IEICE TRANSACTIONS on Fundamentals
A Novel Low Computational Complexity Power Assignment Method for Non-orthogonal Multiple Access Systems
Summary :
Multiple access (MA) technology is of most importance for beyond long term evolution (LTE) system. Non-orthogonal multiple access (NOMA) utilizing power domain and advanced receiver has been considered as a candidate MA technology recently. In this paper, power assignment method, which plays a key role in performance of NOMA, is investigated. The power assignment on the basis of maximizing geometric mean user throughput requires exhaustive search and thus has an unacceptable computational complexity for practical systems. To solve this problem, a novel power assignment method is proposed by exploiting tree search and characteristic of serial interference cancellation (SIC) receiver. The proposed method achieves the same performance as the exhaustive search while greatly reduces the computational complexity. On the basis of the proposed power assignment method, the performance of NOMA is investigated by link-level and system-level simulations in order to provide insight into suitability of using NOMA for future MA. Simulation results verify effectiveness of the proposed power assignment method and show NOMA is a very promising MA technology for beyond LTE system.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.1 pp.57-68
- Publication Date
- 2014/01/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E97.A.57
- Type of Manuscript
- Special Section PAPER (Special Section on Wideband Systems)
- Category
- Resource Allocation
Authors
Anxin LI
DOCOMO Beijing Communications Laboratories Co., Ltd.
Atsushi HARADA
DOCOMO Beijing Communications Laboratories Co., Ltd.
Hidetoshi KAYAMA
DOCOMO Beijing Communications Laboratories Co., Ltd.
Keyword
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Anxin LI, Atsushi HARADA, Hidetoshi KAYAMA, "A Novel Low Computational Complexity Power Assignment Method for Non-orthogonal Multiple Access Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E97-A, no. 1, pp. 57-68, January 2014, doi: 10.1587/transfun.E97.A.57.
Abstract: Multiple access (MA) technology is of most importance for beyond long term evolution (LTE) system. Non-orthogonal multiple access (NOMA) utilizing power domain and advanced receiver has been considered as a candidate MA technology recently. In this paper, power assignment method, which plays a key role in performance of NOMA, is investigated. The power assignment on the basis of maximizing geometric mean user throughput requires exhaustive search and thus has an unacceptable computational complexity for practical systems. To solve this problem, a novel power assignment method is proposed by exploiting tree search and characteristic of serial interference cancellation (SIC) receiver. The proposed method achieves the same performance as the exhaustive search while greatly reduces the computational complexity. On the basis of the proposed power assignment method, the performance of NOMA is investigated by link-level and system-level simulations in order to provide insight into suitability of using NOMA for future MA. Simulation results verify effectiveness of the proposed power assignment method and show NOMA is a very promising MA technology for beyond LTE system.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E97.A.57/_p
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@ARTICLE{e97-a_1_57,
author={Anxin LI, Atsushi HARADA, Hidetoshi KAYAMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Novel Low Computational Complexity Power Assignment Method for Non-orthogonal Multiple Access Systems},
year={2014},
volume={E97-A},
number={1},
pages={57-68},
abstract={Multiple access (MA) technology is of most importance for beyond long term evolution (LTE) system. Non-orthogonal multiple access (NOMA) utilizing power domain and advanced receiver has been considered as a candidate MA technology recently. In this paper, power assignment method, which plays a key role in performance of NOMA, is investigated. The power assignment on the basis of maximizing geometric mean user throughput requires exhaustive search and thus has an unacceptable computational complexity for practical systems. To solve this problem, a novel power assignment method is proposed by exploiting tree search and characteristic of serial interference cancellation (SIC) receiver. The proposed method achieves the same performance as the exhaustive search while greatly reduces the computational complexity. On the basis of the proposed power assignment method, the performance of NOMA is investigated by link-level and system-level simulations in order to provide insight into suitability of using NOMA for future MA. Simulation results verify effectiveness of the proposed power assignment method and show NOMA is a very promising MA technology for beyond LTE system.},
keywords={},
doi={10.1587/transfun.E97.A.57},
ISSN={1745-1337},
month={January},}
Copy
TY - JOUR
TI - A Novel Low Computational Complexity Power Assignment Method for Non-orthogonal Multiple Access Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 57
EP - 68
AU - Anxin LI
AU - Atsushi HARADA
AU - Hidetoshi KAYAMA
PY - 2014
DO - 10.1587/transfun.E97.A.57
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E97-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2014
AB - Multiple access (MA) technology is of most importance for beyond long term evolution (LTE) system. Non-orthogonal multiple access (NOMA) utilizing power domain and advanced receiver has been considered as a candidate MA technology recently. In this paper, power assignment method, which plays a key role in performance of NOMA, is investigated. The power assignment on the basis of maximizing geometric mean user throughput requires exhaustive search and thus has an unacceptable computational complexity for practical systems. To solve this problem, a novel power assignment method is proposed by exploiting tree search and characteristic of serial interference cancellation (SIC) receiver. The proposed method achieves the same performance as the exhaustive search while greatly reduces the computational complexity. On the basis of the proposed power assignment method, the performance of NOMA is investigated by link-level and system-level simulations in order to provide insight into suitability of using NOMA for future MA. Simulation results verify effectiveness of the proposed power assignment method and show NOMA is a very promising MA technology for beyond LTE system.
ER -
English
