Security Enhancements of AODV Protocol: A Comparative Study
English

A.Rani chitra, V.Lakshmi Praba
2014 International Journal of Innovative Research in Computer and Communication Engineering  
Ad hoc networks are a new-fangled wireless networking paradigm for mobile nodes. Unlike traditional wireless networks, ad-hoc networks do not rely on any fixed infrastructure. Instead, the mobile nodes rely on each other to share the information. The main dispute in designing these networks is their susceptibility to security attacks. The increase in number of applications of ad-hoc networks depends on a large number of factors, with reliability being one of the key challenges to be met. Ad-hoc
more » ... On-Demand Distance Vector (AODV) is one of the extensively used protocols which do not satisfy the various security requirements like availability, confidentiality and integrity. This paper discusses the various security requirements for the ad-hoc networks and the various security enhancements of AODV protocol. The traditional routing protocols may lead to untrusted environment due to misbehaving nodes in the network environment. Therefore, the use of routing protocols with security features is essential to ensure data reliability for the end users. However, many technological challenges are to be overcome in designing and securing wireless ad-hoc networks. The paper presented here considers the existing reactive routing protocol AODV (Ad-hoc On Demand Vector). This protocol has been enhanced with added security feature using various cryptographic techniques. Hence, the security enhancement of AODV has been studied and compared in this paper. This paper is organized as follows; Section II describes the literature survey, Section III describes the security services. Section IV describes security in ad-hoc networks. In Section V the various security enhancement of AODV is studied and compared. Section VI presents the conclusion. II. LIREATURE SURVEY Unlike the wired networks, the Ad-hoc Network poses some unique characteristics and includes a number of nontrivial disputes in designing architecture. MANET includes issue such as multicast routing, clustering, mobility pattern management, QoS and Security. At present, Routing, QoS and Security are the hot topics of Research. This paper focuses only on the security aspects of the networks. It is vital to protect the network from different kinds of security threats. This is primarily due to the high dynamic nature of the ad-hoc network and due to the need to operate efficiently with limited resources. The overall goal of the security solutions for ad-hoc networks is to provide security services to the users. A number of routing protocols with security features have been developed which employ a variety of cryptographic tools for protecting the vulnerabilities in different routing protocols. However, these protocols have been developed to specific problems that arose due to the attacks on routing protocols. One of the most important protuberant communication protocols in Ad-hoc Network is AODV protocol. However this protocol still has many weaknesses, which attracted many researchers to develop new protocols based on the existing traditional protocol AODV. In this paper, [7 -16] shows the enhancement of AODV with added security features.
doi:10.15680/ijircce.2014.0212020 fatcat:tz3rmtxqdfbylb4b52wacd27na