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Vol. 14-2, Special Issue, March 2012, pp.308-320

 

Bullet

 

Secure Packet Transfer in Wireless Sensor Networks

 

Yenumula B. Reddy

Grambling State University

Grambling, LA 71245, USA

E-mail: ybreddy@gram.edu

 

 

Received: 9 December 2011   /Accepted: 20 December 2011   /Published: 12 March 2012

Digital Sensors and Sensor Sysstems

 

Abstract: Secure data transfer with minimum overhead is essential. Currently, the secure data transfer in sensor networks uses cryptography, authentication, and probability based approaches. Recently, collaborative trust-based packet transfer technique was used in wireless sensor networks. Further, Sporas formula helps to update the node’s trust value in a repeated packet transfer. In the proposed research, the trust level of a node is recommended as the average value generated through Sporas formula and repeated trust calculations. If the trust value of a forwarding node is below the threshold (expected value), the node is suspected as malicious and communicates the status to its neighbor nodes. Further, the neighbor nodes calculate their own trust of a suspicious node using their trust value plus trust factor received from their neighbor. The cooperative and collaborative approach helps to eliminate the suspicious node from the communication path. The proposed technique was analyzed, and simulations were provided.

 

Keywords: Packet transfer, Wireless sensor networks, Collaborative approach, Protocols, Trust-based approach, Resource

 

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