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Secure Cluster Formation Employing Two-hop Conformity Verification in Wireless Sensor Networks |
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PP: 175-184 |
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Author(s) |
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Gicheol Wang,
Sangwon Bang,
Gihwan Cho,
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Abstract |
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| Cluster structure is frequently adopted for wireless sensor networks since it enables energy-efficient communication between
nodes and extends the network longevity. To build up a cluster structure in a network, a cluster formation protocol should be invoked.
During a cluster formation protocol, if compromised nodes survive the screening process, they can make some members have different
cluster membership to separate a cluster and consequently lower the average cluster quality. To cope with this problem, this paper
presents a novel and secure cluster formation scheme. First, our scheme enhances the average cluster quality by attempting to create
two-hop clusters where all members are at most two hops away from each other. Second, our scheme avoids the separation of the clusters
through the help and verification of two hop distant nodes. Last, our scheme saves energy consumption amount of nodes by primarily
using broadcast transmissions. Experiments show that our scheme greatly reduces the number of generated clusters as compared with
a rival scheme and expels more compromised nodes and consumes less amount of energy than the rival scheme. |
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