Trust based Opportunistic Routing Admission Control in Wireless Ad Hoc Networks

For providing QoS in wireless ad hoc networks is difficult task because the network is decentralised network. The multi-hop nature of the network affects QoS in wireless networks. In routing scheme, if one node at the optimal path is down due to lack of available energy the path will be broken, and the source must have to re-route again. Introduced Opportunistics routing to solve this problem which improves performance. It is quite difficult to provide better QoS in Opportunistic Routing due to the uncertainty of forwarding paths in wireless as hoc networks. Most of the existing existing Opportunistic Routing ie OR protocols rarely consider providing service for different types of flows. It uses Admission Control of nodes for the different flows. The ORAC scheme manage a new alternative flow admission control scheme considering the factors bandwidth, backlog traffic and residual energy of nodes to select forwarding candidates. The existing work in OR considered either of QoS and security. So, in the proposed system, security issue in to account while adopting the ORAC scheme and to resolve issues of security we have used the trust value of the nodes

Keywords: Wireless ad hoc networks routing, traffic, bandwidth, energy.