A General Power Allocation Scheme to Guarantee Quality of Service in Downlink and Uplink NOMA Systems

Zheng Yang; Zhiguo Ding; Pingzhi Fan; Naofal Al-Dhahir

doi:10.1109/TWC.2016.2599521

A General Power Allocation Scheme to Guarantee Quality of Service in Downlink and Uplink NOMA Systems

Zheng Yang, Zhiguo Ding, Pingzhi Fan, Naofal Al-Dhahir

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

491 Scopus citations

Abstract

In this paper, a novel dynamic power allocation scheme is proposed to downlink and uplink non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting various quality of service requirements. The exact expressions for the outage probability and the average rate achieved by the proposed scheme, as well as their high signal-to-noise ratio approximations, are established. Compared with the existing works, such as NOMA with fixed power allocation and cognitive radio inspired NOMA, the proposed scheme can: 1) strictly guarantee a performance gain over conventional orthogonal multiple access; and 2) offer more flexibility to realize different tradeoffs between the user fairness and system throughput. Monte Carlo simulation results are provided to demonstrate the accuracy of the developed analytical results and the performance gain of the proposed power allocation scheme.

Original language	British English
Article number	7542118
Pages (from-to)	7244-7257
Number of pages	14
Journal	IEEE Transactions on Wireless Communications
Volume	15
Issue number	11
DOIs	https://doi.org/10.1109/TWC.2016.2599521
State	Published - Nov 2016

Keywords

average rate
diversity order
Non-orthogonal multiple access
outage probability
quality of service

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title = "A General Power Allocation Scheme to Guarantee Quality of Service in Downlink and Uplink NOMA Systems",

abstract = "In this paper, a novel dynamic power allocation scheme is proposed to downlink and uplink non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting various quality of service requirements. The exact expressions for the outage probability and the average rate achieved by the proposed scheme, as well as their high signal-to-noise ratio approximations, are established. Compared with the existing works, such as NOMA with fixed power allocation and cognitive radio inspired NOMA, the proposed scheme can: 1) strictly guarantee a performance gain over conventional orthogonal multiple access; and 2) offer more flexibility to realize different tradeoffs between the user fairness and system throughput. Monte Carlo simulation results are provided to demonstrate the accuracy of the developed analytical results and the performance gain of the proposed power allocation scheme.",

keywords = "average rate, diversity order, Non-orthogonal multiple access, outage probability, quality of service",

author = "Zheng Yang and Zhiguo Ding and Pingzhi Fan and Naofal Al-Dhahir",

note = "Funding Information: The work of Z. Yang and P. Fan was supported in part by the National Natural Science Foundation of China under Grant 61471302, in part by the National Sci & Tech Major Project under Grant 2016ZX03001018-002, in part by the National High-Tech R&D Program of China under Grant 2014AA01A707, and in part by the 111 project under Grant 111-2-14. The work of Z. Ding was supported in part by U.K. EPSRC under Grant EP/L025272/1 and in part by the Royal Society International Exchange Scheme. The associate editor coordinating the review of this paper and approving it for publication was J. M. Romero-Jerez. Publisher Copyright: {\textcopyright} 2016 IEEE.",

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N1 - Funding Information: The work of Z. Yang and P. Fan was supported in part by the National Natural Science Foundation of China under Grant 61471302, in part by the National Sci & Tech Major Project under Grant 2016ZX03001018-002, in part by the National High-Tech R&D Program of China under Grant 2014AA01A707, and in part by the 111 project under Grant 111-2-14. The work of Z. Ding was supported in part by U.K. EPSRC under Grant EP/L025272/1 and in part by the Royal Society International Exchange Scheme. The associate editor coordinating the review of this paper and approving it for publication was J. M. Romero-Jerez. Publisher Copyright: © 2016 IEEE.

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N2 - In this paper, a novel dynamic power allocation scheme is proposed to downlink and uplink non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting various quality of service requirements. The exact expressions for the outage probability and the average rate achieved by the proposed scheme, as well as their high signal-to-noise ratio approximations, are established. Compared with the existing works, such as NOMA with fixed power allocation and cognitive radio inspired NOMA, the proposed scheme can: 1) strictly guarantee a performance gain over conventional orthogonal multiple access; and 2) offer more flexibility to realize different tradeoffs between the user fairness and system throughput. Monte Carlo simulation results are provided to demonstrate the accuracy of the developed analytical results and the performance gain of the proposed power allocation scheme.

AB - In this paper, a novel dynamic power allocation scheme is proposed to downlink and uplink non-orthogonal multiple access (NOMA) scenarios with two users for more flexibly meeting various quality of service requirements. The exact expressions for the outage probability and the average rate achieved by the proposed scheme, as well as their high signal-to-noise ratio approximations, are established. Compared with the existing works, such as NOMA with fixed power allocation and cognitive radio inspired NOMA, the proposed scheme can: 1) strictly guarantee a performance gain over conventional orthogonal multiple access; and 2) offer more flexibility to realize different tradeoffs between the user fairness and system throughput. Monte Carlo simulation results are provided to demonstrate the accuracy of the developed analytical results and the performance gain of the proposed power allocation scheme.

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A General Power Allocation Scheme to Guarantee Quality of Service in Downlink and Uplink NOMA Systems

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