太赫兹科学与电子信息学报2017，Vol.15Issue(4)：575-579,5.DOI:10.11805/TKYDA201704.0575
GEO卫星LTE跨层资源调度算法
A cross-layer based resource scheduling algorithm for multimedia traffic in GEO satellite LTE networks
摘要
Abstract
Considering the characteristic of long transmission delay in Geosynchronous Orbit(GEO) satellite communication system,it is very important to put forward an applicable resource scheduling algorithm for GEO satellite Long Term Evolution(LTE) system. Based on the Modified Largest Weighted Delay First(M-LWDF) algorithm, a cross-layer scheduling algorithm is proposed with the comprehensive consideration of parameters in the Media Access Control(MAC) layer and application layer for enhancing the efficiency of resources allocation.Specifically, a greater weight delay factor is put forward from the point of mathematical deduction in the MAC layer, in addition to introducingQ factor into the application layer according to service priorities. Comparing with M-LWDF algorithm, the simulation results show that the cross-layer based resource scheduling algorithm can reduce transmission delay and improve the throughput for different traffics, whereas fair performance decreases slightly and the complexity increases.关键词
地球同步轨道卫星/跨层设计/时延因子/Q因子Key words
Geosynchronous Orbit satellite/cross-layer based design/delay factor/factorQ分类
信息技术与安全科学引用本文复制引用
徐小玲,段然,崔维嘉,王大鸣..GEO卫星LTE跨层资源调度算法[J].太赫兹科学与电子信息学报,2017,15(4):575-579,5.基金项目
国家高技术研究发展计划资助项目(2012AA01A502 （）
2012AA01A505) （）
