IJSTE - International Journal of Science Technology & Engineering | Volume 1 | Issue 12 | June 2015 ISSN (online): 2349-784X All rights reserved by www.ijste.org 135 A Reinforcement Learning Network based Novel Adaptive Routing Algorithm for Wireless Ad-Hoc Network Jagrut Solanki Anand Chauhan M.E Student Assistant Professor Department of Computer Science & Engineering Department of Computer Science & Engineering Narnarayan Shastri Institute of Technology, Jetalpur, Gujarat, India Narnarayan Shastri Institute of Technology, Jetalpur, Gujarat, India Abstract Ad hoc network is a collection of mobile nodes which dynamically form a temporary network without any infrastructure or centralize entity. There are number of routing protocol exists in ad hoc network and this protocols have been compared. These protocols are like DSR (Dynamic Source Routing), AODV (Ad-hoc On Demand Distance Vector Routing Algorithm), and TORA (Temporally Ordered Routing Algorithm) like more. AODV is Reactive routing protocol. We modify the existing AODV protocol. All Routing Protocol have different Strategies of routing like End to End delay, Packet delivery ratio, Traffic overhead and Power Consumptions. Routing Deals with route discovery between source and destination. Aim of Dissertation is to improve route error tolerance mechanism of AODV. In our propose scheme the transmission starts from closest neighbor node if the link fail in middle of the transmission. That shows very important reductions in delay and it improves the packet delivery ratio. It also reduces the routing overhead by reducing frequency of route discovery process. Keywords: MANET, AODV, DSR, ZRP ________________________________________________________________________________________________________ I. INTRODUCTION A mobile ad hoc network is a collection of Different mobile nodes that are connected by wireless links there is no fixed infrastructure or centralize entity. In MANET every node not only act as only host but also as a router .Every device in MANET is independently movable device in any direction and according to that modification of their link frequently changes. Different Routing Protocols are divided into 3 categories 1) Reactive (On Demand) 2) Proactive (Table Driven) 3) Hybrid In Proactive Every node maintain its own routing table and contain every route entry of other nodes within the network. In Reactive if node want to send a packet to destination and that is not reachable then node initiates the route discovery process to find the destination node to deliver the message. The goal of the ad hoc routing protocol is to supply correct and effective route establishment between pair of different nodes and in order of that message could also delivered on time Proactive protocols are also known to be Table Driven Protocols like OLSR DSDV in that every node maintains routing information in routing table of all nodes while reactive routing protocols are known to be an on demand protocols because they initiate route discovery when that needed, the protocols are like AODV, DSR. Hybrid protocols are combination of Reactive and Proactive Routing Protocols that are like ZRP Fig. 1: RREQ and RREP messages in MANET using AODV