Novel Security Mec
Novel Security Mechanism
to Improve QOS in MANET
P. Saravanan 1,
Dr. S. Chitra 2
1. Assistant Professor, Computer Science and
Engineering, M. Kumarasamy College of Engineering, Karur, India
2. Principal, Er.Perumal Manimekalai College of
Engineering, Hosur, India
Abstract: Nodes
cooperate to provide connectivity and operate without centralized
administration in a Mobile Ad Hoc Network (MANET). Routing is crucial for any
network as nodes transmit traffic in multihop fashion since communicating nodes
might be out of range. Consequently, each node in the network not only works
for itself, but must also be cooperative with other nodes. The presence of
selfish nodes degrades the security and quality of service (QoS) due to its
non-cooperative nature. Secure and reliable communications in MANETs due to the
presences of selfish/malicious nodes, unpredictable wireless media, and host
mobility is widely researched. In this paper, the concept of trust is
incorporated in the routing protocol to enhance the security and QoS of the
network. Managing trust in a MANET is challenging when cooperation is critical
to achieving system goals. Ad hoc On Demand Distance Vector (AODV) routing
protocol is enhanced with the addition of trust metrics in this study.
Simulations demonstrate the effectiveness of the enhanced AODV to perform
satisfactorily even in the presence of selfish nodes.
[P. Saravanan, S. Chitra. Novel Security
Mechanism to Improve QOS in MANET. Life
Sci J 2013;10(7s):505-509].
(ISSN: 1097-8135). http://www.lifesciencesite.com. 78
Keywords: Mobile
Ad hoc Networks (MANETs), Ad hoc On Demand Distance Vector (AODV), Selfish
Nodes, Trust.
