An Improved Distance Vector by Naming and Protecting from Wormholes in Wireless Sensor Networks
Leelavathy S. R

Leelavathy S. R, Assistant Professor, Department of CSE, Dr. T. Thimmaiah Institute of Technology, Visvesvaraya Technological University, India.
Manuscript received on 10 December 2014 | Revised Manuscript received on 20 December 2014 | Manuscript Published on 30 December 2014 | PP: 51-55 | Volume-4 Issue-7, December 2014 | Retrieval Number: G1910124714/14©BEIESP
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Abstract: Node localization becomes an important issue in the wireless sensor network as its broad applications in environment monitoring, emergency rescue and battlefield surveillance, etc. fundamentally the DV-Hop localization mechanism function well with the support of beacon nodes that have the potential of self-positioning. However, if the network is invaded by a wormhole attack, the attacker can tunnel the packets via the wormhole link to cause severe impacts on the DV-Hop localization process. The distance- vector propagation phase during the localization even aggravates the positioning result, compared to the localization schemes without wormhole attacks. In this paper, the impacts of wormhole attack on DV- Hop localization scheme and advanced DV -Hop localization. Based on this a label-based secure localization scheme is proposed to defend against the wormhole attack
Keywords: Localization, Sensors, Beacons, Naming, WSN, Distance Vector, Improved DV Hop.

Scope of the Article: Wireless Multimedia Systems