http://www.iaeme.com/IJCET/index.asp 99 editor@iaeme.com International Journal of Computer Engineering & Technology (IJCET) Volume 8, Issue 5, Sep-Oct 2017, pp. 99–106, Article ID: IJCET_08_05_011 Available online at http://www.iaeme.com/ijcet/issues.asp?JType=IJCET&VType=8&IType=5 Journal Impact Factor (2016): 9.3590(Calculated by GISI) www.jifactor.com ISSN Print: 0976-6367 and ISSN Online: 0976–6375 © IAEME Publication STUDY OF SECURITY ENHANCEMENT IN AODV ROUTING PROTOCOL IN AD HOC NETWORKS Jayashree Agarkhed Professor, Department of Computer Science & Engineering, P.D.A College of Engineering, Kalaburagi, India ABSTRACT Ad hoc network is a dynamically formed network by collection of movable nodes with changing topology, due to nodes mobility and without having centralized administration. Nodes communicate by exchanging data with another node, establishing multi hop network. This type of communication needs vigilant design of routing protocols to satisfy various Quality of Service (QoS) parameters. There is a need to satisfy request of finding a route that utilizes sufficient available resources to meet the QoS constraints in order to achieve low cost or most stable route in real time and military applications. The study of Ad hoc On Demand Distance Vector (AODV) routing protocol has been presented along with security enhancement to AODV routing protocols. Key word: AODV, Routing, Security attack, Black hole, Sink hole. Cite this Article: Jayashree Agarkhed, Study of Security Enhancement in AODV Routing Protocol in Ad hoc Networks. International Journal of Computer Engineering & Technology, 8(5), 2017, pp. 99–106. http://www.iaeme.com/ijcet/issues.asp?JType=IJCET&VType=8&IType=5 1. INTRODUCTION Mobile Ad hoc networks (MANET) consist of nodes with mobility and get interconnect by multi hop communication. Nodes in an ad hoc network communicate directly with each other in a peer to peer manner due to lack of fixed infrastructure. The intermediate nodes act as router to provide communication between source and destination node. Each node to identify itself, broadcast periodically a beacon packet. MANET has wide range of applications such as commercial, health and industrial applications with cooperative huge mobile data exchange. There is a demand for existing and future application in military networking for robust, IP-compliant data services within these wireless mobile networks [1]. These networks consist of dynamic autonomous topology. Wearable computing provides wide applications for MANET technology. MANET technology when combined properly with satellite information system, provide a method for flexible communications establishment to assure safety operations with efficient, survivable, dynamic networking. Most of the applications of