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Some problems of directional sensor networks

Huadong Ma, Yonghe Liu
2007 International Journal of Sensor Networks (IJSNet)  
Wireless sensor networks are often based on omni-sensing and communication models. In contrast, in this paper, we investigate sensor networks with directional sensing and communication capability.  ...  Moreover, for sensors with directional communication model, we propose methods for checking and repairing the connectivity of the network. We design efficient protocols to implement our idea.  ...  We first derive the conditions to satisfy certain coverage requirement for randomly deployed directional sensor networks.  ... 
doi:10.1504/ijsnet.2007.012981 fatcat:k5xzifttxne7rbdivt5oam2bsm

The Issues of Coverage in Directional Sensor Network

Shreya Mishra, Ramakant Sharma, Siddharth Saxena
2015 International Journal of Computer Applications  
As sensors are randomly deployed, their sensing direction may overlap with one another and hence coverage optimization has become the most popular area for research over the years.  ...  The impact of various parameters of directional sensor networks as: sensor's location, its working direction, number of orientations, FoVs on the performance of the deployed sensor network is analyzed.  ...  Proposed distributed greedy algorithm MDAC (maximum directional area coverage) also termed as DGreedy to maximize the area by scheduling working direction of the sensor.  ... 
doi:10.5120/20188-2412 fatcat:yunedgzeobhhhm4evairtwi5tm

Maximizing Network Lifetime of Directional Sensor Networks Considering Coverage Reliability

Joon-Min Gil, Jong Hyuk Park, Young-Sik Jeong
2013 International Journal of Distributed Sensor Networks  
Maximizing network lifetime is a challenge in developing energy-efficient directional sensor networks, while covering all of the targets in a given area.  ...  In this paper, we address the directional cover-sets with coverage reliability (DCCR) problem of organizing directional sensors into a group of nondisjoint subsets to extend network lifetime maximally  ...  We simulated a stationary network with sensors and targets randomly deployed in an area of 500 m × 500 m.  ... 
doi:10.1155/2013/583753 fatcat:unqznykdmff7zdvzm4iqfipx6e

Lifetime maximization considering target coverage and connectivity in directional image/video sensor networks

Yong-hwan Kim, Youn-Hee Han, Young-Sik Jeong, Doo-Soon Park
2011 Journal of Supercomputing  
In such directional sensor networks, the power saving issue is a challenging problem.  ...  In this paper, we address the Directional Cover and Transmission (DCT) problem of organizing the directional sensors into a group of non-disjoint subsets to extend the network lifetime.  ...  We consider the sensor scheduling problem to maximize network lifetime while maintaining both the target coverage and network connectivity in directional sensor networks.  ... 
doi:10.1007/s11227-011-0646-9 fatcat:hylbhv3qufe6zghp5qbrgfmeh4

Critical Location Spatial-Temporal Coverage Optimization in Visual Sensor Network

Yonghua Xiong, Jing Li, Manjie Lu
2019 Sensors  
In this paper, we study how to schedule sensor nodes to maximize the spatial-temporal coverage of the critical locations under the constraint of network lifetime.  ...  Coverage and network lifetime are two fundamental research issues in visual sensor networks.  ...  Input: Sensor node set S, critical location set P, round N, duration time l 2: Output: The value of spatial-temporal coverage 3: Deploy S and P randomly 4: Go into Phase-I: Adjust sensor nodes' directions  ... 
doi:10.3390/s19194106 fatcat:ehvcpcczrzce7ktscalvxyuazu

Maximizing Lifetime of Barrier Coverage Wireless Sensor Network with Tell Neighbor Algorithm

Vinay Chowdary, Mukul Kumar Gupta, Sushabhan Choudhury
2019 International journal of mathematical, engineering and management sciences  
The maximizing lifetime of Barrier coverage in wireless sensor network has attracted researchers in recent past.  ...  In barrier coverage applications it is essential to prolong the lifetime of sensor networks which guarantees extended operating lifetime of the overall network.  ...  Kim (2011) has given a scheduling approach that utilizes the approach of sleep/wakeup to increase the lifetime of sensors that are randomly deployed in the network.  ... 
doi:10.33889/ijmems.2019.4.3-060 fatcat:bwnnzwjisnfaffhmhfnu3qvlye

A Scheduling Algorithm for Connected Target Coverage in Rotatable Directional Sensor Networks

Youn-Hee HAN, Chan-Myung KIM, Joon-Min GIL
2012 IEICE transactions on communications  
His research interests include coverage and scheduling issues in wireless sensor network and bio-inspired algorithms. Information Communications Engineering.  ...  The wireless sensor networks have emerged as a promising tool for monitoring the physical world. Recently directional sensor networks (DSNs) consisting of directional sensors have gained attention.  ...  In this paper, we study a problem of target coverage scheduling in DSNs, in which directional sensors have limited battery capacity and are randomly and densely deployed to cover all targets.  ... 
doi:10.1587/transcom.e95.b.1317 fatcat:fzdjrldryjagvpvy4tjolkmaea

Heuristic Search Algorithm (Hsa) For Enhancing The Lifetime Of Wireless Sensor Networks

Tripatjot S. Panag, J. S. Dhillon
2015 Zenodo  
Once the sensors are randomly deployed, the task at hand is to find the largest number of disjoint sets of sensors such that every sensor set provides complete coverage of the target area.  ...  The lifetime of a wireless sensor network can be effectively increased by using scheduling operations.  ...  In this paper a directed random search algorithm has been presented to find the maximum number of disjoint complete cover sets of sensors for point coverage in order to maximize the lifetime of a WSN.  ... 
doi:10.5281/zenodo.1107892 fatcat:5s6tbfkjtnbapghkpjwizxgiby

