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 | GLOBECOM - IEEE Global Telecommunications Conference |
| DOIs | |
| Publication status | Published - 2010 Dec 1 |
| Event | 53rd IEEE Global Communications Conference, GLOBECOM 2010 - Miami, FL, United States Duration: 2010 Dec 6 → 2010 Dec 10 |
Other
| Other | 53rd IEEE Global Communications Conference, GLOBECOM 2010 |
|---|---|
| Country | United States |
| City | Miami, FL |
| Period | 10/12/6 → 10/12/10 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Limited feedback design for block diagonalization MIMO broadcast channels with user scheduling. / Moon, Sung Hyun; Kim, Jin Sung; Lee, Inkyu.
GLOBECOM - IEEE Global Telecommunications Conference. 2010. 5683372.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Limited feedback design for block diagonalization MIMO broadcast channels with user scheduling
AU - Moon, Sung Hyun
AU - Kim, Jin Sung
AU - Lee, Inkyu
PY - 2010/12/1
Y1 - 2010/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=79551646968&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79551646968&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2010.5683372
DO - 10.1109/GLOCOM.2010.5683372
M3 - Conference contribution
SN - 9781424456383
BT - GLOBECOM - IEEE Global Telecommunications Conference
ER -