Author(s)

Yu Hao

Corresponding Author

Yu Hao

Abstract

Due to the quick mobility of node in MANETs (Mobile Ad Hoc Networks), it makes the communication path maintaining the source node and destination node become a challenging work. The high-speed mobility of node results in the frequent disconnecion of communication link. Hence, to be able to better cope with the high-speed mobility environment, the router protocol for connection of Virtual router based on the mobility degree of node is proposed, denoted as MDNVRP (mobility degree of node-virtual router protocol). Even though MDNVRP protocol is connection-oriented, what is established prior to data delivery is virtual connection, but not physical connection. The virtual router is the logical router concerning specific geographic region, which is composed of one or multiple mobile nodes within geographic region. The physical node within the geographic region where the virtual router is sets the timer of forwarding packets in accordance with the mobility degree of node, in which the small the mobility degree is, the shorter the duration of timer is, that is, it has the precedence right to forward the packets . The simulation result shows that compared to AODV, the performance of EED (End-to-End delay) , route overhead and RPD (Ratio of Packets Delivered) of MDNVRP proposed in the router protocol proposed have all been significantly improved.

Keywords

Ad Hoc Networks, Node Mobility, Virtual Connection, Virtual Router, Geographic Region