Integrated Coverage And Connectivity Configuration In Wireless Sensor Networks Pdf

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Coverage by directional sensors in randomly deployed wireless sensor networks

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: An effective approach for energy conservation in wireless sensor networks is scheduling sleep intervals for extraneous nodes while the remaining nodes stay active to provide continuous service. For the sensor network to operate successfully, the active nodes must maintain both sensing coverage and network connectivity.

Wireless sensor networks typically consist of a great number of tiny low-cost electronic devices with limited sensing and computing capabilities which cooperatively communicate to collect some kind of information from an area of interest. When wireless nodes of such networks are equipped with a low-power camera, visual data can be retrieved, facilitating a new set of novel applications. The nature of video-based wireless sensor networks demands new algorithms and solutions, since traditional wireless sensor networks approaches are not feasible or even efficient for that specialized communication scenario. The coverage problem is a crucial issue of wireless sensor networks, requiring specific solutions when video-based sensors are employed. In this paper, it is surveyed the state of the art of this particular issue, regarding strategies, algorithms and general computational solutions. Open research areas are also discussed, envisaging promising investigation considering coverage in video-based wireless sensor networks. In the last decade, wireless sensor networks WSNs were one of the main research topics in computer communications.

Wireless Sensor Networks - Technology and Protocols. Wireless Sensor Networks WSNs can be defined as a self-configured and infrastructure-less wireless networks to monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants and to cooperatively pass their data through the network to a main location or sink where the data can be observed and analysed. A sink or base station acts like an interface between users and the network. One can retrieve required information from the network by injecting queries and gathering results from the sink. Typically a wireless sensor network contains hundreds of thousands of sensor nodes. The sensor nodes can communicate among themselves using radio signals.

The Coverage Problem in Video-Based Wireless Sensor Networks: A Survey

Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions. A FoI is said to be covered if each point in the FoI is monitored by at least one sensor node. Due to small size, battery power supply, simple architecture, and light weight Operating System of the sensor nodes, maintaining the desired coverage of the FoI consists various issues and challenges in a connected WSN. This paper surveys the existing work done to address various issues and challenges for solving the coverage and connectivity problems in WSNs.

Overview of Wireless Sensor Network

The coverage problem in wireless sensor networks WSNs is to determine the number of active sensor nodes needed to cover the sensing area. The purpose is to extend the lifetime of the WSN by turning off redundant nodes. In this paper, we propose a mathematical model for coverage analysis of WSNs.

Integrated coverage and connectivity configuration for energy conservation in sensor networks

Integrated coverage and connectivity configuration for energy conservation in sensor networks

We propose a Maximum Coverage with Minimum Sensors MCMS problem in which coverage in terms of the number of targets to be covered is maximized whereas the number of sensors to be activated is minimized. These centralized solutions are used as baselines for comparison. Then we provide a distributed greedy algorithm DGA solution. By incorporating a measure of the sensors residual energy into DGA, we further develop a Sensing Neighborhood Cooperative Sleeping SNCS protocol which performs adaptive scheduling on a larger time scale. Finally, we evaluate the properties of the proposed solutions and protocols in terms of providing coverage and maximizing network lifetime through extensive simulations.

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The Coverage Problem in Video-Based Wireless Sensor Networks: A Survey

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Raut and S. DOI : Holzinger , On Topological Data Mining , pp. Fan and S. Bai, S. Kuma, D.

Wireless sensor networks have a wide range of applications. Sensing coverage and communication coverage are two fundamental quality of service. In this paper, we present our work on energy efficient sensing coverage and communication. We design several schemes for sensing coverage subject to different requirements and constraints respectively. We also propose a broadcasting communication protocol with high energy efficiency and low latency for large scale sensor networks based on the Small World network theory.

Nowadays, wireless sensor networks WSNs emerge as an active research area in which challenging topics involve energy consumption, routing algorithms, selection of sensors location according to a given premise, robustness, efficiency, and so forth. Despite the open problems in WSNs, there are already a high number of applications available. In all cases for the design of any application, one of the main objectives is to keep the WSN alive and functional as long as possible. A key factor in this is the way the network is formed. This survey presents most recent formation techniques and mechanisms for the WSNs.

The Coverage Problem in Video-Based Wireless Sensor Networks: A Survey

In conventional sensor networks, the sensors often are based on omni-sensing model.

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Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI:

 Сьюзан, - тихо сказал Стратмор, - с этим сначала будет трудно свыкнуться, но все же послушай меня хоть минутку.  - Он прикусил губу.  - Шифр, над которым работает ТРАНСТЕКСТ, уникален. Ни с чем подобным мы еще не сталкивались.

Wireless Sensor Networks Formation: Approaches and Techniques

В центре панели на экране, ближе к верхнему краю, появились буквы: QUISCUSTODIETIPSOSCUSTODES - Мне это не нравится, - тихо проговорила Сьюзан.  - Не вижу чистоты. Джабба занес палец над клавишей Ввод.

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