Novel adaptive codebook-based limited feedback techniques for multi-user MIMO-OFDM systems

I. Tai Lu, Jiang Chang

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

Abstract

To mitigate the sum rate ceiling problems, high-resolution quantization and feedback schemes for the channel state information (CSI) are highly demanded in multi-user (MU) multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. In this paper, we investigate three adaptive codebook-based limited feedback techniques for MU-MIMO-OFDM broadcast systems. Using the channel covariance and mean respectively, adaptive codebook techniques I and II are extensions of two adaptive codebook techniques proposed for single-user MIMO single-carrier systems. Technique III is a totally novel proposal wherein both channel covariance and mean are exploited in the adaptive codebook construction. Numerical results show that the adaptive codebook approaches have significant sum rate gain compared to the fixed codebook solution and technique III outperforms techniques I and II.

Original languageEnglish (US)
Title of host publication2010 IEEE 71st Vehicular Technology
DOIs
StatePublished - 2010
Event2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring - Taipei, Taiwan, Province of China
Duration: May 16 2010May 19 2010

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Other

Other2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring
CountryTaiwan, Province of China
CityTaipei
Period5/16/105/19/10

Keywords

  • Adaptive codebook
  • Limited feedback
  • MIMO
  • Multiuser
  • OFDM

ASJC Scopus subject areas

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

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  • Cite this

    Lu, I. T., & Chang, J. (2010). Novel adaptive codebook-based limited feedback techniques for multi-user MIMO-OFDM systems. In 2010 IEEE 71st Vehicular Technology [5493724] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2010.5493724