A Per-User QoS Enhancement Strategy via Downlink Cooperative Transmission Using Distributed Antennas
Summary :
In this letter, we address a strategy to enhance the signal-to-interference plus noise ratio (SINR) of the worst-case user by using cooperative transmission from a set of geographically separated antennas. Unlike previously reported schemes which are based on either the power control of individual antennas or cooperative orthogonal transmission, the presented strategy utilizes the minimum-mean-squared error (MMSE) filter structure for beamforming, which provides increased robustness to the external interference as well as the background noise at the receiver. By iteratively updating the cooperative transmission beamforming vector and power control (PC), the balanced SINR is obtained for all users, while the transmission power from each antenna also converges to within the constrained value. It is demonstrated that proposed MMSE beamforming significantly outperforms other existing schemes in terms of the achievable minimum SINR.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E93-B No.12 pp.3538-3541
- Publication Date
- 2010/12/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E93.B.3538
- Type of Manuscript
- Special Section LETTER (Special Section on Wireless Distributed Networks)
- Category
Authors
Keyword
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Byungseok LEE, Ju Wook JANG, Sang-Gyu PARK, Wonjin SUNG, "A Per-User QoS Enhancement Strategy via Downlink Cooperative Transmission Using Distributed Antennas" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 12, pp. 3538-3541, December 2010, doi: 10.1587/transcom.E93.B.3538.
Abstract: In this letter, we address a strategy to enhance the signal-to-interference plus noise ratio (SINR) of the worst-case user by using cooperative transmission from a set of geographically separated antennas. Unlike previously reported schemes which are based on either the power control of individual antennas or cooperative orthogonal transmission, the presented strategy utilizes the minimum-mean-squared error (MMSE) filter structure for beamforming, which provides increased robustness to the external interference as well as the background noise at the receiver. By iteratively updating the cooperative transmission beamforming vector and power control (PC), the balanced SINR is obtained for all users, while the transmission power from each antenna also converges to within the constrained value. It is demonstrated that proposed MMSE beamforming significantly outperforms other existing schemes in terms of the achievable minimum SINR.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.3538/_p
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@ARTICLE{e93-b_12_3538,
author={Byungseok LEE, Ju Wook JANG, Sang-Gyu PARK, Wonjin SUNG, },
journal={IEICE TRANSACTIONS on Communications},
title={A Per-User QoS Enhancement Strategy via Downlink Cooperative Transmission Using Distributed Antennas},
year={2010},
volume={E93-B},
number={12},
pages={3538-3541},
abstract={In this letter, we address a strategy to enhance the signal-to-interference plus noise ratio (SINR) of the worst-case user by using cooperative transmission from a set of geographically separated antennas. Unlike previously reported schemes which are based on either the power control of individual antennas or cooperative orthogonal transmission, the presented strategy utilizes the minimum-mean-squared error (MMSE) filter structure for beamforming, which provides increased robustness to the external interference as well as the background noise at the receiver. By iteratively updating the cooperative transmission beamforming vector and power control (PC), the balanced SINR is obtained for all users, while the transmission power from each antenna also converges to within the constrained value. It is demonstrated that proposed MMSE beamforming significantly outperforms other existing schemes in terms of the achievable minimum SINR.},
keywords={},
doi={10.1587/transcom.E93.B.3538},
ISSN={1745-1345},
month={December},}
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TY - JOUR
TI - A Per-User QoS Enhancement Strategy via Downlink Cooperative Transmission Using Distributed Antennas
T2 - IEICE TRANSACTIONS on Communications
SP - 3538
EP - 3541
AU - Byungseok LEE
AU - Ju Wook JANG
AU - Sang-Gyu PARK
AU - Wonjin SUNG
PY - 2010
DO - 10.1587/transcom.E93.B.3538
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2010
AB - In this letter, we address a strategy to enhance the signal-to-interference plus noise ratio (SINR) of the worst-case user by using cooperative transmission from a set of geographically separated antennas. Unlike previously reported schemes which are based on either the power control of individual antennas or cooperative orthogonal transmission, the presented strategy utilizes the minimum-mean-squared error (MMSE) filter structure for beamforming, which provides increased robustness to the external interference as well as the background noise at the receiver. By iteratively updating the cooperative transmission beamforming vector and power control (PC), the balanced SINR is obtained for all users, while the transmission power from each antenna also converges to within the constrained value. It is demonstrated that proposed MMSE beamforming significantly outperforms other existing schemes in terms of the achievable minimum SINR.
ER -
English
