Basic Send-on-Delta Sampling for Signal Tracking-Error Reduction

This paper investigates the dynamic selection of an appropriate threshold for basic Send-on-Delta (SoD) sampling strategies, given an available transmission rate to reduce the signal tracking-error. The paper formulates the error-reduction principle and proposes an algorithm that calculates, in real...

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Main Authors: Miguel Diaz-Cacho, Emma Delgado, Antonio Barreiro, Pablo Falcón
Format: Article
Language:English
Published: MDPI AG 2017-02-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/17/2/312
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author Miguel Diaz-Cacho
Emma Delgado
Antonio Barreiro
Pablo Falcón
author_facet Miguel Diaz-Cacho
Emma Delgado
Antonio Barreiro
Pablo Falcón
author_sort Miguel Diaz-Cacho
collection DOAJ
description This paper investigates the dynamic selection of an appropriate threshold for basic Send-on-Delta (SoD) sampling strategies, given an available transmission rate to reduce the signal tracking-error. The paper formulates the error-reduction principle and proposes an algorithm that calculates, in real time, the amplitude threshold value (also called delta value) for a desired mean transmission rate. The algorithm is implemented to be computed in a Send-on-Delta driver and is tested with three signals that match the step response of a second order control system. Comparison results with a conformant periodic transmission strategy reveals that it improves deeply the tracking-error while maintaining the desired average throughput.
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spelling doaj.art-5bc39b2caa304b8c9ccbbc6dbc4cba122022-12-22T04:10:25ZengMDPI AGSensors1424-82202017-02-0117231210.3390/s17020312s17020312Basic Send-on-Delta Sampling for Signal Tracking-Error ReductionMiguel Diaz-Cacho0Emma Delgado1Antonio Barreiro2Pablo Falcón3School of Computer Engineering, Campus de Ourense, Edificio Politecnico, 32004 Ourense, SpainSchool of Industrial Engineering, Campus Lagoas-Marcosende, 36310 Vigo, SpainSchool of Industrial Engineering, Campus Lagoas-Marcosende, 36310 Vigo, SpainSchool of Industrial Engineering, Campus Lagoas-Marcosende, 36310 Vigo, SpainThis paper investigates the dynamic selection of an appropriate threshold for basic Send-on-Delta (SoD) sampling strategies, given an available transmission rate to reduce the signal tracking-error. The paper formulates the error-reduction principle and proposes an algorithm that calculates, in real time, the amplitude threshold value (also called delta value) for a desired mean transmission rate. The algorithm is implemented to be computed in a Send-on-Delta driver and is tested with three signals that match the step response of a second order control system. Comparison results with a conformant periodic transmission strategy reveals that it improves deeply the tracking-error while maintaining the desired average throughput.http://www.mdpi.com/1424-8220/17/2/312Send-on-Deltadeadbandtracking errornetworks
spellingShingle Miguel Diaz-Cacho
Emma Delgado
Antonio Barreiro
Pablo Falcón
Basic Send-on-Delta Sampling for Signal Tracking-Error Reduction
Sensors
Send-on-Delta
deadband
tracking error
networks
title Basic Send-on-Delta Sampling for Signal Tracking-Error Reduction
title_full Basic Send-on-Delta Sampling for Signal Tracking-Error Reduction
title_fullStr Basic Send-on-Delta Sampling for Signal Tracking-Error Reduction
title_full_unstemmed Basic Send-on-Delta Sampling for Signal Tracking-Error Reduction
title_short Basic Send-on-Delta Sampling for Signal Tracking-Error Reduction
title_sort basic send on delta sampling for signal tracking error reduction
topic Send-on-Delta
deadband
tracking error
networks
url http://www.mdpi.com/1424-8220/17/2/312
work_keys_str_mv AT migueldiazcacho basicsendondeltasamplingforsignaltrackingerrorreduction
AT emmadelgado basicsendondeltasamplingforsignaltrackingerrorreduction
AT antoniobarreiro basicsendondeltasamplingforsignaltrackingerrorreduction
AT pablofalcon basicsendondeltasamplingforsignaltrackingerrorreduction