Exponentially weighted proportional fair scheduling algorithm for the OFDMA system

被引：0
作者：
Liang, Siyu [1 ]
Chen, Weisheng [1 ]
Li, Yake [1 ]
Fang, Xinpeng [1 ]
机构：
[1] Xidian Univ, Sch Aerosp Sci & Technol, Xian 710071, Shaanxi, Peoples R China
来源：
SCIENCE CHINA-INFORMATION SCIENCES | 2019年 / 62卷 / 04期
基金：
中国国家自然科学基金;
关键词：
exponentially weighted proportional fair; user perceived throughput; downlink scheduling algorithm; scheduled IP throughput; REQUIREMENTS; NETWORKS;
D O I：
10.1007/s11432-018-9746-9
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This study aims to propose an exponentially weighted proportional fair (EWPF) scheduling algorithm for orthogonal frequency division multiple access (OFDMA) system for long-term evolution downlink transmission. The proposed algorithm improves the system performance in the user-perceived throughput (UPT) by adding exponential weights to different types of services. The UPT employed to measure the system capability is novel and customer oriented; it reflects the experiences of users in an efficient manner and determines whether the user's scheduling is reasonable. The EWPF algorithm is compared with two other schedulers, and our simulation results showed that the EWPF can increase the overall UPT and can maintain the fairness for prioritizing the transmission of some types of traffic.
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页数：10
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