Novel codeword selection strategy for MIMO precoding with limited channel state information feedback

Kun Ju Tsai, I. Tai Lu

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

Abstract

A novel strategy codeword selection (called partial channel precoding) for channel state information (CSI) in a limited feedback scenario is proposed. Consider as an example the CSI codebook in the 3GPP LTE system of a 4 4 MIMO structure. Rather than using the traditional method of selecting the nearest codebook to the right singular vectors of the entire channel matrix, a partial match that aims to place the third and fourth signal streams near the null space of the first two receive antennas is presented. Combined with the successive interference cancellation scheme, this novel codeword selection strategy is shown to improve SINR and subsequently the frame error rate performance of a MIMO-OFDM system.

Original languageEnglish (US)
Title of host publicationRWS 2009 IEEE Radio and Wireless Symposium, Proceedings
Pages328-331
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE Radio and Wireless Symposium, RWS 2009 - San Diego, CA, United States
Duration: Jan 18 2008Jan 22 2008

Publication series

NameRWS 2009 IEEE Radio and Wireless Symposium, Proceedings

Other

Other2009 IEEE Radio and Wireless Symposium, RWS 2009
CountryUnited States
CitySan Diego, CA
Period1/18/081/22/08

Keywords

  • Limited feedback
  • Long term evolution (LTE)
  • Precoding
  • Successive interference cancellation (SIC)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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