Flush primitives for asynchronous distributed systems
Information Processing Letters
Comparing four IP based mobile host protocols
Selected papers of the 4th joint conference on European networking conference
Routing in communications networks
Routing in communications networks
A framework for delivering multicast message in networks with mobile hosts
Mobile Networks and Applications - Special issue: routing in mobile communications networks
IEEE Transactions on Software Engineering
Reliable Communication for Highly Mobile Agents
ASAMA '99 Proceedings of the First International Symposium on Agent Systems and Applications Third International Symposium on Mobile Agents
Surrogate object based data mining for distributed mobile systems
Proceedings of the 9th International Conference on Advances in Mobile Computing and Multimedia
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As computing components get smaller and people become accustomed to having computational power at their disposal at any time, mobile computing is developing as an important research area. One of the fundamental problems in mobility is maintaining connectivity through message passing as the user moves through the network. An approach to this is to have a single home node constantly track the current location of the mobile unit and forward messages to this location. One problem with this approach is that, during the update to the home agent after movement, messages are often dropped, especially in the case of frequent movement. In this paper, we present a new algorithm which uses a home agent, but maintains information regarding a subnet within which the mobile unit must be present. We also present a reliable message delivery algorithm which is superimposed on the region maintenance algorithm. Our strategy is based on ideas from diffusing computations as first proposed by Dijkstra and Scholten. Finally, we present a second algorithm which limits the size of the subnet by keeping only a path from the home node to the mobile unit.