Limited feedback design for block diagonalization MIMO broadcast channels with user scheduling

Sung Hyun Moon; Jin Sung Kim; Inkyu Lee

doi:10.1109/GLOCOM.2010.5683372

Limited feedback design for block diagonalization MIMO broadcast channels with user scheduling

Sung Hyun Moon, Jin Sung Kim, Inkyu Lee

School of Electrical Engineering

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

4 Citations (Scopus)

Abstract

Block diagonalization (BD) is an attractive method for approaching sum capacity in multiuser multiple-input multiple-output (MIMO) broadcast channels. However, when channel state information (CSI) is limited, the performance of the BD is degraded because inter-user interference cannot be completely eliminated. In this paper, we study limited feedback systems for the BD where a large number of users are supported per cell. Based on an estimate of the received signalto-interference-plus-noise ratio (SINR), we present an efficient feedback scheme which reflects the quality of each user's channel in addition to the use of a quantization codebook. In simulation, we compare the sum rate of the BD scheme under practical scenarios and verify that the proposed SINR feedback is an effective way to exploit multiuser diversity.

Original language	English
Title of host publication	2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
DOIs	https://doi.org/10.1109/GLOCOM.2010.5683372
Publication status	Published - 2010
Event	53rd IEEE Global Communications Conference, GLOBECOM 2010 - Miami, FL, United States Duration: 2010 Dec 6 → 2010 Dec 10

Publication series

Name	GLOBECOM - IEEE Global Telecommunications Conference

Other

Other	53rd IEEE Global Communications Conference, GLOBECOM 2010
Country	United States
City	Miami, FL
Period	10/12/6 → 10/12/10

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/GLOCOM.2010.5683372

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Cite this

Moon, S. H., Kim, J. S., & Lee, I. (2010). Limited feedback design for block diagonalization MIMO broadcast channels with user scheduling. In 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010 [5683372] (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2010.5683372

Moon, SH, Kim, JS & Lee, I 2010, Limited feedback design for block diagonalization MIMO broadcast channels with user scheduling. in 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010., 5683372, GLOBECOM - IEEE Global Telecommunications Conference, 53rd IEEE Global Communications Conference, GLOBECOM 2010, Miami, FL, United States, 10/12/6. https://doi.org/10.1109/GLOCOM.2010.5683372

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abstract = "Block diagonalization (BD) is an attractive method for approaching sum capacity in multiuser multiple-input multiple-output (MIMO) broadcast channels. However, when channel state information (CSI) is limited, the performance of the BD is degraded because inter-user interference cannot be completely eliminated. In this paper, we study limited feedback systems for the BD where a large number of users are supported per cell. Based on an estimate of the received signalto-interference-plus-noise ratio (SINR), we present an efficient feedback scheme which reflects the quality of each user's channel in addition to the use of a quantization codebook. In simulation, we compare the sum rate of the BD scheme under practical scenarios and verify that the proposed SINR feedback is an effective way to exploit multiuser diversity.",

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