Energy-Efficient Scheduling and Resource Allocation in Uplink OFDMA Systems

被引：21
|
作者：
Ye, Haina [1 ]
Lim, Gubong [1 ,2 ]
Cimini, Leonard J. [3 ]
Tan, Zhenhui [1 ]
机构：
[1] Beijing Jiaotong Univ, Inst Broadband Wireless Mobile Commun, Sch Elect & Informat Engn, Beijing 100044, Peoples R China
[2] Availink Inc., Germantown, MD 20874 USA
[3] Univ Delaware, Dept Elect & Comput Engn, Newark, DE 19716 USA
来源：
IEEE COMMUNICATIONS LETTERS | 2015年 / 19卷 / 03期
基金：
美国国家科学基金会;
关键词：
Energy efficiency; resource allocation; scheduling; orthogonal frequency division multiple access (OFDMA); WIRELESS COMMUNICATIONS;
D O I：
10.1109/LCOMM.2015.2388487
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Energy efficiency (EE) is an important objective in uplink wireless communications due to the limited capacity of batteries in user equipment (UE). In this letter, we propose a scheduling metric to balance the tradeoff between EE and fairness. We consider the scenario in which the access point (AP) serves a subset of UEs when available resources cannot support all of the UEs' quality-of-service (QoS) requirements. Based on the scheduling metric, we propose a suboptimal joint scheduling and resource allocation algorithm that maximizes the system EE. Simulation results show that the proposed algorithm can achieve a good tradeoff between the system EE and fairness.
引用
收藏
页码：439 / +
页数：2
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