An improved agent-based routing protocol for mobile ad-hoc networks.

摘要

A mobile ad-hoc network is an infrastructureless network temporarily formed by wireless mobile nodes. A mobile node can act as a router forwarding data packets between other nodes. The dynamic changes of network topology have been a challenge for routing data packets across the ad-hoc networks.; Inspired by the cooperative effort of ants on finding optimal path to food sources, researchers have used the social ant metaphor to develop mobile agent routing protocols. The agent population is an important parameter in an agent-based protocol. In the Mobile Agent Routing Protocol (MAR), a global registry of mobile agents was used; however, we believe that it is not realistic to apply a global data structure in an ad-hoc network.; In this thesis, we introduce an improved agent-based ad-hoc routing protocol, LMAR, to remove the global registry and use only local information of a node to build the routing table. Extensive experiments were carried out using the simulator NS-2 to compare the network performance of LMAR with other three ad-hoc routing protocols, MAR, AODV and DSDV. The simulation results of the t-Test show that the LMAR has almost the same performance as the MAR.