For many sensor network applications such as military, homeland security, it is necessary for users (sinks) to access sensor networks while they are moving. However, sink mobility brings new challenges to secure routing in large-scale sensor networks. Mobile sinks have to constantly propagate their current location to all nodes, and these nodes need to exchange messages with each other so that ...

IMPROVED NETWORK CONSISTENCY AND CONNECTIVITY IN MOBILE AND SENSOR SYSTEMS

This paper describes the implementation of a datacentric middleware for wireless sensor networks in the scope of the European project AWARE. The middleware implements a high-level abstraction for integration of wireless sensor networks with mobile robots. This is achieved by providing datacentric access to the information gathered by the wireless sensor network, which includes mobile robotic no...

A wireless sensor network (WSN) is composed of many nodes with limited power supply; most nodes are stationary in the network which could probably involve a few mobile nodes. Various medium access control (MAC) protocols specially aimed at a target locating application for WSNs have been proposed. However, most of these protocols based on the problem of energy-limited does not consider the mobi...

In this paper, We identified several advantages of a heterogeneous architecture for wireless sensor networks (WSNs) .It consists of some resource rich mobile relay nodes and a many number of simple undynamic nodes. The mobile relays have high energy than the undynamic nodes. The mobile relays can dynamically move around the entire network and help relieve sensors that are highly burdened by hea...

In Wireless Sensor Network (WSN) sensor nodes are deployed to sense useful data from environment. Sensors are energy-constrained devices. To prolong the sensor network lifetime, now a days mobile robots (sometimes refer as data sink, data mules, or data collectors) are used for collecting the sensed data from the sensors. In this environment sensor nodes directly transfer their sensed data to t...

Although Mobile Wireless Sensor Networks (MWSNs), which consist of mobile sensor nodes (MSNs), can cover a wide range of observation region by using a small number of sensor nodes, they need to construct a network to collect the sensing data on the base station by moving the MSNs. As an effective method, the network construction method based on Virtual Rails (VRs), which is referred to as VR me...

We describe the deployment of mobile agent in Distributed Sensor Networks (DSNs) to form an improved infrastructure for multisensor data fusion. Compared with the traditional client/server paradigm, mobile agent adopts a new computing model: data stay at the local site, while the execution code is moved to the data sites. Mobile-agent-based DSN (MADSN) saves the network bandwidth and provides a...

This article presents a hybrid scheme for 3-D localization in mobile Wireless Multimedia Sensor Networks. For minimizing the localization error, this paper proposes efficient trajectory estimation patterns and periodic calibration of nodes’ position. Within this hybrid solution, that uses inertial measurements for location determination, the nodes’ position is periodically validated using an an...

In recent years, remote environment monitoring has been significantly improved with wireless sensor networking technology. This paper presents the real time streaming of an indoor environment using a wireless sensor network and a set of self-navigating robots. Mobile robots with mounted sensors will autonomously navigate through an indoor area with unknown obstacles. The robots will be able to ...