The routing protocol Mobile IP was introduced in 1996 to facilitate wireless networking and mobile communication. The problem one encounters using Mobile IP is, when a mobile node (MN) hands off between different agents, packets may get lost or the node, itself, may get disconnected. To ameliorate the problem, a number of handoff schemes have been proposed. However, these schemes work only in ideal topologies, where there is sufficient overlap of signals. This article aims to reduce handoff latency, to attain seamless communication, even in tough topologies, by adding a recording feature to every agent to preserve the information of neighboring agents. Based on the recorded neighbor information, our new scheme can help a migrating MN keep receiving packets during the handoff period to attain the desired seamless connections, even in the toughest topologies.
Journal of the Chinese Institute of Engineers 35(5), pp.555-565