This paper addresses the aforementioned gap by introducing a new co-operative, clock synchronized technique based on Reference Broadcast System (RBS). To improve network scalability and throughput, we propose the concept of Thread for each & every node of MANET | ISSN:2249-5789 Nidhi Nigam et al , International Journal of Computer Science & Communication Networks,Vol 2(4), 531-535 A comprehension on Wormhole Attack prevention technique using THREADS in MANET Nidhi Nigam1, Vishal Sharma2 1 Department of Computer Science, JIT Borawan/ RGPV, INDIA *e-mail: 2 Department of Computer Science, JIT Borawan/ RGPV, INDIA. *e-mail: vishalsharmakgn@ Abstract The open and dynamic operational environment of Mobile Ad hoc NETwork (MANET) makes it vulnerable to various network attacks. Thus reducing the vulnerability is becoming a top priority. Wireless networks are susceptible to many attacks, including an attack known as the wormhole attack, has become a challenging work. The wormhole attack is very powerful and preventing this attack has proven to be very difficult. This paper addresses the aforementioned gap by introducing a new co-operative, clock synchronized technique based on Reference Broadcast System (RBS). To improve network scalability and throughput, we propose the concept of Thread for each & every node of MANET. So that our proposed scheme has three mechanisms namely, AODV (Ad hoc on demand distance vector protocol) for routing, Principle of RBS for threshold setting and ACK, for reliability of communication, are combined to detect wormhole attacks in ad hoc networks. Keywords – AODV, MANET, RBS, THREAD, Wormhole attacks. 1. Introduction Mobile Ad-hoc network is a set of wireless devices called wireless nodes, which dynamically connect and transfer information. Wireless nodes can be personal computers (desktops/laptops) with wireless LAN cards, Personal Digital Assistants (PDA), or other types of wireless or mobile communication devices. In general, a wireless node can be any computing equipment that employs the air as the transmission medium. As shown, the wireless node may be physically attached to a person, a vehicle, or an airplane, to enable wireless communication among them. In .
