scholarly journals Maximizing strong barriers in lifetime-heterogeneous directional sensor network

2016 ◽  
Author(s):  
Ruisong Han ◽  
Li Zhang ◽  
Wei Yang
Keyword(s):  
Sensor Network ◽  
Directional Sensor Network ◽  
Directional Sensor

scholarly journals Critical density for coverage and connectivity in non-orientation directional sensor network

2020 ◽  
Vol 16 (6) ◽  
pp. 155014772092575
Author(s):  
Lin Kang ◽  
Zengshou Dong ◽  
Yanjie Qi
Keyword(s):  
Sensor Network ◽  
Critical Density ◽  
Region Of Interest ◽  
Field Of View ◽  
Wireless Sensor ◽  
Connected Component ◽  
Simulation Results ◽  
Coverage And Connectivity ◽  
Directional Sensor Network ◽  
Directional Sensor

Both coverage and connectivity are important problems in wireless sensor networks. As more and more non-orientation sensors are continuously added into the region of interest, the size of covered component and connected component increases; at some point, the network can achieve an entire coverage and full connectivity after which the network percolates. In this article, we analyze the critical density in non-orientation directional sensor network in which the orientations of the sensors are random and the sensors are deployed according to the Poisson point process. We propose an approach to compute the critical density in such a network. A collaborating path is proposed with the sum of field-of-view angles of two collaborating sensors being π. Then a correlated model of non-orientation directional sensing sectors for percolation is proposed to solve the coverage and connectivity problems together. The numerical simulations confirm that percolation occurs on the estimated critical densities. It is worth mentioning that the theoretical analysis and simulation results give insights into the design of directional sensor network in practice.

scholarly journals Directional-Sensor Network Deployment Planning for Mobile-Target Search

Robotics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 82
Author(s):  
Shiraz Wasim ◽  
Zendai Kashino ◽  
Goldie Nejat ◽  
Beno Benhabib
Keyword(s):  
Sensor Network ◽  
Search Algorithm ◽  
Search Problem ◽  
Target Search ◽  
Physical Constraints ◽  
Sensing Model ◽  
Mobile Target ◽  
Deployment Planning ◽  
Directional Sensor Network ◽  
Directional Sensor

In this paper, a novel time-phased directional-sensor network deployment strategy is presented for the mobile-target search problem, e.g., wilderness search and rescue (WiSAR). The proposed strategy uses probabilistic target-motion models combined with a variation of a standard direct search algorithm to plan the optimal locations of directional-sensors which maximize the likelihood of target detection. A linear sensing model is employed as a simplification for directional-sensor network deployment planning, while considering physical constraints, such as on-time sensor deliverability. Extensive statistical simulations validated our method. One such illustrative experiment is included herein to demonstrate the method’s operation. A comparative study was also carried out, whose summary is included in this paper, to highlight the tangible improvement of our approach versus three traditional deployment strategies: a uniform, a random, and a ring-of-fire type deployment, respectively.

Deploy Efficiency Driven k-Barrier Construction Scheme Based on Target Circle in Directional Sensor Network

2020 ◽  
Vol 35 (3) ◽  
pp. 647-664
Author(s):  
Xing-Gang Fan ◽  
Zhi-Cong Che ◽  
Feng-Dan Hu ◽  
Tao Liu ◽  
Jin-Shan Xu ◽  
...  
Keyword(s):  
Sensor Network ◽  
Construction Scheme ◽  
Target Circle ◽  
Directional Sensor Network ◽  
Directional Sensor

Scheduling algorithms for extending directional sensor network lifetime

2014 ◽  
Vol 21 (2) ◽  
pp. 611-623 ◽  
Author(s):  
Hosein Mohamadi ◽  
Shaharuddin Salleh ◽  
Abdul Samad Ismail ◽  
Sara Marouf
Keyword(s):  
Sensor Network ◽  
Network Lifetime ◽  
Scheduling Algorithms ◽  
Directional Sensor Network ◽  
Directional Sensor
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