Key Pre-Distribution and the Average Distance in Wireless Sensor Networks

Abstract

In this paper, we present an approach for improving key pre-distribution in wireless sensor networks by considering the average distance between the nodes. We compare and demonstrate that by incorporating a master key in the random pair-wise scheme, it is possible to reduce the average distance between the nodes and increase the network coverage. Our approach has the following characteristics: authenticity, scalability, flexibility and resistance to node capture. Experimental results showed that our approach is more scalable than its counterparts in random pair-wise scheme.