QoS-based optimal and fair resource allocation for energy-efficiency uplink NOMA networks

doi:10.19682/j.cnki.1005-8885.2020.0019

中国邮电高校学报(英文) ›› 2020, Vol. 27 ›› Issue (3): 83-92.doi: 10.19682/j.cnki.1005-8885.2020.0019

QoS-based optimal and fair resource allocation for energy-efficiency uplink NOMA networks

郭艳艳

山西大学

收稿日期:2019-09-30 修回日期:2020-04-22 出版日期:2020-06-24 发布日期:2020-08-30
通讯作者: 郭艳艳 E-mail:luegyy@163.com
基金资助:
This work was supported by the National Natural Science Foundation of China (11705108).

QoS-based optimal and fair resource allocation for energy-efficiency uplink NOMA networks

Gro Yanyan, Li Shuai, Wu Chao

Received:2019-09-30 Revised:2020-04-22 Online:2020-06-24 Published:2020-08-30
Contact: GUO Yan-Yan E-mail:luegyy@163.com
Supported by:
This work was supported by the National Natural Science Foundation of China (11705108).

摘要/Abstract

摘要： The energy-efficiency(EE) optimization problem was studied for resource allocation in an uplink single-cell network, in which multiple mobile users with different quality of service (QoS) requirements operate under a non-orthogonal multiple access (NOMA) scheme. Firstly, a multi-user feasible power allocation region is derived as a multidimensional body that provides an efficient scheme to determine the feasibility of original channel and power assignment problem. Then, the size of feasible power allocation region was first introduced as utility function of the subchannel-user matching game in order to get high EE of the system and fairness among the users. Moreover, the power allocation optimization to the EE maximization is proved to be a monotonous decline function. The simulation results show that compared with the conventional schemes, the network connectivity of the proposed scheme is significantly enhanced and besides, for low rate massive connectivity networks, the proposed scheme obtains performance gains in the EE of the system.

关键词: NOMA, energy-efficiency, multiple access, D2D

Abstract: The energy-efficiency(EE) optimization problem was studied for resource allocation in an uplink single-cell network, in which multiple mobile users with different quality of service (QoS) requirements operate under a non-orthogonal multiple access (NOMA) scheme. Firstly, a multi-user feasible power allocation region is derived as a multidimensional body that provides an efficient scheme to determine the feasibility of original channel and power assignment problem. Then, the size of feasible power allocation region was first introduced as utility function of the subchannel-user matching game in order to get high EE of the system and fairness among the users. Moreover, the power allocation optimization to the EE maximization is proved to be a monotonous decline function. The simulation results show that compared with the conventional schemes, the network connectivity of the proposed scheme is significantly enhanced and besides, for low rate massive connectivity networks, the proposed scheme obtains performance gains in the EE of the system.

Key words: NOMA, energy-efficiency, multiple access, D2D

中图分类号:

TN929.53

Gro Yanyan, Li Shuai, Wu Chao. QoS-based optimal and fair resource allocation for energy-efficiency uplink NOMA networks[J]. The Journal of China Universities of Posts and Telecommunications, 2020, 27(3): 83-92.

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QoS-based optimal and fair resource allocation for energy-efficiency uplink NOMA networks

QoS-based optimal and fair resource allocation for energy-efficiency uplink NOMA networks

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