does not require explicit exchange of SI and CSI among the cooperating base stations. Instead, each base station derives its own precoder to simultaneously minimize the out-of-cell interference as well as maximize the intra-cell sum rate. A robust design is also proposed, to address CSI imperfectness, and which recovers some of the rate reduction due to the CSI uncertainty.

Original languageEnglish
Title of host publication2010 IEEE International Conference on Communications, ICC 2010
DOIs
Publication statusPublished - 2010
Event2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa
Duration: 2010 May 232010 May 27

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Other

Other2010 IEEE International Conference on Communications, ICC 2010
Country/TerritorySouth Africa
CityCape Town
Period10-05-2310-05-27

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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