多端口自适应UDP通信协议的设计与实现  

Design and implementation of multi-port adaptive UDP communication protocol

作　　者：张新[1,2] 饶若楠[2] 郭宁[1] 张文兵[1] 

机构地区：[1]中国航空无线电电子研究所软件部,上海200233 [2]上海交通大学软件学院,上海200233

出　　处：《计算机工程与设计》2017年第4期846-851,共6页Computer Engineering and Design

基　　金：国家973重点基础研究发展计划基金项目(2014CB744900)

摘　　要：为解决嵌入式机载设备在UDP协议重建链路过程中丢失实时数据的问题,提出一种多端口自适应UDP通信协议MP-UDP。通过建链、数据确认、重传等机制进行正常通信,在当前链路重传3次失败需要重建时,利用RMP(Rank_Move_Program)算法以自适应的方式迁移到新的端口链路上进行通信。在Simulink中建立客户端和服务端模型,以图形化的方法实现MP-UDP协议。实验结果表明,与UDP协议相比,MP-UDP协议在链路重建时能自动进行链路迁移,丢包率远小于UDP协议,能够保证实时数据不丢失。To solve the problem of the real-time data loss in the process of the UDP protocol link reconstruction for the embedded airborne equipment, the multi-port adaptive communication protocol MP-UDP was proposed. Building the link, data validation and retransmission were used to communicate properly. When the current link needed to be rebuilt after three times of retrans- mission, the RMP （Rank_ Move _ Program） algorithm was used to migrate the communication from the current link to the new link adaptively. The models of client and server were established in the Simulink to implement the MP-UDP protocol with graphi- cal approach. The results of verification experiment, which were compared to UDP protocol, indicate that the link can be migra- ted automatically in the process of the reconstruction, the packet loss rate is far less than the UDP protocol, and the real-time da- ta are ~uaranteed not to lose.

关 键 词：MP-UDP协议 RMP算法 链路重建 自适应迁移 SIMULINK模型 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]