دانلود رایگان مقاله لاتین گره سنسور تلفن همراه از سایت الزویر
عنوان فارسی مقاله:
استقرار پویای گره های سنسور تلفن همراه به طور تصادفی در حضور موانع
عنوان انگلیسی مقاله:
Dynamic deployment of randomly deployed mobile sensor nodes in the presence of obstacles
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Nowadays, Wireless Sensor Networks (WSNs) have 3 attracted tremendous research interest due to its various 4 applications from environment monitoring, battlefield 5 surveillance, target tracking, wildfire detection, precision 6 agriculture, smart homes and offices, industrial process 7 monitoring and asset management [1]. A mobile sensor 8 network is a collection of inexpensive, low-powered, 9 small size, and multifunctional mobile sensor nodes. The 10 effectiveness of WSNs mainly depends on the network 11 coverage, lifetime and connectivity provided by the sensor 12 deployment strategies such as deterministic and random 13 deployment. Placing sensor nodes manually in predeter- 14 mined positions on the basis of simple geometric structure 15 (e.g., Hexagon, Square, Rhombus, and Triangular Lattice) 16 is simple and optimal, but this deployment strategy is 17 not suitable in many applications where the application environment is unknown, hostile or inhospitable. For these 18 applications, sensor nodes are required to be deployed 19 randomly by means of dispersing sensors from aircraft or 20 artillery ordinance. 21 An efficient self-deployment algorithm is highly 22 required to ensure optimal network coverage while main- 23 taining connectivity for such randomly deployed sensors. 24 Presently, virtual force-based self-deployment strategies 25 are adopted to overcome the limitations exhibited by 26 random deployment [2–10]. In this work, an efficient 27 distributed self-deployment algorithm has been proposed 28 for randomly deployed homogeneous as well as hetero- 29 geneous mobile sensor nodes. This algorithm is named Q3 30 as Obstacle Avoidance Virtual Force Algorithm (OAVFA). 31 Experimental results carried out with our proposed algo- 32 rithm not only maximizes coverage area but also ensures 33 the connectivity between all sensor nodes in the presence 34 of obstacles. A set of sensor nodes with identical speeds, 35 communication ranges, and sensing ranges has been 36 identified as homogeneous sensor nodes while hetero- 37 geneous sensor nodes differs only in the sensing ranges 38 which are strictly different for various sensors. It has been 39 assumed that the speeds and the communication ranges for heterogeneous sensor remain constant during the 42 process. 43 The proposed algorithm is localized and executed at 44 each sensor node. In this algorithm, each sensor node con- 45 siders all attractive and repulsive virtual forces due to its 46 neighboring sensor nodes, obstacles, and the sensing field 47 boundary to determine its movements to enhance the net- 48 work coverage while maintaining connectivity, prevent the 49 sensor nodes from moving out of sensing field boundary, 50 and avoid the obstacles. Here neighbor sensor nodes of ith sensor s 51 i means the sensor nodes that are within the communication range of si 52 . 53 In the next section, a brief but latest literature sur- 54 veys on sensor node deployment has been outlined. 55 Section 3 provides a basic discussion about the network 56 coverage and sensing model. Our proposed deployment 57 algorithm, Obstacle Avoidance Virtual Force Algorithm 58 (OAVFA) has been described in Section 4. In Section 5, 59 simulation results are presented followed by conclusions 60 in Section 6.
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کلمات کلیدی:
Dynamic deployment of randomly deployed mobile sensor nodes in ... www.academia.edu/.../Dynamic_deployment_of_randomly_deployed_mobile_sensor... In this work, an efficient distributed self-deployment algorithm has been proposed for Nowadays, Wireless Sensor Networks (WSNs) have attracted randomly ... [PDF]On the Deployment of Wireless Sensor Nodes - UC Davis CS www.cs.ucdavis.edu/~liu/paper/senmetrics.pdf by X Liu - Cited by 30 - Related articles controlled instead of randomly performed. First, in a majority of sensor network deployments, sensor nodes are manually deployed instead of randomly thrown ... Coverage by Directional Sensors in Randomly Deployed Wireless ... https://www.ecse.rpi.edu/homepages/abouzeid/preprints/jco2006.pdf by J Ai - Cited by 379 - Related articles Two cases of four directional sensor nodes (black circles) deployed to cover six ... Compared to deterministic deployment, random deployment is easy and less ... [PDF]Coverage by Randomly Deployed Wireless Sensor Networks www.cs.iit.edu/~wan/Journal/tit06.pdf by PJ Wan - 2006 - Cited by 230 - Related articles A wireless sensor network -covers its deployment region if every point in its ... randomly deployed sensors changes with the sensing radius or the number of ... Coverage Enhancement Algorithms for Distributed Mobile Sensors ... https://www.hindawi.com/journals/ijdsn/2016/9169236/ by MS Aliyu - 2016 - Cited by 2 - Related articles Feb 15, 2016 - Sensor nodes in wireless sensor networks are deployed to observe the ... nodes distribution in a certain region caused by random deployment ... 3D Self-Deployment Algorithm in Mobile Wireless Sensor Networks https://www.hindawi.com/journals/ijdsn/aa/721921/abs/ by C Miao - 2015 - Cited by 4 - Related articles In the random deployment scenario, sensor nodes are scattered via airplane or .... repulsion force between node and obstacle, the node is able to be deployed ...
