Wormhole Detection using RBS based Ad-hoc on-Demand Multipath Distance Vector as Routing Protocol in MANETs
Neha Chandrima1, Sunil Phulre2, Vineet Richharia3
1Neha Chandrima, PG student, Department of Computer Science and Engineering, Laxmi Narain College of Technology, Bhopal, India.
2Sunil Phulre, Department of Computer Science and Engineering, Laxmi Narain College of Technology, Bhopal, India.
3Dr. Vineet Richharia, HOD, Department of Computer Science and Engineering, Laxmi Narain College of Technology, Bhopal, India.

Manuscript received on March 04, 2014. | Revised Manuscript received on March 05, 2014. | Manuscript published on March 05, 2014. | PP: 42-46 | Volume-4 Issue-1, March 2014. | Retrieval Number: A2077034114/2014©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Mobile Adhoc Networks (MANETs) is a collection of mobile nodes. Due to globalization and revolution in communication technology, growth in the deployment of wireless and mobile communication networks have been noticed. Several challenges and issues are raised by researchers working in the field of Dynamic topology and infrastructure less MANETs. Such facility generates easy installation of Ad hoc networks and provides node stability without loss of connection. In such facility packet dropping is a serious challenge for quality performance of MANETs. Exhaustive literature survey reveals that MANETs generally suffer from security attacks such as black hole attack, wormhole attack and malicious attack due to the packet dropping problems. For the minimization attack and packet dropping researchers have provided the solutions like authentication, reputation based scheme, certification based scheme, passive feedback scheme, ack-based scheme etc. In certification based scheme, a problem of huge overhead due to extra authentication of packet is noticed. Also, the problem of issuing certificate and authentication of certificate at each node are the great challenge to be resolved. To resolve these challenges, Entropy based reference-broadcast synchronization (RBS) scheme is used in which nodes send reference beacons to their neighbors using physical-layer broadcasts. The characteristic entropy changes are used to construct a threshold based detector for fast worms. Proposed scheme is implemented in NS2 simulator and its result shows the effect of normal behavior and improvement of performance after application of this scheme. In this, 50 nodes are used for simulation process and performance is evaluated by packet delivery ratio and normalized load using ad-hoc on-demand multipath distance vector (AOMDV) as routing protocol. This entropy based scheme, successfully minimizes the communication cost by reducing the number of overhead packets, removes the node ambiguity in broadcast synchronization process and minimizes packet dropping also.
Keywords: AOMDV Protocol, Dynamic Topology, Mobile Ad-hoc Networks, Reference-broadcast Synchronization.