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

Sung Hyun Moon, Jin Sung Kim, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publication2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
DOIs
Publication statusPublished - 2010
Event53rd IEEE Global Communications Conference, GLOBECOM 2010 - Miami, FL, United States
Duration: 2010 Dec 62010 Dec 10

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other53rd IEEE Global Communications Conference, GLOBECOM 2010
CountryUnited States
CityMiami, FL
Period10/12/610/12/10

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    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