The Study and Simulation of Multi-interface Extension for OLSR Protocol

Abstract

The way to improve the performance of the throughput in the wireless Mesh network is nodes with multiple interfaces. In view of the problem of multi-interface multi-channel extension for OLSR protocol, multi–interface multi-channel OLSR protocol is proposed. Nodes can have multiple network interfaces, but each node has only one IP, using the index of interface to distinguish the multiple interfaces of the node. Selected the receiving interface according to the channel, modified the message delivery method and introduces the protocol implementation and technology. Finally, the simulation is carried out by using the extended NS2. Simulation results show that extended OLSR protocol has high network performance, and improve the network throughput. What is new and original in this paper is adding multiple physical interface support for proactive protocol OLSR.