Abstract:

The DSR protocol is a typical multihop routing protocol on demand, which can connect the existing networks in a seamless way and can adapt to the dynamic changes of the networks. In order to satisfy the demand of wireless Mesh networks, this paper proposes a security enhanced multipath DSR routing protocol—the SE_DSR protocol in wireless Mesh networks based on analyzing the DSR protocol. This protocol adopts the multipath routing discovery mechanisms to provide loadbalancing and faulttolerant capability, and adopts the twoway path trust assessment and oneway certificate chain verification mechanisms to enhance security. Compared with the traditional security protocols, the SE_DSR protocol can ensure the routing security, which,at the same time, shortens the routing discovery delay and increases the data transfer rate, with a little more storage overhead. Performance analysis and simulation experiments show that the protocol can defend various attacks effectively, while providing loadbalancing and faulttolerance capability, with a higher network throughput and stronger security performance.

Key words: wireless mesh network;multipath routing;secure routing;dynamic source routing