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

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Author

Summary, in English

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.

Publishing year

2003

Language

English

Pages

497-501

Publication/Series

Conference Record / IEEE Global Telecommunications Conference

Volume

1

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Multiuser diversity
  • Cumulative distribution function (CDF)

Conference name

IEEE Global Telecommunications Conference, 2003

Conference date

2003-12-01 - 2003-12-05

Conference place

San Francisco, CA, United States

Status

Published