AN EFFICIENT INTEGRATED APPROACH FOR SERVICE AND ROUTE DISCOVERY IN MANETs

Abstract

Service discovery is an integral part of constructing self-configuring Mobile Ad Hoc Networks (MANETs).The Service Discovery process is initiated only when a node requires access to a service. The address of the service provider is returned to the initiator of the service discovery process. However, the initiator still has to discover a route to the service provider. By integrating service and route discovery, both the identity of the node providing the service and the route to the service are discovered together. This approach differs from related work on service discovery in ad hoc networks, which perform service discovery at the application layer and do not discover a route to the service. Our approach saves additional message transmissions required if the two processes were done separately at the application and network layers respectively. idea of adding service discovery to Reactive routing protocols for mobile ad hoc less networks was earlier proposed in an Internet-Draft using Ad Hoc On- :Zand Distance Vector Protocol (AODV) as the routing protocol. In this thesis, we proposed modifications and extensions to the Internet-Draft. We discuss solutions to the problem of notifying the nodes in the network when a service provider terminates its service. We present a simulation of the integration of service discovery with AODV. We then present a simulation of the integration of service discovery with the Dynamic Source Routing Protocol (DSR). Lastly, we compare the performance of service discovery with AODV and DSR. We find that integrating service discovery with AODV gives better results in terms of both the service latency and path length