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IEICE Transactions on Communications
Vol. E92.B (2009) No. 2 P 612-615

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http://doi.org/10.1587/transcom.E92.B.612

Regular Section

In the proposed scheme, every sensor establishes communications keys with its neighbors after deployment. They are selectively employed for intra-cluster communications, and the employed keys are determined by local topology of clusters. Thus, our scheme periodically changes the local topology of clusters so as to renew the intra-cluster communication keys. Besides, new Cluster Heads (CHs) easily share a key with the Base Station (BS) by informing the BS of their member information without sending key materials. Simulation results prove that our approach has strong resiliency against the increase of compromised sensors. It also achieves a performance gain in terms of energy.

Copyright © 2009 The Institute of Electronics, Information and Communication Engineers

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