Low-cost binding update scheme based on pointer forwarding in HMIPv6 network  

作　　者：LIU Yin-long ZENG Zhi-min XIA Hai-lun ZHANG Tian-kui HAO Xiao-yan 

机构地区：[1]School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China [2]Beijing National Railway Research and Design Institute of Signal and Communication, Beijing 100073, China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2010年第3期73-77,共5页中国邮电高校学报（英文版）

基　　金：supported by the Natural Science Foundation of Jiangsu Province (BK2009469);the Fundamental Research Funds for the Central Universities (BUPT2009RC0120);the National Natural Science Foundation of China (60772110)

摘　　要：By introducing a mobility anchor point （MAP）, hierarchical mobile IPv6 （HMIPv6） reduces the binding update signaling cost associated with mobile IPv6, but there still exist deficiencies. For instance, a mobile node （MN） needs to orderly accomplish two binding updates with the MAP and home agent （HA） when the MN performs inter-MAP mobility. This results in a high signaling cost, thus affecting network performance. To reduce the inter-MAP binding update cost of idle MN in HMIPv6, an optimization scheme based on pointer forwarding with a threshold is proposed. The scheme can reduces the binding update cost of idle MN by using the binding update between MAP to replace several home binding updates. The signaling cost difference is derived by analyzing the cost of the basic scheme and the optimization scheme between two successive sessions. Simulation results show that, the optimization scheme can reduce the binding update signaling cost and improve the network performance as long as a suitable threshold is chosen. The discussions on the sensitivity of tele-parameters are also given.By introducing a mobility anchor point （MAP）, hierarchical mobile IPv6 （HMIPv6） reduces the binding update signaling cost associated with mobile IPv6, but there still exist deficiencies. For instance, a mobile node （MN） needs to orderly accomplish two binding updates with the MAP and home agent （HA） when the MN performs inter-MAP mobility. This results in a high signaling cost, thus affecting network performance. To reduce the inter-MAP binding update cost of idle MN in HMIPv6, an optimization scheme based on pointer forwarding with a threshold is proposed. The scheme can reduces the binding update cost of idle MN by using the binding update between MAP to replace several home binding updates. The signaling cost difference is derived by analyzing the cost of the basic scheme and the optimization scheme between two successive sessions. Simulation results show that, the optimization scheme can reduce the binding update signaling cost and improve the network performance as long as a suitable threshold is chosen. The discussions on the sensitivity of tele-parameters are also given.

关 键 词：hierarchical MIPv6 binding update pointer forwarding signaling cost 

分 类 号：TN929.5[电子电信—通信与信息系统] TP393.4[电子电信—信息与通信工程]