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Record W3167446093 · doi:10.22215/etd/2020-14432

Hybrid Localization for UAV-based Charging of Wireless Sensor Networks

2020· dissertation· en· W3167446093 on OpenAlexaff
Paul Durham

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEngineering
TopicIndoor and Outdoor Localization Technologies
Canadian institutionsCarleton University
Fundersnot available
KeywordsNode (physics)Wireless sensor networkPosition (finance)WirelessFadingComputer scienceSignal strengthReal-time computingKey distribution in wireless sensor networksScheme (mathematics)Computer networkWireless networkEngineeringTelecommunications

Abstract

fetched live from OpenAlex

In Wireless Sensor Networks (WSNs) localization -the assigning of sufficiently accurate positions to nodes -is frequently required to meaningfully identify the data collected.In Wireless Rechargeable Sensor Networks (WRSNs) -in which nodes are recharged by some external energy source -high accuracy (e.g.smaller than the mean internode distance) is often required to enable charging in a reasonably efficient manner with practical charger power.Localization in Wireless Sensor Networks (WSNs) has attracted research among various strategies, some using Received Signal Strength Indication (RSSI) at nodes.Nodes with known position, called anchors, may be fixed or mobile.Position may be computed by global optimization, or locally between anchors and nodes.For Wireless Rechargeable Sensor Networks (WRSNs), a charger may act as a mobile anchor enabling high-accuracy localization for efficient RF charging.This study describes a hybrid scheme for localization and charging of WRSNs using an Unmanned Aerial Vehicle (UAV) carrying a node and an RF charger.It works reliably under log-normal fading of RSSI due to shadowing.RSSI localization brings the UAV close enough to the node to elicit a response from the RF charger.The time to charge the node by a given amount is inversely proportional to the power received and thus serves as an indication of proximity of the charger.This metric (ToC) is then used to position the UAV accurately above the node, to allow for charging with maximum efficiency.v 3.7 ToC Refinement .......

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.002
Threshold uncertainty score0.007

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.008
GPT teacher head0.216
Teacher spread0.208 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreMethods

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2020
Admission routes1
Has abstractyes

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