IEICE TRANSACTIONS on Communications
Multiple Random Beams Selection Exploiting Chordal Distances
Summary :
We consider a time-division multiple access (TDMA) transmission scheme in MIMO broadcast channels. To cope with the fairness issue in heterogeneous networks with slow fading, an opportunistic scheduling algorithm based on the channel eigen-direction is investigated. In the system with sparse users, the mismatch between a random beamforming vector and the principle eigenvector of the channel incurs a throughput penalty. To reduce such a throughput loss, a multiple random beams selection (MRBS) scheme exploiting chordal distances is proposed. Two feedback schemes (unquantized or quantized chordal distances) are considered. The closed-form throughput expressions of the proposed schemes are derived.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E91-B No.11 pp.3722-3726
- Publication Date
- 2008/11/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1093/ietcom/e91-b.11.3722
- Type of Manuscript
- LETTER
- Category
- Wireless Communication Technologies
Authors
Keyword
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Lan TANG, Pengcheng ZHU, Xiaohu YOU, Yan WANG, "Multiple Random Beams Selection Exploiting Chordal Distances" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 11, pp. 3722-3726, November 2008, doi: 10.1093/ietcom/e91-b.11.3722.
Abstract: We consider a time-division multiple access (TDMA) transmission scheme in MIMO broadcast channels. To cope with the fairness issue in heterogeneous networks with slow fading, an opportunistic scheduling algorithm based on the channel eigen-direction is investigated. In the system with sparse users, the mismatch between a random beamforming vector and the principle eigenvector of the channel incurs a throughput penalty. To reduce such a throughput loss, a multiple random beams selection (MRBS) scheme exploiting chordal distances is proposed. Two feedback schemes (unquantized or quantized chordal distances) are considered. The closed-form throughput expressions of the proposed schemes are derived.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.11.3722/_p
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@ARTICLE{e91-b_11_3722,
author={Lan TANG, Pengcheng ZHU, Xiaohu YOU, Yan WANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Multiple Random Beams Selection Exploiting Chordal Distances},
year={2008},
volume={E91-B},
number={11},
pages={3722-3726},
abstract={We consider a time-division multiple access (TDMA) transmission scheme in MIMO broadcast channels. To cope with the fairness issue in heterogeneous networks with slow fading, an opportunistic scheduling algorithm based on the channel eigen-direction is investigated. In the system with sparse users, the mismatch between a random beamforming vector and the principle eigenvector of the channel incurs a throughput penalty. To reduce such a throughput loss, a multiple random beams selection (MRBS) scheme exploiting chordal distances is proposed. Two feedback schemes (unquantized or quantized chordal distances) are considered. The closed-form throughput expressions of the proposed schemes are derived.},
keywords={},
doi={10.1093/ietcom/e91-b.11.3722},
ISSN={1745-1345},
month={November},}
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TY - JOUR
TI - Multiple Random Beams Selection Exploiting Chordal Distances
T2 - IEICE TRANSACTIONS on Communications
SP - 3722
EP - 3726
AU - Lan TANG
AU - Pengcheng ZHU
AU - Xiaohu YOU
AU - Yan WANG
PY - 2008
DO - 10.1093/ietcom/e91-b.11.3722
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2008
AB - We consider a time-division multiple access (TDMA) transmission scheme in MIMO broadcast channels. To cope with the fairness issue in heterogeneous networks with slow fading, an opportunistic scheduling algorithm based on the channel eigen-direction is investigated. In the system with sparse users, the mismatch between a random beamforming vector and the principle eigenvector of the channel incurs a throughput penalty. To reduce such a throughput loss, a multiple random beams selection (MRBS) scheme exploiting chordal distances is proposed. Two feedback schemes (unquantized or quantized chordal distances) are considered. The closed-form throughput expressions of the proposed schemes are derived.
ER -
English
