摘要
提出了一种数据链的链路层协议——基于动态优先级轮询的接入方式,在OPNET网络仿真开发平台上,构建出基于动态优先级轮询机制的时分多址(TDMA)数据链协议仿真模型,描述了在OPNET仿真平台上的建模过程,给出和分析了动态优先级轮询机制下TDMA数据链性能(地面站入网注册时间、网络吞吐量、中心站和地面站的信道利用率、业务接入时延)的仿真结果。仿真结果表明采用动态优先级轮询机制,系统接入效率高,对于各站点数据上行有较好的均衡性,同时又不失灵活性。
A kind of media access control (MAC) protocol for data link based on dynamic priority polling mechanism is Proposed, Using OPNET, this article constructs the simulating model of a time division multiple access (TDMA) data link based on dynamic priority polling mechanism, describes modeling process, and provides and analyses simulated results ofa TDMA data link's capability from four aspects: common ground station's login time, network throughput, channel using efficiency, and media access delay. Simulation results show that TDMA data link's throughput with dynamic priority polling mechanism is high, and it has excellent network access efficiency and controllability.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2008年第2期244-247,共4页
Journal of University of Electronic Science and Technology of China
基金
铁道部“铁路信息科学与工程”开放实验室基金(TDXX0502)
北京市“现代信息科学与网络技术”重点实验室科学基金