首页 | 本学科首页   官方微博 | 高级检索  
     

面向时延约束的多跳自组网络性能建模分析
引用本文:刘颖,朱斯燕,孙晨华,李国彦. 面向时延约束的多跳自组网络性能建模分析[J]. 北京邮电大学学报, 2017, 40(5): 24-29. DOI: 10.13190/j.jbupt.2017-062
作者姓名:刘颖  朱斯燕  孙晨华  李国彦
作者单位:北京交通大学 电子信息工程学院,北京100044;通信网信息传输与分发技术重点实验室,石家庄050081;北京交通大学 电子信息工程学院,北京,100044;通信网信息传输与分发技术重点实验室,石家庄,050081
基金项目:国家自然科学基金项目,通信网信息传输与分发技术重点实验室开放课题
摘    要:由于无线信道的复杂特性,使得无线多跳自组网在实际应用中的可靠、可用性和实时性均难以得到有效保障.对此,提出了面向时延约束下最大化带宽利用率的集中式多跳自组网络协议参数设计策略.基于无线多跳网络集中式通信调度机制,在网络参数、业务参数、协议参数的基础上充分考虑信道参数带来的影响,建立端对端时延模型和带宽利用率模型.数值仿真结果表明,集中式调度机制更适用于节点规模较小的多跳自组网络.基于上述模型增加时延约束确定网络规模,以最大化控制时隙利用率为目标设计协议参数,使网络带宽利用率在满足时延约束的前提下最优.

关 键 词:多跳自组网  集中式  端对端时延  带宽利用率  网络参数  协议参数

Performance Modeling and Analysis of Multi-Hop Ad Hoc Network under Delay Constraint
Abstract:Wireless multi-hop ad Hoc network has been widely used in military battlefield, emergency communication and so on. However, due to the complicate characteristics of wireless channel, it is diffi-cult to obtain reliable protection and real-time reliability in practice. A design strategy on protocol param-eters for centralized multi-hop ad Hoc network was proposed to maximize the bandwidth utilization under delay constraint. Based on centralized wireless multi-hop ad Hoc network communication mechanism, an end-to-end delay model and a bandwidth utilization model were established, which fully consider the im-pacts of four aspects of parameters, network, traffic, protocol and channel. It is shown that the central-ized scheduling mechanism is more suitable for the smaller network. Finally, an optimization strategy was given to properly design protocol parameters in different network scenarios under delay constraint.
Keywords:multi-hop ad Hoc network  centralized  end-to-end delay  bandwidth utilization  network parameters  protocol parameters
本文献已被 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号