The Effect of Feedback Quantization on the Throughput of a Multiuser Diversity Scheme

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The impact of the quantization of SNR measurements on the throughput of a multiuser diversity scheme for constant-rate transmission is investigated under a block-Rayleigh fading assumption. In the downlink, each user measures its SNR, quantizes it, and feeds it back to the transmitter, which transmits a packet to the user with the highest quantized SNR. In the case of several users having the same quantized SNR, one of them is selected at random. It is concluded that using only a few quantization levels can yield a throughput that is only slightly less than the throughput obtained by using unquantized feedback.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Multiuser diversity, Cumulative distribution function (CDF)
Original languageEnglish
Title of host publicationConference Record / IEEE Global Telecommunications Conference
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages497-501
Volume1
Publication statusPublished - 2003
Publication categoryResearch
Peer-reviewedYes
EventIEEE Global Telecommunications Conference, 2003 - San Francisco, CA, United States
Duration: 2003 Dec 12003 Dec 5

Publication series

Name
Volume1

Conference

ConferenceIEEE Global Telecommunications Conference, 2003
Abbreviated titleGLOBECOM'03
CountryUnited States
CitySan Francisco, CA
Period2003/12/012003/12/05

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