自适应的ICN移动性机制  

Adaptive mechanism to address mobility in ICN

作　　者：王学芹 李双远 史岚 尹鹏 Wang Xueqin;Li Shuangyuan;Shi Lan;Yin Peng(Information Center,Jilin Institute of Chemical Technology,Jilin Jilin 132022,China;College of Computer Science&Engineering,Northeastern University,Shenyang 110169,China)

机构地区：[1]吉林化工学院信息中心,吉林吉林132022 [2]东北大学计算机科学与工程学院,沈阳110169

出　　处：《计算机应用研究》2020年第10期3139-3142,3152,共5页Application Research of Computers

基　　金：国家自然科学基金资助项目(617124253);吉林化工学院科研项目(2018015)。

摘　　要：信息中心网络(ICN)内在地支持兴趣请求者移动而不支持内容提供者移动,然而在实际的场景中往往发生的是内容提供者移动。当前的移动性解决方案存在一些缺憾,如没有真正地考虑移动设备的加入/离开、机制过于单一不能应对各种移动场景、网络切换时延过长等。为解决上述问题,面向区域划分设计一种自适应的移动性机制,包括基于汇聚点的域内移动解决方案、基于兴趣转发的域间移动解决方案和基于回溯的基站间移动解决方案。仿真在GTS网络拓扑上进行,实验结果表明所提的移动性机制较基准机制有高的分发率、低的切换时延和少的路由跳数,说明所提的移动性机制具有广泛的应用价值,为推动诸如5G应用的全面落地具有现实的意义。ICN inherently supports the mobility of interest requester but doesn’t support that of content provider which happens in the actual applications.However,the current solutions on mobility has some limitations to be improved,such as without the join or leave of mobile devices consideration,too simple to address all mobile scenarios and consuming large handoff delay.Therefore,oriented domain division,this paper proposed an adaptive mechanism to address mobility,including intra-domain solution based on rendezvous point,inter-domain solution based on interest forwarding and inter-base station based on backtrack.The simulation was made on GTS network topology.The experimental results demonstrate that the proposed mechanism has better performance than the baseline in terms of delivery ratio,handoff delay and routing hops.In addition,it indicates that the proposed mobility mechanism has the wide application value and practical significance,especially for promoting the comprehensive achievement of 5G.

关 键 词：信息中心网络 移动性 切换时延 自适应机制 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]