Space-time block coded rate-adaptive modulation with uncertain SNR feedback

Youngwook Ko, Cihan Tepedelenlioglu

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

9 Scopus citations

Abstract

Channel state information (CSI) at the transmitter can be used to adapt transmission rate or antenna gains in multi-antenna systems. However, the CSI that is fed back will get outdated if the channel is changing rapidly. We propose a rate-adaptive M-QAM technique equipped with space-time block coding with signal to noise ratio (SNR) feedback as opposed to full channel feedback. We obtain closed-form expressions for the average BER and average throughput for our scheme. We illustrate the performance gains achievable through the rate adaptation and possibly delayed SNR feedback. Our numerical results illustrate the immunity of our proposed technique to error caused by time-delayed feedback.

Original languageEnglish (US)
Title of host publicationConference Record of the Asilomar Conference on Signals, Systems and Computers
EditorsM.B. Matthews
Pages1032-1036
Number of pages5
Volume1
StatePublished - 2003
EventConference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 9 2003Nov 12 2003

Other

OtherConference Record of the Thirty-Seventh Asilomar Conference on Signals, Systems and Computers
CountryUnited States
CityPacific Grove, CA
Period11/9/0311/12/03

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Hardware and Architecture

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  • Cite this

    Ko, Y., & Tepedelenlioglu, C. (2003). Space-time block coded rate-adaptive modulation with uncertain SNR feedback. In M. B. Matthews (Ed.), Conference Record of the Asilomar Conference on Signals, Systems and Computers (Vol. 1, pp. 1032-1036)