A Near-Exact Sum Rate Approximation of Random Beamforming and Its Application to Mode Optimization
Summary :
In this letter, a closed form approximation for the average sum rate of random beamforming is derived. It provides a near-exact approximation for arbitrary numbers of beams, users, and received SNR. The approximation is also applied to an average-sense multimode random beamforming scheme which optimizes the number of random beams without any type of instantaneous channel information. The proposed scheme shows better sum rate performance than random beamforming as well as an existing dual mode random beamforming scheme based on instantaneous channel information, while the number of feedback bits for beam index is reduced compared to random beamforming.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E92-B No.3 pp.1049-1052
- Publication Date
- 2009/03/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E92.B.1049
- Type of Manuscript
- LETTER
- Category
- Wireless Communication Technologies
Authors
Keyword
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YoHan KIM, HyukJin CHAE, JangHoon YANG, DongKu KIM, "A Near-Exact Sum Rate Approximation of Random Beamforming and Its Application to Mode Optimization" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 3, pp. 1049-1052, March 2009, doi: 10.1587/transcom.E92.B.1049.
Abstract: In this letter, a closed form approximation for the average sum rate of random beamforming is derived. It provides a near-exact approximation for arbitrary numbers of beams, users, and received SNR. The approximation is also applied to an average-sense multimode random beamforming scheme which optimizes the number of random beams without any type of instantaneous channel information. The proposed scheme shows better sum rate performance than random beamforming as well as an existing dual mode random beamforming scheme based on instantaneous channel information, while the number of feedback bits for beam index is reduced compared to random beamforming.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.1049/_p
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@ARTICLE{e92-b_3_1049,
author={YoHan KIM, HyukJin CHAE, JangHoon YANG, DongKu KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={A Near-Exact Sum Rate Approximation of Random Beamforming and Its Application to Mode Optimization},
year={2009},
volume={E92-B},
number={3},
pages={1049-1052},
abstract={In this letter, a closed form approximation for the average sum rate of random beamforming is derived. It provides a near-exact approximation for arbitrary numbers of beams, users, and received SNR. The approximation is also applied to an average-sense multimode random beamforming scheme which optimizes the number of random beams without any type of instantaneous channel information. The proposed scheme shows better sum rate performance than random beamforming as well as an existing dual mode random beamforming scheme based on instantaneous channel information, while the number of feedback bits for beam index is reduced compared to random beamforming.},
keywords={},
doi={10.1587/transcom.E92.B.1049},
ISSN={1745-1345},
month={March},}
Copy
TY - JOUR
TI - A Near-Exact Sum Rate Approximation of Random Beamforming and Its Application to Mode Optimization
T2 - IEICE TRANSACTIONS on Communications
SP - 1049
EP - 1052
AU - YoHan KIM
AU - HyukJin CHAE
AU - JangHoon YANG
AU - DongKu KIM
PY - 2009
DO - 10.1587/transcom.E92.B.1049
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2009
AB - In this letter, a closed form approximation for the average sum rate of random beamforming is derived. It provides a near-exact approximation for arbitrary numbers of beams, users, and received SNR. The approximation is also applied to an average-sense multimode random beamforming scheme which optimizes the number of random beams without any type of instantaneous channel information. The proposed scheme shows better sum rate performance than random beamforming as well as an existing dual mode random beamforming scheme based on instantaneous channel information, while the number of feedback bits for beam index is reduced compared to random beamforming.
ER -
English
