Ease of deployment has always been seen as a major selling point of wireless sensor networks, yet experience has shown deployment to be difficult. We argue that parts of these difficulties have come from the lack of a generic networking layer and of well-tested, generic transport protocols in traditional sensornet deployments. We believe that the use of low-power IPv6 can help by providing node...

For nodes deployment of heterogeneous sensor network, based on different probability sensing models of heterogeneous nodes, refer to organic small molecule model, ‘class-molecule’ sensing model of heterogeneous nodes is proposed. Combined with DSmT data fusion model, the changes of network coverage ratio after using the new sensing model and data fusion algorithm is studied. According to the re...

The proper deployment of sensors is very important for the successful completion of the sensing tasks due to the inevitable relation with the physical world. This paper presents a novel method for the redeployment of mobile nodes in a hybrid sensor network consisting of a collection of both static nodes and mobile nodes. In such a sensor network, the locomotion ability of mobile nodes helps the...

As it strongly affects localization performance, beacon positioning represents a challenging issue in Large Scale Metrology applications based on wireless sensor networks. This paper presents a software-assisted procedure for an efficient displacement of ultrasonic beacons in a wireless distributed network-based system for medium-large sized object measurements. A regular-grid based strategy an...

A good picture of the actual situation is essential within (networked) Command and Control systems to support the execution of the actions required to achieve mission success. In this paper, the collection of processes that contribute to the construction of this picture is divided into two main categories. The paper firstly describes the set that gathers data from different types of sensors and...

In wireless sensor networks, multiple-coverage, in which each point is covered by more than one sensor, is often required to improve detection quality and achieve high fault tolerance. However, finding optimal patterns that achieve multiple-coverage in a plane remains a long-lasting open problem. In this paper, we first derive the optimal deployment density bound for two-covered deployment patt...

In wireless sensor networks, multiple-coverage, in which each point is covered by more than one sensor, is often required to improve detection quality and achieve high fault tolerance. However, finding optimal patterns that achieve multiplecoverage in a plane remains a long-lasting open problem. In this paper, we first derive the optimal deployment density bound for two-coverage deployment patt...

Deployment of sensors in any irregular terrain with 100% coverage and connectivity is a challenging issue in the field of Wireless Sensor Networks. Traditional deployments often assume homogeneous environments, which ignore the effect of terrain profile as well as the in-network obstacles situated randomly like buildings, trees, roads and so on. Proper deployment of sensors in such irregular re...