Mobile sensor networks rely heavily on inter-sensor connectivity for collection of data. Nodes in these networks monitor different regions of an area of interest and collectively present a global overview of some monitored activities or phenomena. A failure of a sensor leads to loss of connectivity and may cause partitioning of the network into disjoint segments. A number of approaches have be...

Abstract Node failures are inevitable in wireless sensor networks (WSNs) because nodes WSNs miniature and equipped with small often irreplaceable batteries. Due to battery drainage, can fail at any instance. Moreover, operate hostile environments environmental factors may also contribute failure. Failure of leads disruption inter-node connectivity might lead network partitioning. communicate ea...

We present here the results of our study to monitor and characterize the available resource capacities on PlanetLab nodes for scheduling and dynamic relocation of migratory tasks. The available resource capacities on PlanetLab nodes can fluctuate significantly in a short time, and a node selected to execute a task may become unsuitable for it within a short time ranging from a few minutes to an...

In a wide-area shared computing environment such as the PlanetLab the available resource capacities at nodes can fluctuate significantly. A node selected based on its available resource capacities for executing a task may become unsuitable for it within a few minutes or hours timeframe. This motivates the need to find another node and relocate the task. In this paper we present a comparative ev...

In this work, we present the stability theory for inhomogeneous fluids subjected to standing acoustic fields. Starting from first principles, criterion is established two of different impedance separated by a plane interface. Through and numerical simulations show that, in presence interfacial tension, relocation high-impedance fluid anti-node node occurs when force overcomes tension force, whi...

Ensuring connectivity in Wireless Sensor Networks (WSN) is a challenging issue, especially in hazardous areas (like battlefield). Many applications of WSN require an important level of connectivity in the network to detect a given event (like detection Intrusion) and forward it to the ”sink” node in order to alert users. For these risky areas the deterministic deployment is not usually guarante...

Changing demands, software evolution, and bug fixes require the possibility to update applications as well as system software of embedded devices. Systems that perform updates of resource-constrained nodes are available, but most approaches require a complete restart of the node after installing or updating software. Restarting the node results in the loss of important system state, such as rou...

Cloud Computing is gaining acceptance and increasing in popularity. Organizations often rely on Cloud resources to effectively replace their in house computer systems. In a Cloud environment an instance is typically accepted to be a virtual system resource established within that Cloud. Multiple instances can be contained a single node. The Cloud itself consists of multiple nodes. The Cloud str...

This paper presents an architecture and protocol in support of seamless mobility for future IP Radio Access Networks (IPRANs). It encompasses a novel approach for seamless handoff and proactive relocation of IP roaming state. The latter establishes a generic substrate for proactive state relocation of different context classes relating to the state of IP connectivity for a mobile node (MN). To ...

although in most of the rural development plans, relocation of informal settlements is oftenconsidered as an efficient solution to increase safety of rural communities against natural and man-made disasters,such as, earthquakes, fire hazards, floods, etc. an evaluation of recent experiences in the relocation projects show thatthe relocated community is often unsatisfied with the new residential...