Tscha Yeong Hwan, Sung Hyeon Kyeong

The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 2, No. 1, pp. 81-94, Jan. 1995
10.3745/KIPSTE.1995.2.1.81,   PDF Download:

Abstract

By intergrating technologies for portable computers, radio communications, and computer networking, the Land Mobile Computer Network(LMCN) is supposed to overcome the time and space limitation of present computer communication networks. However, because the MHs(mobile hosts) do move any time, the network connectivity is often changed causing temporarily duplicated, lost, or out-of-sequenced message delivery as well as frequent communications for maintainning the network connectivity. Previous works solved the problems through message flooding, used also in multicasting, resulting in high communication cost(i.e., number of communication messages). In this paper, new protocols for efficient mobility management and multicasting are proposed. The protocols define location update, handover, and multicasting procedure of a MH over a hierarchical LMCN architecture. The protocol specification is presented, and it is shown that the communication cost of the new protocols is superior to the existing ones in terms of the communication cost.

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