Anti-attack and Channel Aware Target Localization in Wireless Sensor Networks Deployed in Hostile Environments
Zhenxing Luo
Zhenxing Luo, Department of Electrical and Computer Engineering, The University of Alabama at Birmingham, Birmingham, AL, USA.
Manuscript received on July 17, 2012. | Revised Manuscript received on August 25, 2012. | Manuscript published on August 30, 2012. | PP:62-66 | Volume-1 Issue-6, August 2012.  | Retrieval Number: F0606071612/2012©BEIESP

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Abstract: This paper discusses the attack and communication channel problems of the energy-based target localization method in wireless sensor network. An anti-attack and channel aware (AACA) target localization method is presented to address the attack problem and the problem of communication channel errors at the same time. Particularly, the AACA method proposed in this paper focuses on the Rayleigh fading channel with coherent receiver. Moreover, the AACA method was compared with the weighted average (WA) method under attack and communication channnel errors. Results showed that the root mean square (RMS) errors presented by the AACA method were close to the CRLB. Moreover, the WA method, although not able to provide as good performance as the AACA method, could give results in much shorter time. 
Keywords: Cramer-Rao lower bound, Target localization, Wireless sensor networks.