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International Journal of Distributed Sensor Networks
Volume 2012 (2012), Article ID 234029, 7 pages
http://dx.doi.org/10.1155/2012/234029
Research Article

Traffic Rerouting Strategy against Jamming Attacks in WSNs for Microgrid

1Department of Information Media, University of Suwon, San 2-2 Wau-ri, Bongdam-eup, Hwaseong-si, Gyeonggi-do 445-743, Republic of Korea
2Department of Electrical Engineering, University of Incheon, 12-1, Songdo-dong, Yeonsu-gu, Incheon 406-840, Republic of Korea
3Department of Computer and Mathematical Sciences, Graduate School of Information Science, Tohoku University, Sendai 980-8577, Japan

Received 4 November 2011; Accepted 25 February 2012

Academic Editor: Carlos Ramos

Copyright © 2012 Yujin Lim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In a microgrid as an energy infrastructure, the vulnerability against jamming attacks is fatal. Thus, the ability to deal with jamming attacks and maintain an acceptable level of service degradation in presence of the attacks is needed. To solve the problem, we propose a traffic rerouting scheme in wireless communication infrastructure for islanded microgrid. We determine disjoint multiple paths as candidates of a detour path and then select the detour path among the candidates in order to reduce the effect of jamming attack and distribute traffic flows on different detour paths. Through performance comparison, we show that our scheme outperforms a conventional scheme in terms of packet delivery ratio and end-to-end delay.