An IP mobility management scheme with dual location areas for IP/LEO satellite network  

作　　者：Zhu ZHANG Qing GUO 

机构地区：[1]Communication Research Center,Harbin Institute of Technology,Harbin 150001,China

出　　处：《Journal of Zhejiang University-Science C(Computers and Electronics)》2012年第5期355-364,共10页浙江大学学报C辑（计算机与电子（英文版）

基　　金：Project (No.61032003) supported by the National Natural Science Foundation of China

摘　　要：One of the issues of mobility management in a low Earth orbit (LEO) satellite network is the high-frequency location binding update initiated by mobile nodes (MNs).To solve this problem,we propose a location management scheme based on dual location area (LA) in an IP/LEO satellite network.The proposed scheme uses two kinds of LA,the fixed Earth station LA and satellite LA,to manage the location of the MNs together.MNs operate the binding update procedures only when they are moving out of both of the two LAs last registered.Geographical location information of MN is used in the binding update procedures,so that the network can page the idle MNs near their last registered location first,to enhance the probability of paging success.A detailed description of the implementation of the scheme is provided.Mathematical analysis shows that the proposed scheme reduces the location management cost and minimizes the influences of the distance between MN and its home agent.Paging cost is also reduced by introducing geographical location information in the binding update procedures.One of the issues of mobility management in a low Earth orbit （LEO） satellite network is the high-frequency location binding update initiated by mobile nodes （MNs）. To solve this problem, we propose a location management scheme based on dual location area （LA） in an IP/LEO satellite network. The proposed scheme uses two kinds of LA, the fixed Earth station LA and satellite LA, to manage the location of the MNs together. MNs operate the binding update procedures only when they are moving out of both of the two LAs last registered. Geographical location information of MN is used in the binding update procedures, so that the network can page the idle MNs near their last registered location first, to enhance the probability of paging success. A detailed description of the implementation of the scheme is provided. Mathematical analysis shows that the proposed scheme reduces the location management cost and minimizes the influences of the distance between MN and its home agent. Paging cost is also reduced by introducing geographical location information in the binding update procedures.

关 键 词：Location management IP/LEO satellite network Mobile IP (MIP) GPS 

分 类 号：TN915.81[电子电信—通信与信息系统]