Position based routing protocol with more reliability in Mobile Ad Hoc Network

摘要

Position based routing protocols are kinds of routing protocols, which use nodes location information, instead of links information to routing. In position based routing protocols, it supposed that the packet source node has position information of itself and it's neighbors and the packet destination node. Greedy is a very important position based routing protocol. In one of it's kinds, named MFR (Most Forward Within Radius), the source node or packet forwarder node, sends packet to one of it's neighbors with most forward progress towards destination node (closest neighbor to destination). Using distance deciding metric in Greedy to forward packet to a neighbor node, is not suitable for all conditions. If closest neighbor to destination node, has high speed, in compare with the source node or intermediate packet forwarder node speed or has very low remained battery power, then the packet loss probability will increase. The Proposed strategy uses combination of metrics distance-velocity similarity-power, to deciding about to which neighbor the packet should be given. Simulation results show that the proposed strategy has lower lost packets average than Greedy, so it is more reliable.