An adaptive multichannel OLSR routing protocol based on topology maintenance

Network topology is essential for link-state routing protocols to discovery routes. It is acquired by periodical exchanging of update messages of topology. In wireless sensor networks, because of the moving of nodes, OLSR routing protocol will encounter topology´s missing and route table´s lacking. Hereto, we presented OLSR-TM, an adaptive multichannel OLSR routing protocol based on topology maintenance. It introduced topology´s perceiving and adaptive controlling into OLSR to adjust the transmission frequency of control messages and the transmission velocity of data, Theoretic analysis and simulation results show that OLSR-TM can address the foresaid problems and improve routing performance apparently.