基于单向卫星网络的丢包模型及UDP数据抗干扰编码研究  

Research on the Anti-interference Coding of Packet Loss Model and UDP Data over Unidirectional Satellite Network

作　　者：谈云钢[1] 

机构地区：[1]上海交通大学计算机科学与技术系

出　　处：《微型电脑应用》2009年第2期4-7,4,共4页Microcomputer Applications

摘　　要：根据单向卫星的数据传输特性,分析并建立了基于Gilbert-Elliot模型的单向卫星传输信道丢包仿真模型,研究一种适合于在单向卫星信道上传输的高效实时的编码技术和算法,以提高信道可用度,同时又注重信道利用率,尽量节省昂贵的卫星带宽。并搭建仿真实验环境,检验编码后数据传输的抗干扰能力,以及编码效率是否符合一般的传输业务需求。In this paper,we analyze and establish a simulated packet loss channel model based on Gilbert-Elliot model by studying the characteristics of unidirectional satellite data channel,and research on a kind of effective and real time error-correct coding technology and algorithm over unidirectional satellite network.The size of generated redundancy data must be as small as possible to save the expensive satellite bandwidth.In the last part of the paper, we establish an experimental environment to simulate the typical packet loss situation in unidirectional satellite network,and try to validate the usability and efficiency of the coding algorithm and check whether the coding speed is suitable for the common data transfer business.

关 键 词：纠错编码 UDP 单向卫星 Gilbert—Elliot模型 

分 类 号：TN927[电子电信—通信与信息系统]