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Wireless sensor network is spatially distributed sensors with limited battery life and buffer capacity, in disaster prone sensor network event occurrence ratio is very high, in such situations there are lot of chances of congestion and data loss, reliable data collection in such situation is very challenging task, the proposed tour strategy with ADCN will help to reduce the data loss with tour strategy...
Mobile Sinks have done a good job aiding transfer of Data across a group of static networks in recent research endeavours. A major problem is the design of paradigms for the mobility of the Collector Node (Mobile Sink) for varying applications of WSNs. Most existing methods either generate mobile sink routes in order to merely reduce the energy expenditure in the networks. In this paper, we design...
Sensor localization is a fundamental and crucial problem in wireless sensor network (WSN). A few methods have been proposed to deal with this issue, while schemes with mobile anchors stand out, due to the characters of low cost, flexibility and high precision. One key issue of the anchor based scheme is path planning. Proper path planning can guarantee good coverage of the whole sensing field while...
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...
In WSN, data collected by nodes could be sent to sinks by multi-hop, and the mobility of sinks can improve the coverage, which is one of the most important performances for WSN. The relationship between common nodes and sinks could be illustrated by artificial potential. In this paper an artificial potential based algorithm for sink moving is proposed. The force derived from the artificial potential...
Ubiquitous smart environments, equipped with low-cost and easy-deployable Wireless Sensor Networks (WSNs) and with widespread Mobile Ad-hoc NETworks (MANETs), are opening brand new opportunities in urban monitoring. Urban data collection, i.e., the harvesting of monitoring data sensed by a large number of collaborating sensors in a wide-scale city, is still a challenging task due to typical WSN limitations...
In WSN, sensors near the sink have to relay the data of the nodes away from the sink and as a result they drain their energy very quickly. It result in network partitioning and can significantly limit the network lifetime. This problem is termed as hotspot problem. Recently, formation of hot spot or energy hole near the sink has emerged as a critical issue for data gathering in WSN. In this paper,...
In this paper we explore the mobility of a mobile sink in a wireless sensor network (WSN) to prolong the network lifetime. Since the mechanical movement of mobile sink is driven by petrol and/or electricity, the total travel distance of the mobile sink should be bounded. To minimize the data loss during the transition of the mobile sink from its current location to its next location, its moving distance...
In recent years, with advance in wireless communication technology, sensing technology, micro-electronics technology and embedded system, wireless sensor network (WSN) can be used for various application areas, such as home health care, military and industry. The localization service which provides the location information of mobile user is one of important service provided by WSN, because many applications...
Efficient sensor localizations are techniques for efficiently identifying sensors' positions for different Wireless Sensor Networks (WSNs) applications (e.g., environmental monitoring). Most existing localization techniques are designed for low scale sensor networks. Moreover, existing localization approaches are mostly range based that use some powerful nodes equipped with expensive GPS and/or extra...
The paper suggests a novel algorithm for mobile object tracking using wireless sensor networks (WSNs). The paper assumes a future model of WSNs, where a large number of low to medium range inexpensive and noisy sensors are distributed randomly over an area. The distributed algorithm is based on short range communication between neighboring sensors, and is designed to work with very basic low cost...
The wireless sensor networks are distributed systems of a special type, mainly due to the limitations of the parts. In most of the realizations the nodes are placed in a grid planned in advance, but in many cases these units are scattered more or less randomly through an area. By giving some nodes the ability to move - with a very simple robot, for example - these systems can autonomously order themselves,...
Accomplishing data collection in WSNs by mobile elements (MEs) can reduce the amount of multi-hop communications in the network, which will decrease the energy consumption of sensors and prolong network lifetime. However, this may result in unacceptable data collection latency. The problem can be alleviated by reducing the traveling distance of the MEs with a genetic algorithm (GA) implementation...
The Wireless Sensor Networks (WSN) environments are increasingly becoming intelligent with the rapid boost in the capabilities of sensor nodes. The Sun Small Programmable Object Technology (SPOT) platform offers a high-end sensing device in terms of processing, memory and battery configurations compared to other existing in the community. Within the scope of this paper, a health care use case is derived...
Data transmission from sources to sink is the most common service in wireless sensor networks (WSNs) but sink mobility brings new challenges to it. How to keep the sensors informed of the current state of the mobile sink is the primary issue for the mobile sink management. In this paper, we propose a distributed mobility management scheme that uses a set of access points (APs) to support the data...
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