Abstract: Since every node in Ad hoc networks acts as both a host and a router, routing protocol is a main research issue in the Ad hoc wireless networks. Various routing protocols have been put up in recent years by researchers around the world, and the related performance analysis and evaluation of academic studies have become hot. This paper compares three typical Ad hoc routing protocols which is AODV, GPSR and ADV, makes the performance analysis and evaluation on packet delivery ratio, routing cost ,average endtoend delay and throughput of UDP and TCP traffic by simulation.

Key words: Ad hoc networks, routing protocol, AODV, ADV, GPRS