Co-operative analysis of Proactive and Reactive Protocols Using Dijkstra’s Algorithm K.THAMIZHMARAN*, AKSHAYA DEVI ARIVAZHAGAN**, M.ANITHA*** Dept.of Electrical Engineering* & ***, Dept.of Electronic and Communication Engineering** Annamalai University*, Periyar Manoyammai University** Assistant Professor*, Master of Engineering**, Associate Professor***, CHIDAMBARAM, TAMILNADU, INDIA tamil5_happy@yahoo.co.in, akshayaarajasri@gmail.com , vishanitha@gmail.com ABSTRACT: - Ad hoc networking provides movable devices to establish communication independent of a main infrastructure. However, the fact that there is no main infrastructure and that the devices can move randomly gives rise to various kind of problems, such as routing and security. In this system, path routing and protocol selection are the primary strategies to design any wireless network. In mobile Adhoc network (MANET) the selected protocol should have best in terms data delivery and data integrity. Hence, the performance analysis of the protocols is the main step before selecting a particular protocol. Selection of the protocols and path routing are the most common strategies that are to be focused while designing any kind of wireless networks such as MANETs, WSNs, WMNs and VANETs. MANETs A lot of challenges which are facing wireless MANETs like network stability, security, and energy. In this paper, using Dijkstra’s Algorithm and to find shortest path, and hence to carrying out the performance analysis on Adhoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR), Optimized Link State Routing (OLSR) and Destination Sequenced Distance Vector (DSDV) protocols using NS2 simulator. The end-to-end delay, throughput and packet delivery ratio are the three parameters we are using for the comparison of performance of routing protocols. Keywords: - MANET, Routing Protocols, Dijkstra’s Algorithm. 1 Introduction Now a day’s mobile ad-hoc protocol acting an essential part in a wireless atmospheres. Today mobile network has become a primary element of recent communication infrastructure for its applications in mobile and personal communications. The strength of mobile ad-hoc technologys is that the mobile devices can be used anywhere and at any time. In mobile ad-hoc network, all devices work as a router or end node, which participate an significant function during safeguarding and searching of routes. The breakdown of a mobile device can critically modify the performance of an ad - hoc network. each node maintain one or more tables to store routing information, whenever any changes in network topology then they respond by propagating updates messages throughout the network in order to maintain consistent network view. The process is completed when a route is found or all possible routes have been examined. Once the route has been established, some form of route maintenance procedure maintains it until the routes is no longer desired. MANET is a collection of wireless devices that set up the relationship between wireless nodes exclusive of centralized management and infrastructure [1, 18, 20]. The wireless nodes are proficient of shifting their location and connect each other randomly in a wireless network. The whole procedure replicates, during finding the whole route, the destination mobile device sends route reply message to the source mobile device for successful route making and searching procedure [2, 16]. The arrangement of route detection and preservation is the important process functioning in DSR [3]. The proactive routing protocol Bellman-Ford method Recent Advances in Electrical Engineering and Electronic Devices ISBN: 978-1-61804-266-8 224