Proportional Fairness in Cognitive Wireless Powered Communication Networks

被引：12
|
作者：
Cheng, Yongbo [1 ,2 ]
Fu, Pengcheng [1 ,2 ]
Ding, Yuanyuan [1 ,2 ]
Li, Baoqing [1 ]
Yuan, Xiaobing [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Sci & Technol Microsyst Lab, Shanghai 200050, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 06期
关键词：
Wireless powered communication network; cognitive radio; wireless energy harvesting; proportional fairness; RADIO NETWORKS; RESOURCE-ALLOCATION; CHALLENGES;
D O I：
10.1109/LCOMM.2017.2675904
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, we consider a cognitive wireless powered communication network (CWPCN), with a secondary wireless powered communication network (WPCN) that has cognitive ability to coexist with a primary communication network. To tackle the unfairness resource allocation issue in CWPCN, we extend proportional fair scheduler to this category of network. By utilizing the time division-based "harvest-then-transmit" protocol, we establish an optimization problem for optimal time slot allocation, which maximizes the bandwidth utility function for proportional fairness, under the constraints of time and interference. To solve this problem, an algorithm is proposed to find a tradeoff between fairness and throughput. Simulation results confirm the positive effect on the promotion of fairness metric.
引用
收藏
页码：1397 / 1400
页数：4
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