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Air and Water are the most important resources of the planet that we use daily for sustaining life. Air quality affects all living creatures, from trees and plants to animals and people. Air quality, especially in the trend of more industrialized cities and with a rapid growing population of cars, is degrading. Continuous monitoring allows the national administrations to take measures in order to...
The role of energy in wireless sensor networks (WSN) becomes very important when network is unattended and it is not possible to recharge sensor node's battery in the sensing region many times. Due to this limited battery energy of sensor nodes it becomes a challenge for WSN to maintain proper functioning for a long time. So for the enhancement in network lifetime of the WSN, here we propose a modified...
The development of Unmanned Aerial Vehicles (UAV) and wireless sensor network (WSN) applications depends on the availability of resources in UAVs and sensor nodes. In traditional applications, UAVs obtain the required data from specific sensors. However, this tightly coupled architecture restricts the usage of the infrastructure for specific applications. This paper proposes a softwarization architecture...
The Internet-of-Things (IoT) envisions a world where billions of everyday objects and mobile devices communicate using a large number of interconnected wired and wireless networks. Maximizing the utilization of this paradigm requires fine-grained QoS support for differentiated application requirements, context-aware semantic information retrieval, and quick and easy deployment of resources, among...
PyoT is a web-based framework designed to simplify the development of complex applications for the IoT. Adopting the macroprogramming paradigm, it lets the programmers focus on the global application's goal, hiding low-level communication details. Developers can easily define, test, and share applications using IPython Notebooks or through a rich Web interface. The framework is capable of efficiently...
The problem of integrating the ad hoc networks and especially the Wireless Sensor Networks (WSN) with the Internet has attracted significant research and implementation efforts so far. Admittedly, not all of them have been widely adopted and established as prevalent standards or solutions in this technical area. In this paper we survey the proposed interconnection models and the relevant architectures...
Recent advances in technology realize small devices which have been enabled wireless communication among sensors. Wireless sensor network is used for monitoring such as environment, earthquake and disaster. In sensor network, real-time end-to-end data communication is very important. If we use traditional First Come First Serve(FCFS) scheduler, which needs a lot of time to send if a packet generated...
Disseminating data generated by sensors to sinks at different locations is one of essential functions in wireless sensor networks (WSNs). Recent research focuses much on how a source node forwards sensing data directly to the sink. In this paper, we propose a novel dissemination scheme that obtains five-layer data aggregation by introducing aggregator layers between sensors and sinks. The five aggregation...
We demonstrate low-power, integrated laser-based trace-gas chemical sensor systems which directly interface to the Telos wireless sensor networking (WSN) modules. We will demonstrate a prototype sensor which measures atmospheric oxygen concentration configured as a battery powered, handheld unit with power consumption <0.3 W, sensitivity of 0.07%, high specificity, and the robustness required for...
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