Finite-rate feedback MIMO broadcast channels with a large number of users

Taesang Yoo; Nihar Jindas; Andrea Goldsmith

doi:10.1109/ISIT.2006.261998

Finite-rate feedback MIMO broadcast channels with a large number of users

Taesang Yoo
, Nihar Jindas
, Andrea Goldsmith

Stony Brook University

Stony Brook University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

67 Scopus citations

Abstract

We analyze the sum-rate performance of a multiantenna downlink system carrying more users than transmit antennas, with partial channel knowledge at the transmitter due to finite rate feedback. In order to exploit multiuser diversity, we show that the transmitter must have, in addition to directional information, information regarding the quality of each channel. Such information should reflect both the channel magnitude and the quantization error. Expressions for the SINR distribution and the sum-rate are derived, and tradeoffs between the number of feedback bits, the number of users, and the SNR are observed. In particular, for a target performance, having more users reduces feedback load.

Original language	English
Title of host publication	Proceedings - 2006 IEEE International Symposium on Information Theory, ISIT 2006
Pages	1214-1218
Number of pages	5
DOIs	https://doi.org/10.1109/ISIT.2006.261998
State	Published - 2006
Event	2006 IEEE International Symposium on Information Theory, ISIT 2006 - Seattle, WA, United States Duration: Jul 9 2006 → Jul 14 2006

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings

Conference

Conference	2006 IEEE International Symposium on Information Theory, ISIT 2006
Country/Territory	United States
City	Seattle, WA
Period	07/9/06 → 07/14/06

Access to Document

10.1109/ISIT.2006.261998

Cite this

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title = "Finite-rate feedback MIMO broadcast channels with a large number of users",

abstract = "We analyze the sum-rate performance of a multiantenna downlink system carrying more users than transmit antennas, with partial channel knowledge at the transmitter due to finite rate feedback. In order to exploit multiuser diversity, we show that the transmitter must have, in addition to directional information, information regarding the quality of each channel. Such information should reflect both the channel magnitude and the quantization error. Expressions for the SINR distribution and the sum-rate are derived, and tradeoffs between the number of feedback bits, the number of users, and the SNR are observed. In particular, for a target performance, having more users reduces feedback load.",

author = "Taesang Yoo and Nihar Jindas and Andrea Goldsmith",

year = "2006",

doi = "10.1109/ISIT.2006.261998",

language = "English",

isbn = "1424405041",

series = "IEEE International Symposium on Information Theory - Proceedings",

pages = "1214--1218",

booktitle = "Proceedings - 2006 IEEE International Symposium on Information Theory, ISIT 2006",

note = "2006 IEEE International Symposium on Information Theory, ISIT 2006 ; Conference date: 09-07-2006 Through 14-07-2006",

}

Yoo, T, Jindas, N & Goldsmith, A 2006, Finite-rate feedback MIMO broadcast channels with a large number of users. in Proceedings - 2006 IEEE International Symposium on Information Theory, ISIT 2006., 4036158, IEEE International Symposium on Information Theory - Proceedings, pp. 1214-1218, 2006 IEEE International Symposium on Information Theory, ISIT 2006, Seattle, WA, United States, 07/9/06. https://doi.org/10.1109/ISIT.2006.261998

Finite-rate feedback MIMO broadcast channels with a large number of users. / Yoo, Taesang; Jindas, Nihar; Goldsmith, Andrea.
Proceedings - 2006 IEEE International Symposium on Information Theory, ISIT 2006. 2006. p. 1214-1218 4036158 (IEEE International Symposium on Information Theory - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Jindas, Nihar

AU - Goldsmith, Andrea

PY - 2006

Y1 - 2006

N2 - We analyze the sum-rate performance of a multiantenna downlink system carrying more users than transmit antennas, with partial channel knowledge at the transmitter due to finite rate feedback. In order to exploit multiuser diversity, we show that the transmitter must have, in addition to directional information, information regarding the quality of each channel. Such information should reflect both the channel magnitude and the quantization error. Expressions for the SINR distribution and the sum-rate are derived, and tradeoffs between the number of feedback bits, the number of users, and the SNR are observed. In particular, for a target performance, having more users reduces feedback load.

AB - We analyze the sum-rate performance of a multiantenna downlink system carrying more users than transmit antennas, with partial channel knowledge at the transmitter due to finite rate feedback. In order to exploit multiuser diversity, we show that the transmitter must have, in addition to directional information, information regarding the quality of each channel. Such information should reflect both the channel magnitude and the quantization error. Expressions for the SINR distribution and the sum-rate are derived, and tradeoffs between the number of feedback bits, the number of users, and the SNR are observed. In particular, for a target performance, having more users reduces feedback load.

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DO - 10.1109/ISIT.2006.261998

M3 - Conference contribution

SN - 1424405041

SN - 9781424405046

T3 - IEEE International Symposium on Information Theory - Proceedings

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BT - Proceedings - 2006 IEEE International Symposium on Information Theory, ISIT 2006

T2 - 2006 IEEE International Symposium on Information Theory, ISIT 2006

Y2 - 9 July 2006 through 14 July 2006

ER -

Finite-rate feedback MIMO broadcast channels with a large number of users

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