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An effective sensor node placement in a Wireless Sensor Network (WSN) is one of the ways to provide a WSN with maximum coverage, maximum connectivity, minimum deployment cost and minimum energy consumption. Territorial Predator Scent Marking Algorithm (TPSMA) has been recently proposed by the authors. This paper presents an intruder detection system based on TPSMA. The performance of the TPSMA intruder...
Motivated by the needs of WSNs with strip structure that is ubiquitous in real world deployment, such as pipeline monitoring, water quality monitoring and GreatWall monitoring, this paper presents a new geographic opportunistic routing to cope with the routing problem that is the transmission success rate will decrease in the complicated strip networks. In this paper, depending on investigating the...
Wireless sensors networks plays an important role for accurate monitoring for various applications such as military surveillance where exact monitoring is required. Critical issue with wireless sensor network is sensor node energy as energy utilization of sensor nodes increases the communication cost. This paper used effective N-DRINA routing algorithm which improves the data fusion and aggregation...
In a wireless sensor network (WSN), sensor nodes are powered by batteries that can operate for only a short period of time, which results in short network lifetime. The short lifetime disables the application of WSNs for long term tasks such as structural health monitoring for bridges and tunnels, border surveillance, road condition monitoring, etc. In this paper the overall network lifetime is increased...
Wireless Sensor Network (WSN) is a network of portable and lightweight sensors used to monitor a specific field and report the data they detect wirelessly to a sink node responsible for the analysis and decision making. WSNs have limited power as well as resources. More advanced sensors known as "multimodal sensors" can report more than one feature, which requires even more efficient utilization...
Vibration is the main reason for earthen sites to deform and collapse. It is necessary to get vibration data for providing basis to further conserving earthen sites. Traditional monitoring methods are not suitable for the earthen sites because it is destructive and unsustainable. We use the technique of wireless sensor network (WSN) to get the vibration data, and delve into how to transmit large amounts...
ZACA-EEC (Zigbee Ant Colony Algorithm Energy Efficient Cluster) routing protocol is proposed to replace AODV in Zigbee with the aim of increasing reliability for mine equipment monitoring in this paper, which can prolong the lifetime of network remarkably. Taking hydraulic support as an example, the distribution of monitoring nodes can be simplified as chain hierarchy topology, then Free-space model...
This paper describes a prototype of a wireless sensor network developed for tracking pilgrims in the Holy areas during Hajj (Pilgrimage). A delay tolerant network principle is used. Energy efficiency, robustness, and reliability are the key factors for the developed system. Every pilgrim will be given a mobile sensor unit that includes a GPS unit, a Microcontroller, antennas and a battery. A network...
In this paper, we propose one 3-D Localization Algorithm of Time-Changed Wireless Sensor Networks Based on Initial Topographical Information. The basic idea is first to apply the optimization method, anchors selection strategy and limited region traversal method to locate the unknown sensors by introducing initial topographical information, then relocate the moving sensors based on the communication...
Wireless Sensor Networks (WSN) has become an attractive field for research due to the increasing number of applications. This paper uses a WSN to monitor Electromagnetic Pollution and report any violations in power levels. An event-by-event simulator is developed to calculate network lifetime and study important factors affecting it. One of these factors is determining the energy threshold of the...
This paper briefly describes the characteristics of wireless sensor networks (WSN) and introduces it into the power grid. WSN can dynamically monitor malfunctions on power grid cables. This is the significance of the article. We make some improvements on the DV_Hop algorithm in WSN and propose a feasible method of failure localization which can be applied on power grid cables.
Ultra-wideband (UWB) technology has the characteristics which other wireless communication technology can not match to. It combines with wireless sensor network (WSN) technology, using in the environment of coal mine underground, to achieve safety monitoring by WSN node location. Using appropriate location algorithm can not only improve the location accuracy of the calculation can also reduce system...
Due to energy constraints of sensor devices, object localization and tracking is usually a challenging application for Wireless Sensor Networks (WSNs). Energy conservation should be kept in mind in all designing steps. The proposed method in this paper has considered both energy consumption and quality of tracking. Our approach involves only sensors in which are localized relating to the target movement;...
Wireless Sensor Networks have been used in many of critical applications such as battlefield surveillance and monitoring of critical infrastructures. Such applications may require heterogeneous sensor nodes with different sensed phenomena and different hardware characteristics. This heterogeneity imposes an added constraint to the mining of useful information from the network. At the same time, a...
For the purpose of enhance the security of poor working in coal mine, it's important to study on the problem of location and tracking for keeping mining personnel and down hole equipments safe. We put forward wireless sensor network underground location algorithm which is based on the superposition of RSSI and DV-Hop. This algorithm makes up for the shortage of RSSI algorithm and DV-Hop algorithm...
Object tracking is among the imperative applications of WSNs. Tracking can be classified as single-target tracking, multiple-target tracking or continuous object tracking according to the type of targets. Contemporary researchers have mainly focused on single-target or multiple-target tracking, so that there has been little research on continuous object tracking. As a consequence, based on the protocols...
Wireless sensor networks (WSNs) have many applications in industry and environmental monitoring where sensor nodes are deployed at fixed places for monitoring some phenomena. One of the commonly used deterministic deployment topologies is a rectangular grid. In a WSN reliability measure that considers the aggregate flow of sensor data into a sink node is formulated, and it has been shown that computing...
Wireless sensor networks (WSN) can report large volumes of slowly varying routine data, while important or significant events can be relatively rare. An important challenge is then to offer the significant or unusual data an adequate routing policy that will allow it to rapidly reach the sink nodes, despite the large volume of routine packets in the network. In this paper we introduce randomized re-routing...
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