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The performances of three different asynchronous radio duty cycling protocols available in the Contiki lightweight operating system have been compared experimentally in view of their adoption in medium sized wireless sensor networks integrated in the Internet of Things. This study unveils some of the subtleties of those protocols, allowing an improved tuning of their parameters, as well as the identification...
in this paper, we have urbanized a fresh sink placement policy in Wireless Sensor Networks (WSNs). We studied the problems in previous sink placement strategies such as RSP, CNP, GOSP, SOSP, CLHM, ISP, and GSP. These previous sink placement strategies are not concerned about dynamicity of the network under consideration. The information about sensor nodes positions is not known beforehand in concerned...
Wireless Sensor Networks (WSNs) consists of many sensors which are densely deployed to get the necessary information. They are constraint in many resources such as energy, memory, computational speed and communications bandwidth etc. Power and energy are the two major issues in WSNs. To use the available power judiciary, uniformly, multiple paths in load balancing fashion and multiple events simultaneously...
This paper presents a two-pronged approach to the perennial power constraint challenge faced by wireless sensor networks. The first is a power efficient algorithm for reducing sensor half-life (PEARSH), an algorithm that increases the lifespan of sensors through the efficient use of sensor battery power. The second is the insertion of a charging circuit connected to a proposed modified mica mote antenna...
The whole idea of this paper is to power sensors buried inside concrete at a certain depth by using a reconfigurable PIFA antenna and to power sensors in free space. The PIFA antenna inside concrete has to absorb power from the incident plane wave on the surface of concrete. Electric field which is incident on concrete would decay according to the parameters of concrete. The purpose of this paper...
With the migration of a wireless sensor network (WSN) over various evolving applications, power estimation and profiling during the design cycle become critical issues and present hurdles in reducing the design time. Furthermore, with a growing size of the network, simulating the behavior of each sensor node is not feasible. It is important to devise an approach that provides a network-wide picture...
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