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In wireless sensor networks (WSNs), energy is dissipated mainly when sensors are communicating with sinks. As a result, multiple sinks are deployed in the network in order to increase its coverage area and shorten the communication distance between these two entities. This raises the issue of how best to bind sensors to sinks without overloading any sink. In this paper, we solve the sensor-to-sink...
Global warming is big issue of this time. It is caused by producing emissions, mainly carbon dioxide. Many organizations tries to establish restrictions to limit CO2 emissions. Our aim is to monitor underground parking lots and detect level of carbon dioxide using wireless sensor network. Gained results are drawn in the map of pollution of monitored area.
The main source of power supply for Wireless Sensor Networks are batteries, which are limited in life-cycle, thus limiting the sensors lifetime. Due this fact, the energy efficiency network is becoming the main concern to be addressed by researchers. This work aims to implement two theoretical energy-saving algorithms for WSN, DTNBOR and DTRNG. These algorithms choose their transmissions powers dynamically...
Energy consumption represents a key element in the Wireless Sensor Networks (WSNs) design. Several factors can cause energy over consumption such as mobility, node position (relay or gateway), retransmissions... The network topology can also be a major cause of energy waste: a transmission in 1-hop requires a high energy, a transmission in K-hops requires a lower energy, even though, it can damage...
A novel idea presented in this paper is to deploy the Open Flow technology in wireless sensor networks that can lead to a significant achievement in Internet of things and cloud computing arena through network virtualization. Two new abstract layers namely Common platform layer and virtualization layer can be added at the top and bottom of a preset Infrastructure as a Service architecture. Our proposed...
Wireless sensor networks have the potential to become the future pervasive sensing technology. Large number of sensors and the major application scenario require manual location that may cause sensor position variation problem However, we need mechanisms to localize sensors randomly and control the correspondent movement. In such item, we propose in this paper a WSN policy using the peddling information...
The Wireless Sensor Networks (WSNs) design related questions give rise to new complex and difficult theoretical problems and challenges in operations research and optimization areas. As WSNs become increasingly pervasive, a good understanding of these problems in terms of theoretical complexity is of great help in designing appropriate algorithms. In this paper, we examine some of the most fundamental...
The paper suggests an operating system-based framework that provides a comprehensive approach for energy management in wireless sensor networks (WSNs). Differently from what proposed in the related literature, the suggested mechanisms decouple the logic behind energy management policies from their implementation. This novel approach allows WSN-users for easily developing their own management policy...
Several solutions were proposed by the literature to detect wormhole attacks in wireless sensor networks (WSN) but, to the best of our knowledge, none of them has taken interest to the problem of digital investigation. We propose in this paper a solution for digital investigation of wormhole attacks in WSN. An observed WSN is defined to support generation and secure forwarding of evidences regarding...
This paper studies the sensed data gathering system based on a wireless sensor network (WSN). We develop a novel inter-networking pattern of sensed data gathering system and the corresponding sensed data aggregating algorithm. After presenting the system architecture of the WSN sensed data gathering system and the applied networking protocols, we elaborate our WSN sensed data aggregating algorithm,...
The coverage problem is always important and difficult in WSN. This paper firstly analyzes the classical algorithm of the coverage-preserving nodes scheduling scheme (CPNSS) of the WSN. Then we propose a new improvement algorithm (NIA) which focuses on the problem of its low-efficiency and energy-imbalance. We divide all the nodes into several independent sets, and each set can cover all the area...
The deployment of wireless sensor networks (WSNs) is expected to have a significant impact on the efficiency of many civil and military applications, such as disaster management, environment monitoring, combat field surveillance and space exploration. In unattended WSN setups, most of the energy aware routing approaches pursue multi-hop paths in order to minimize the total transmission power. However,...
Sensor networks specifications are highly dependent on the application defined for the network. Some networks need full coverage while others can fulfill their goal with a partial coverage. Therefore it is important to have an algorithm which can satisfy full range of requirements as a universal solution. Thus a new pre-specified coverage method has been introduced which can be applied in very vast...
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