Mobility management is an essential component in enabling mobile hosts to move seamlessly from one location to another while maintaining the packet routing efficiency between the corresponding hosts. One of the concer...Mobility management is an essential component in enabling mobile hosts to move seamlessly from one location to another while maintaining the packet routing efficiency between the corresponding hosts. One of the concerns raised with the internet engineering task force(IETF)mobile IP standard is the excessive signaling generated for highly mobile computers. This paper introduces a scheme to address that issue by manipulating the inherent client-server interaction which exists in most applications to provide the correspondent host with the current mobile host binding. To evaluate the performance of the scheme, typical internet application sessions involving a mobile host is simulated and the signaling and routing costs are examined. Results show a substantial reduction in the mobility management overhead as well as the total cost of delivering packets to the mobile host.展开更多
Taking into chief consideration the features of aviation nodes in satellite networks, such as high moving speed, long communication distance, and high connection frequency, this article proposes an aviation-oriented m...Taking into chief consideration the features of aviation nodes in satellite networks, such as high moving speed, long communication distance, and high connection frequency, this article proposes an aviation-oriented mobility management method for IP/low earth orbit （LEO） satellite networks. By introducing the concept of ground station real-time coverage area, the proposed method uses ground-station-based IP addressing method and cell paging scheme to decrease the frequency of IP binding update requests as well as the paging cost. In comparison with the paging mobile IP （P-MIP） method and the handover-independent IP mobility management method, as is verified by the mathematical analysis and simulation, the proposed method could decrease the management cost. It also possesses better ability to support the aviation nodes because it is subjected to fewer influences from increased node speeds and newly coming connection rates.展开更多
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 managemen...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.展开更多
In this paper,several currently existed Mobility Management Schemes of Mobile IP are simply analyzed,and so does the network structure of multi-tier cellular which nowadays is easily seen. Then we propose a few promo-...In this paper,several currently existed Mobility Management Schemes of Mobile IP are simply analyzed,and so does the network structure of multi-tier cellular which nowadays is easily seen. Then we propose a few promo-tions on the strategies of mobility management when realizing mobile IP in multi-tier cellular network structure. Thekey of the promotions is that the required type of cell for a MN is determined based on the classification of its mobilitypattern. Consequently,the capacity of system may be increased while the frequency of handoff is decreased.展开更多
文摘Mobility management is an essential component in enabling mobile hosts to move seamlessly from one location to another while maintaining the packet routing efficiency between the corresponding hosts. One of the concerns raised with the internet engineering task force(IETF)mobile IP standard is the excessive signaling generated for highly mobile computers. This paper introduces a scheme to address that issue by manipulating the inherent client-server interaction which exists in most applications to provide the correspondent host with the current mobile host binding. To evaluate the performance of the scheme, typical internet application sessions involving a mobile host is simulated and the signaling and routing costs are examined. Results show a substantial reduction in the mobility management overhead as well as the total cost of delivering packets to the mobile host.
基金National Natural Science Foundation of China (60532030)National Natural Science Foundation for Distinguished Young Scholars (60625102)
文摘Taking into chief consideration the features of aviation nodes in satellite networks, such as high moving speed, long communication distance, and high connection frequency, this article proposes an aviation-oriented mobility management method for IP/low earth orbit （LEO） satellite networks. By introducing the concept of ground station real-time coverage area, the proposed method uses ground-station-based IP addressing method and cell paging scheme to decrease the frequency of IP binding update requests as well as the paging cost. In comparison with the paging mobile IP （P-MIP） method and the handover-independent IP mobility management method, as is verified by the mathematical analysis and simulation, the proposed method could decrease the management cost. It also possesses better ability to support the aviation nodes because it is subjected to fewer influences from increased node speeds and newly coming connection rates.
基金Project (No.61032003) supported by the National Natural Science Foundation of China
文摘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.
文摘In this paper,several currently existed Mobility Management Schemes of Mobile IP are simply analyzed,and so does the network structure of multi-tier cellular which nowadays is easily seen. Then we propose a few promo-tions on the strategies of mobility management when realizing mobile IP in multi-tier cellular network structure. Thekey of the promotions is that the required type of cell for a MN is determined based on the classification of its mobilitypattern. Consequently,the capacity of system may be increased while the frequency of handoff is decreased.
