Observing microclimate changes is one of the most popular applications of wireless sensor networks. However, some target environments are often too dangerous or inaccessible to humans or large robots and there are many challenges for deploying and maintaining wireless sensor networks in those unfriendly environments. This paper presents a mobile sensor network system for solving this problem. T...

wireless sensor networks are composed of hundreds or thousands of small nodes called sensor that work together and are associated with a specific task or tasks to do. each of these nodes includes sensor, processor, communication components, a small memory and a source of energy. it is expected that wireless sensor networks will be used widely in many applications in near future. scalability and...

Recently, there is a growing interest in the design, development and deployment of sensor systems for applications of high-level inference, which leads to an increasing demand on connecting Internet Protocol (IP) network users to wireless sensor networks and accessing the available services and applications. In this paper, we first identify key requirements of designing an efficient and flexibl...

Using mobile sensor networks has increased as well in recent years. It is because of the movement ability of sensor nodes which can be very useful in such networks. Having failure for network nodes occurs usually in wireless sensor networks which can be avoided by having the ability of movement in sensor nodes. It means that when a node fails consequently a hole appears in the coverage area of ...

This paper presents a deployment strategy via self organizing flocking coalitions for mobile sensor network coverage. The concepts of our approach are inspired by the flocking phenomenon which locally controls a group of mobile agents performed as follows: (i) global alignment of their velocity vectors, (ii) convergence of their velocities to a common one, and (iii) collision avoidance. Adding ...

Advances in sensor technology and computer networks have enabled distributed sensor networks (DSNs) to evolve from small clusters of large sensors to large swarms of micro sensors, from fixed sensor nodes to mobile nodes, from wired communications to wireless communications, from static network topology to dynamically changing topology. To design these networks, the factors needed to be conside...

In Mobile Sensor Network, attacker can easily capture a node and compromise that sensor node and extract keying materials from that compromised node and make replicas of them. These replica node attacks are dangerous because they allow the attacker to leverage the compromise of a few nodes to exert control over much of the network .Then attacker use the replica node to inject fake data and disr...