Mobility Support for Content Source in Content-Centric Networking  

作　　者：HUANG Tao LI Jiangxu LIU Jiang ZHANG Yunyong LIU Yunjie 

机构地区：[1]State Key Laboratory of Networking and Switching Technology,Beijing University of Post and Telecommunications [2]China Unicom Research Institute

出　　处：《China Communications》2015年第3期95-105,共11页中国通信（英文版）

基　　金：supported by the National Basic Research Program(973) of China(No.2012CB315801);the National Natural Science Fund(No.61302089,61300184)

摘　　要：Content-centric networking(CCN) is rising to solve the problems suffered by traditional networks,especially in terms of content delivery.One of the critical issues for basic CCN is supporting mobility.Handoff of Mobile Content Source(MCS) will result in a large scale routing update,which generates huge amount of routing overhead and leads to service interruption.Most of the existing CCN mobility mechanisms are transplanted from the IP mobility solutions,which are unnaturally integrated with CCN.Different from previous works,a mobility strategy from the perspective of CCN architecture is proposed to support the handoff of MCS in this paper.Especially,we define the critical network routers that can limit the routing update scale effectively when MCS handoff is conducted.Based on the defined critical network routers,the proposed scheme can provide lower routing update overhead,faster routing convergence and shorter service interruption time.Finally,series of simulations are conducted to validate the effectiveness of our proposed scheme.Content-centric networking（CCN） is rising to solve the problems suffered by traditional networks,especially in terms of content delivery.One of the critical issues for basic CCN is supporting mobility.Handoff of Mobile Content Source（MCS） will result in a large scale routing update,which generates huge amount of routing overhead and leads to service interruption.Most of the existing CCN mobility mechanisms are transplanted from the IP mobility solutions,which are unnaturally integrated with CCN.Different from previous works,a mobility strategy from the perspective of CCN architecture is proposed to support the handoff of MCS in this paper.Especially,we define the critical network routers that can limit the routing update scale effectively when MCS handoff is conducted.Based on the defined critical network routers,the proposed scheme can provide lower routing update overhead,faster routing convergence and shorter service interruption time.Finally,series of simulations are conducted to validate the effectiveness of our proposed scheme.

关 键 词：CCN mobility handoff routing overhead QoE 

分 类 号：TN929.5[电子电信—通信与信息系统]