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This article presents a simple method of acquiring data in order to experiment on the energy consumption of wireless sensor networks. This data allows further work in designing an affordable WSN testbed. Development platforms used in this article was the Raspberry Pi 3 connected to an ADC and the myRIO from National Instruments utilizing a FPGA processor.
Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves can range from small passive micro-sensors to larger scale, controllable weather-sensing platforms. In order to simulate Wireless Sensor Networks (WSNs), we implemented a simulation...
In order to improve the energy cost of data transmission in wireless sensor network (WSN), we propose a new method to construct wireless sensor network topology based on small world concept. We add some certain high energy nodes (H-sensor) in the network and create a few of long-range links between the sink and H-sensors, called shortcuts which act as the long links required in small world network...
Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves can range from small passive micro-sensors to larger scale, controllable weather-sensing platforms. In order to simulate Wireless Sensor Networks (WSNs), we implemented a simulation...
Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves can range from small passive micro-sensors to larger scale, controllable weather-sensing platforms. To reduce the consumed energy of a large scale sensor network, we consider a mobile...
In this paper, we consider the behavior of a wireless sensor network for TwoRayGround and Shadowing radio models for the case of mobile event. By means of simulations, we analyse the performance of AODV protocol. In the previous work, we considered that the event node is stationary in the observation field. In this work, we want to investigate how the sensor network performs in the case when the event...
OPNET has been widely used as a network simulator, but not much emphasis has been given on the performance of this simulator for ZigBee wireless sensor networks (WSN). Simulation of WSNs is a challenging task due to the nature of hardware design, energy limitations, and deployment of a vast number of nodes. An inclusive study and analysis of the QoS performance evaluation of the ZigBee protocol within...
Topology plays a vital role to increase the lifetime and scalability of wireless sensor network (WSN). Topology of the WSN can be controlled by the dynamic clustering technique. In this paper, we have proposed a dynamic clustering approach that determines the optimum number of hierarchical level based on the traffic pattern to improve the network lifetime. During the period of data transmission, the...
Flexible, distributed monitoring systems are essential to support decisions in a variety of contexts such as, for instance, vehicular traffic control, emergency evacuation plans, energy optimization services, pollutant detection or intelligent agriculture applications. In this paper, we present WSNAP, a platform for wireless sensor network (WSN) deployment. WSNAP relies on standard technologies, which...
We consider surveillance applications through wireless sensor networks (WSNs) with fully accessible areas to be monitored. In this context, the WSN topology can be planned a priori to maximize application efficiency. We propose an optimization framework for selecting the positions of wireless sensors to detect mobile targets traversing a given area. By leveraging the concept of exposure as a measure...
Estimation at a fusion center in a wireless sensor network is examined. The problem at hand is to perform power allocation subject to a total network power constraint while minimizing the mean-squared error of the estimate. In particular, amplify-and-forward and estimate-and-forward protocols are considered in linear and tree topologies. Analytical solutions for these cases appear to be intractable,...
Resource constrained platforms, dynamic nature, and complex applications set challenges to the development of wireless sensor networks (WSN). Sophisticated tasking and networking control is required in WSNs to reach lifetimes in order of years. This paper presents a WSN node middleware, which controls task allocation and WSN topology according to the current requirements of the application. The middleware...
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