Adaptive antenna scaling for multi-user MIMO downlink zero-forcing transmissions with finite rate feedback

Ki Hong Park, Young-Chai Ko, Hong Chuan Yang, James S. Kim

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

Abstract

In this paper, we introduce a new zero-forcing beamforming (ZFBF) transmission scheme for multi-user MIMO Gaussian channel with finite rate feedback. With this transmission scheme, the base station adaptively utilizes transmit antennas according to the channel status and the number of active users to control the multiuser interference. We show through selected numerical results that our proposed scheme can achieve remarkable sum-rate improvement compared to other schemes with fixed transmit antennas.

Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference, WCNC
Pages661-665
Number of pages5
Publication statusPublished - 2008 Sep 18
EventIEEE Wireless Communications and Networking Conference, WCNC 2008 - Las Vegas, NV, United States
Duration: 2008 Mar 312008 Apr 3

Other

OtherIEEE Wireless Communications and Networking Conference, WCNC 2008
CountryUnited States
CityLas Vegas, NV
Period08/3/3108/4/3

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Keywords

  • And user selection algorithms
  • Broadcast channel
  • Finite rate feedback
  • Zero forcing beamforming

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Park, K. H., Ko, Y-C., Yang, H. C., & Kim, J. S. (2008). Adaptive antenna scaling for multi-user MIMO downlink zero-forcing transmissions with finite rate feedback. In IEEE Wireless Communications and Networking Conference, WCNC (pp. 661-665). [4489153]