A Cluster-Based Coverage-Preserved Node Scheduling Scheme in Wireless Sensor Networks

Abstract

Wireless sensor networks consist of a large number of a certain probability (5%). Each sensor node joins the low-power, small-scale sensors with limited processing and clusterhead which requires the minimum communication communication capabilities. Such networks are usually applied to energy. The sensed data is transmitted to the clusterheads to gather data from interested area or specific environment and perform data aggregation, and then transmitted to sink. The deliver to remote users for analyzing or monitoring. Because of randomized rotation of clusterheads at each round can sensing devices are usually powered by batteries, it is a great distribute the energy load among the sensors in the network. challenge to meet the performance of long system lifetime However, this also generates extra overhead and consumes required by different applications under limited power. In the more power. densely deployed sensor networks, the area or data sensed by

A Provably Secure Three-Factor Authentication Protocol for Wireless Sensor Networks

“…Sensors have developed from wired sensors to today's wireless sensors, and wireless sensors are the most common category in daily applications. The wireless sensor network [4,5] is a self-organizing network formed by multiple functional nodes through wireless communication. These functional nodes include a large number of sensor nodes and gateway nodes.…”