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

Fredrik Florén, Ove Edfors, Bengt-Arne Molin

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

80 Citations (SciVal)
112 Downloads (Pure)


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.
Original languageEnglish
Title of host publicationConference Record / IEEE Global Telecommunications Conference
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Publication statusPublished - 2003
EventIEEE Global Telecommunications Conference, 2003 - San Francisco, CA, United States
Duration: 2003 Dec 12003 Dec 5

Publication series



ConferenceIEEE Global Telecommunications Conference, 2003
Abbreviated titleGLOBECOM'03
Country/TerritoryUnited States
CitySan Francisco, CA

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering


  • Multiuser diversity
  • Cumulative distribution function (CDF)


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