Fairness resource allocation algorithm based on OFDMA scheduling access in 802.11ax system

被引：0
|
作者：
Chen F. [1 ]
Zhang Z. [1 ]
Li H. [1 ]
Mei Z. [1 ]
机构：
[1] School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing
来源：
Zhang, Zhihao | 1600年 / Chinese Institute of Electronics卷 / 43期
关键词：
Energy efficiency; Generalized fractional programming; IEEE802.11ax; Orthogonal frequency division multiple access (OFDMA) scheduling access; Resource allocation;
D O I：
10.12305/j.issn.1001-506X.2021.11.36
中图分类号：
学科分类号：
摘要：
A fairness sub-channel and power allocation algorithm based on energy efficiency is proposed for the uplink of orthogonal frequency division multiple access (OFDMA) system in 802.11ax. According to the uplink model based on energy efficiency, the resource unit (RU) number determination algorithm and separate sub-channel matching and power allocation algorithm are proposed. To solve the problems of insufficient spectrum utilization and unreasonable power allocation in separate allocation algorithm, an improved joint sub-channel and power iterative allocation algorithm is proposed, by using generalized fractional programming, the constraints are rewritten and the penalty term is added to the objective function to relax the integer variables, it is further solved by sequential convex programming (SCP). The simulation results show that the energy efficiency of users in the system is improved compared with the original algorithm through independent and joint iterative allocation of power and sub-channels, and the fairness between users is considered. © 2021, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：3352 / 3359
页数：7
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