主页期刊介绍编委会编辑部服务介绍道德声明在线审稿编委办公编辑办公English
2018-2019年专刊出版计划 微信服务介绍 最新一期:2019年第7期
     
在线出版
各期目录
纸质出版
分辑系列
论文检索
论文排行
综述文章
专刊文章
美文分享
各期封面
E-mail Alerts
RSS
旧版入口
中国科学院软件研究所
  
投稿指南 问题解答 下载区 收费标准 在线投稿
郝丹丹,邹仕洪,程时端.一种用于无线网络中实时业务的跨层调度算法.软件学报,2008,19(1):156-166
一种用于无线网络中实时业务的跨层调度算法
A Cross-Layer Scheduling Algorithm for Real-Time Applications in Wireless Networks
投稿时间:2006-09-26  修订日期:2007-01-23
DOI:
中文关键词:  跨层  调度算法  无线网络  性能  实时应用
英文关键词:cross-layer  scheduling algorithm  wireless networks  performance  real-time application
基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.60603060, 60502037, 90604019 (国家自然科学基金); the National Basic Research Program of China under Grant No.2003CB314806 (国家重点基础研究发展计划(973))
作者单位
郝丹丹 北京邮电大学 网络与交换技术国家重点实验室,北京 100876 
邹仕洪 北京邮电大学 网络与交换技术国家重点实验室,北京 100876 
程时端 北京邮电大学 网络与交换技术国家重点实验室,北京 100876 
摘要点击次数: 3542
全文下载次数: 3734
中文摘要:
      就同时包含了有线链路和无线链路的异构网络上的实时应用,提出了一种满足其端到端服务质量(QoS)需求的无线网络MAC(media access control)层调度算法(real-time cross-layer scheduling algorithm for real-time application,简称RTCLA).该算法采用跨层的思想,结合了自适应调制编码(adaptive modulation and coding,简称AMC)技术和选择性自动请求重传(selective repeat-aut
英文摘要:
      This paper proposes a scheduling algorithm, RTCLA (real-time cross-layer scheduling algorithm for real-time application), at MAC layer for real-time applications traversing heterogeneous networks including wired and wireless links. RTCLA is a cross-layer algorithm, combined with adaptive modulation and coding (AMC) and selective repeat-automatic repeat request (SR-ARQ). It is designed to improve spectrum utilization when satisfying packet error rate (PER) and delay requirements. Simulations are employed to evaluate the performance of RTCLA in three metrics including system packets time-out rate, average system effective throughput and fairness and it is compared with the modified proportional fair (MPF), the earliest deadline first (EDF) and the modified largest weighted delay first (M-LWDF) algorithms. Simulation results show that RTCLA outperforms MPF, EDF and M-LWDF algorithms in terms of the strict delay requirements of real-time applications, scarcity of spectrum and the time-varying channels, especially in the performance of packet time-out rate. Furthermore, the simulation results show that RTCLA performs the same as other three algorithms in stability.
HTML  下载PDF全文  查看/发表评论  下载PDF阅读器
 

京公网安备 11040202500064号

主办单位:中国科学院软件研究所 中国计算机学会
编辑部电话:+86-10-62562563 E-mail: jos@iscas.ac.cn
Copyright 中国科学院软件研究所《软件学报》版权所有 All Rights Reserved
本刊全文数据库版权所有,未经许可,不得转载,本刊保留追究法律责任的权利