Results 271 to 280 of about 12,599,671 (317)

Disaster Area Coverage Optimisation Using Reinforcement Learning

International Conference on Unmanned Aircraft Systems
Search and rescue applications using unmanned aerial vehicles (UAVs) also known as drones are becoming a research topic of interest to industry and academia due to its high impact in the ecosystem and people. Exploration of the disaster area is a crucial
Ciaran Gruffeille, Adolfo Perrusquía, A. Tsourdos, Weisi Guo   +3 more
semanticscholar   +1 more source

Coverage area prediction for HDTV

Proceedings of APCCAS'94 - 1994 Asia Pacific Conference on Circuits and Systems, 2002
A coverage area prediction method developed in TL (Telecommunication Laboratories) is introduced. The program uses a simple method to predict the signal interference and coverage area automatically and quickly. This technique helps us to re-allocate the site and frequency of radio stations efficiently, especially useful for the advent of HDTV.
null Feng-Li Lin, null Shih-Jack Chang, null Heng-Dao Lin   +2 more
openaire   +1 more source

Joint Optimization of Area Coverage and Mobile-Edge Computing With Clustering for FANETs

IEEE Internet of Things Journal, 2020
Area coverage is one of the most common and important tasks for flying ad hoc networks (FANETs). The increasingly large scale of FANETs brings challenges in communication and coverage.
Wenjing You, Chao Dong, Xiao-rong Cheng, Xiaojun Zhu, Qihui Wu, Guihai Chen   +5 more
semanticscholar   +1 more source

Coverage Contribution Area Based $k$ -Coverage for Wireless Sensor Networks

IEEE Transactions on Vehicular Technology, 2017
Coverage is a primary metric for ensuring the quality of services provided by a wireless sensor network (WSN). In this paper, we focus on the $k$ -coverage problem, which requires a selection of a minimum subset of nodes among the deployed ones such that each point in the target region is covered by at least $k$ nodes.
Jiguo Yu, Shengli Wan, Xiuzhen Cheng, Dongxiao Yu   +3 more
openaire   +1 more source

On Area Coverage Reliability of Mobile Wireless Sensor Networks With Multistate Nodes

IEEE Sensors Journal, 2020
Wireless sensor networks (WSNs) are a special type of infrastructure-less network made up of a large number of tiny sensor nodes with limited energy, processing, and communication capabilities.
Suparna Chakraborty, N. Goyal, S. Soh
semanticscholar   +1 more source

Radio Broadcast Coverage of City Areas

Transactions of the American Institute of Electrical Engineers, 1926
l. Radio broadcasting involves a system of electrical distribution in which dependent relations exist between the transmitting station, the transmitting medium and the receiving station. 2. The attenuation and fading which attend the spreading out of broadcast waves are considered.
openaire   +1 more source

Radio coverage-area survey-instrumentation research

IRE Transactions on Vehicular Communications, 1960
The results of an experimental investigation on the problem of rapidly siting UHF and SHF radio relay type communications links in army grid networks are summarized. A requirement existed for a technique for locating suitable low loss transmission paths between fifteen foot high vehicular mounted antennas, separated at distances from one to ten miles ...
C.E. Sharp, R.E. Lacy
openaire   +1 more source

Graph-based path planning for intelligent UAVs in area coverage applications

Journal of Intelligent & Fuzzy Systems, 2020
In recent times, Unmanned Air Vehicles (UAVs) are being deployed for several tasks of terrain coverage such as surveillance, photogrammetry, smart irrigation, civil security, and disaster management. In these applications, one of the most vital issues to
Akshya Jothi, P. Priyadarsini
semanticscholar   +1 more source

Multiple UAV area decomposition and coverage

2013 IEEE Symposium on Computational Intelligence for Security and Defense Applications (CISDA), 2013
Multiple UAVs can be used to cover a region effectively. Area coverage involves two stages - area decomposition into cells and path planning inside the cells. The area is decomposed using sweeping technique. For path planning inside the cells, a novel method is developed where optimal number of lanes are generated to minimize the number of UAV turns to
J. F. Araujo, P. B. Sujit, J. B. Sousa
openaire   +1 more source

Percent area coverage through image analysis

SPIE Proceedings, 2016
The notion of percent area coverage (PAC) has been used to characterize surface cleanliness levels in the spacecraft contamination control community. Due to the lack of detailed particle data, PAC has been conventionally calculated by multiplying the particle surface density in predetermined particle size bins by a set of coefficients per MIL-STD-1246C.
Chung M. Wong, Sung M. Hong, De-Ling Liu
openaire   +1 more source