摘要
针对当前航空应急投送信息传输方法存在丢包率高和信息传输时延高等问题,提出航空应急投送信息传输可靠性优化设计方法,在引入区分服务思想的基础上,计算航空应急投送信息的重要性,根据信息重要性划分航空应急投送信息在传输过程中的优先级,按照优先级将航空应急投送信息划分到对应的传输队列中,检测网络的单向延迟和可用带宽,预测网络的拥塞状况,结合检测结果和预测结果根据链路传输能力因子选择航空应急投送信息队列的传输路径,完成航空应急投送信息的传输。仿真结果表明,所提方法传输航空应急投送信息的丢包率低、传输时延低。
Due to high packet loss rate and high information transmission delay of current aviation emergency delivery information transmission method,this paper puts forward a method of optimizing the reliability design of aviation emergency delivery information transmission.By introducing the idea of differentiated service,the importance of aviation emergency delivery information was calculated.On this basis,the priority of aviation emergency delivery information in the transmission process was divided.According to the priority,the aviation emergency delivery information was categorized into corresponding transmission queues.Moreover,the one-way delay and available bandwidth of network were detected.Then,the network congestion was forecasted.Combined with the detection result and the prediction result,the link transmission capability factors were used to select the transmission path of aviation emergency delivery information queue is selected,and thus to complete the transmission of aviation emergency delivery information.Simulation results prove that the packet loss rate and transmission delay of proposed method is lower in transmitting the aviation emergency delivery information.
作者
王建华
王虎贲
WANG Jian-hua;WANG Hu-ben(Air Force Service College,Xuzhou Jiangsu 221000,China)
出处
《计算机仿真》
北大核心
2020年第8期126-129,共4页
Computer Simulation
基金
江苏省地区科研项目(JU2016051112)。
关键词
航空应急投送信息
信息传输
传输时延
Aviation emergency delivery information
Information transfer
Transmission delay
