IJSRSET1848144 | Received : 07 June 2018 | Accepted : 18 June 2018 | May-June-2018 [ 4 (8) : 528-532] © 2018 IJSRSET | Volume 4 | Issue 8 | Print ISSN: 2395-1990 | Online ISSN : 2394-4099 Themed Section : Engineering and Technology 109 A Comparative Study : Reviewing Performance of Routing Protocols in Mobile Ad-hoc Network Deepali Aggarwal * , Shivani Gaba CSE, N.C. College of Engineering, Israna, Distt. Panipat, Haryana, India ABSTRACT Mobile Ad-hoc Network is nothing but a collection of hosts which are mobile and can configure, organize and maintain themselves according to the network. It is an independent network where the nodes are connected to other nodes through wireless links. The nodes are mobile in nature and don’t need any organization, configuration, and administration. As the network topology frequently changes due to the mobility of nodes, routing in such network becomes extremely difficult. Routing solves various concerns related to network like its dynamic topology, bandwidth, overhead, delay, traffic etc. Hence based on the above issues, a comparative study has been done between the reactive, proactive and hybrid protocols on the basis of their pros and cons, to evaluate the performance of all 6 protocols (DSDV, OLSR, AODV, DSR, ZRP and FSR). So that it would be easy to choose an efficient routing protocol based on network complexity. Keywords: Mobile ad-hoc network, Routing Protocols, DSDV, OLSR, AODV, DSR, ZRP, FSR I. INTRODUCTION This Mobile Ad-hoc Network is nothing but a collection of hosts which are mobile and can configure, organize and maintain themselves according to the network. Host node provides information from/to other nodes and router discovers and maintains routes for other nodes in the networks. These mobile hosts communicate with each other through wireless channels having no centralized control [4]. Those routing protocols that not only discover but also store more than one route in the routing table for each destination node are called to be multipath routing protocols. As the routes are broken in the wireless network due to movement of nodes, hence transmission of data becomes unreliable and prone to error. In order to overcome the unreliability, load, congestion and fault in the wireless network due to the use of single path routing protocols, multipath routing protocols are being used [14]. In mobile ad hoc network, nodes communicate with one another using multi-hop wireless links. Each node acts as a router and host in its respective network. Under the wireless network, all nodes are given an ability to communicate with the rest of the network while being mobile. Intermediate nodes are used to route the nodes which are out the range to bring them back into the network. Dynamic topology, Energy, security and bandwidth are some constraints of Mobile ad hoc network[1]. To furnish and maintain the network, antennas are being used in the form of wireless transmitters and receivers. II. LITERATURE REVIEW An In 2007, Ismail, D. Jaafar, M. “Mobile ad hoc network overview”, provided communication between the network, under which a routing protocol was employed in order to find routes in between nodes[3]. The main goal of such mobile ad-hoc