Target Q-Coverage Problem with Bounded Service Delay in Directional Sensor Networks

Deying Li, Hui Liu, Xianling Lu, Wenping Chen, Hongwei Du
2012 International Journal of Distributed Sensor Networks  
In this paper, we address the target Q-coverage (TQC) problem to prolong the network lifetime with bounded service delay constraint in directional sensor networks.  ...  With practicable manufacture and cost reduction, directional sensor has been widely used in wireless sensor networks to save energy.  ...  In this paper, we address the target Q-coverage problem with maximizing the network lifetime in directional sensor network and design a target coverage schedule to satisfy a bounded service delay.  ... 
doi:10.1155/2012/386093 fatcat:zrpaa7l5snfndogbng2eqimqr4

An optimal algorithm for coverage hole healing in hybrid sensor networks

Dung T. Nguyen, Nam P. Nguyen, My T. Thai, Abdelsalam Helal
2011 2011 7th International Wireless Communications and Mobile Computing Conference  
In this paper, we focus on how to schedule mobile sensors in order to cope with coverage hole issues in a hybrid sensor network containing both static and mobile sensors.  ...  However, in dangerous or hostile environments such as battle fields or active volcano areas, we can neither deterministically or purposely deploy sensors as desired, thus the emergence of coverage holes  ...  A set of mobile sensors are randomly located in the field of target. We generate 100 networks, each of them contains 1000 coverage holes randomly deployed in the targeting area.  ... 
doi:10.1109/iwcmc.2011.5982583 dblp:conf/iwcmc/NguyenNTH11 fatcat:vjov6san7ndqjkcv2nf4i7fffq

Game-Theoretic Based Distributed Scheduling Algorithms for Minimum Coverage Breach in Directional Sensor Networks

Jin Li, Kun Yue, Weiyi Liu, Qing Liu
2014 International Journal of Distributed Sensor Networks  
A directional sensor network, where a lot of sensors are intensively and randomly deployed, is able to enhance coverage performances, since working directions can be partitioned into different K covers  ...  In this paper, we consider the problem of direction set K-Cover for minimum coverage breach in directional sensor networks.  ...  [6] defined the multiple directional cover set problem of organizing the directions of sensors into a group of nondisjoint cover sets to extend the network lifetime, in order to maximize the network  ... 
doi:10.1155/2014/341309 fatcat:g7n4lvgwzbhczgpesr55f6cgye

Coverage in Wireless Sensor Networks [chapter]

Jie Wu, Mihaela Cardei
2004 Handbook of Sensor Networks  
In this article, we survey recent contributions addressing coverage problems in the context of static wireless sensor networks.  ...  Sensor Coverage Problem An important problem addressed in literature is the sensor coverage problem.  ...  Acknowledgement The work of Jie Wu was supported in part by NSF grants CCR 0329741, CCR 9900646, ANI 0073736, and EIA 0130806.  ... 
doi:10.1201/9780203489635.sec5 fatcat:lzs5voefjjef3bnu3myuf2jiky

A VORONOI-BASED DEPTH-ADJUSTMENT SCHEME FOR UNDERWATER WIRELESS SENSOR NETWORKS

Jiagao Wu, Yinan Wang, Linfeng Liu
2013 International Journal on Smart Sensing and Intelligent Systems  
Underwater wireless sensor network (UWSN) is a special kind of wireless sensor network which is composed of a large quantity number of wireless sensor nodes deployed in the water.  ...  In this paper, we propose a depth-adjustment scheme to maximize the coverage in 3D space.  ...  Although sensor nodes are randomly deploy in the surface of the water and can not move in horizontal direction, with the help of depth adjustment technique, sensors can be lower to any depth so that the  ... 
doi:10.21307/ijssis-2017-538 fatcat:yeclk6d5mvezhnlsktq5x65jtu

A Target Coverage Scheduling Scheme Based on Genetic Algorithms in Directional Sensor Networks

Joon-Min Gil, Youn-Hee Han
2011 Sensors  
In this paper, we discuss the problem of target coverage scheduling in DSNs whose directional sensors have limited battery capacity and are randomly deployed to cover all targets.  ...  In this paper, we focus on target coverage [3, 4] in a randomly deployed sensor network where the density of sensor nodes is sufficiently high to monitor all targets.  ...  In contrast to conventional sensor networks, DSNs are composed of a number of directional sensors with limited sensing ranges and directions, and thus target scheduling to maximize the network lifetime  ... 
doi:10.3390/s110201888 pmid:22319387 pmcid:PMC3274050 fatcat:jzzckjwn6faltc5jaeurlcwzcq

Efficient Sink Scheduling for Data Travelling in WSNs with Delay Constraint
English

Sithara Mathews, T.R. Srinivasan
2014 International Journal of Computer Trends and Technology  
The objective of system is to use sink mobility to prolong the network lifetime in wireless sensor networks where the information delay caused by moving the sink should be bounded.  ...  Proposed system shows the benefits of involving a mobile sink and the impact of network parameters (e.g., the number of sensors, the delay bound, etc.) on the network lifetime.  ...  Sensor deployment is formulated as a search problem to minimize the number of deployed sensors as well as to maximize the coverage of the sensors similar to the mathematical approach.  ... 
doi:10.14445/22312803/ijctt-v11p113 fatcat:oenaojjxszatjjxaxbfcr564z4
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