Search results for "Error mitigation"

showing 3 items of 3 documents

Error mitigation using RaptorQ codes in an experimental indoor free space optical link under the influence of turbulence

2015

In free space optical (FSO) communications, several factors can strongly affect the link quality. Among them, one of the most important impairments that can degrade the FSO link quality and its reliability even under the clear sky conditions consists of optical turbulence. In this work, the authors investigate the generation of both weak and moderate turbulence regimes in an indoor environment to assess the FSO link quality. In particular, they show that, due to the presence of the turbulence, the link experiences both erasure errors and packet losses during transmission, and also compare the experimental statistical distribution of samples with the predicted Gamma Gamma model. Furthermore,…

Computer scienceOptical linkReliability (computer networking)Optical linksTelecommunication network reliabilityRytov variance valueSettore ING-INF/01 - ElettronicaTelecomunicacióRaptorQ codesRedundancy (information theory)Indoor free space optical linkFSO communicationsStatisticsTEORIA DE LA SEÑAL Y COMUNICACIONESRedundancy (engineering)Gamma Gamma modelrateless codeElectrical and Electronic Engineeringpacket error rate (PER)Error-free transmissionNetwork packetbusiness.industrySettore ING-INF/03 - TelecomunicazioniSettore ING-INF/02 - Campi ElettromagneticiÒpticaComputer Science ApplicationsTransmission (telecommunications)Bit error rateErasureProbability distributionFree Space Optical (FSO) communicationTelecommunicationsbusinessOptical turbulenceFSO link reliabilityindoor linkError mitigation
researchProduct

Efficacy of screen recording in the other-revision of translations: episodic memory and event models

2014

In a 2011 study, Angelone compared the self-revision results of graduate German translation students. Participants documented their original translations using Integrated Problem and Decision Reporting (IPDR) logs (Gile 2004), think-aloud protocols and screen recordings. They then used this documentation to assist self-revision of their translations. Angelone found a significant improvement in error detection overall and in each of six discrete error categories when participants used screen recordings to assist their self-revision. We sought to partially replicate Angelone’s findings concerning the efficacy of screen recording in translation revision. Instead of focusing on self-revision, w…

Linguistics and LanguageComputer scienceRevisión en traducción; Registros integrados de problemas y decisiones ; Grabación de pantalla; Memoria episódica; Teoría de la segmentación de eventosTeoría de la segmentación de eventoscomputer.software_genreTranslation revisión; Integrated Problem and Decision Reporting; Screen recording; Episodic memory; Event segmentation theoryLanguage and LinguisticsEducationGermanDocumentationError analysisScreen recordingEpisodic memoryProtocol (science)UNESCO::CIENCIAS DE LAS ARTES Y LAS LETRASTranslation revisionbusiness.industryEvent (computing)Episodic memoryError mitigationIntegrated Problem and Decision ReportingTraducción e InterpretaciónReplicateEvent segmentation theorylanguage.human_languageRegistros integrados de problemas y decisionesRevisión en traducción:CIENCIAS DE LAS ARTES Y LAS LETRAS [UNESCO]languageGrabación de pantallaArtificial intelligencebusinessMemoria episódicacomputerNatural language processing
researchProduct

FREE SPACE OPTICS LINKS AFFECTED BY OPTICAL TURBULENCE: CHANNEL MODELING, MEASUREMENTS AND CODING TECHNIQUES FOR ERROR MITIGATION

2014

FSO is an optical wireless line-of-sight communication system able to offer good broadband performance, electromagnetic interference immunity, high security, license-free operation, low power consumption, ease of relocation, and straightforward installation. It represents a modern technology, significantly functional when it is impossible, expensive or complex to use physical connections or radio links. Unfortunately, since the transmission medium in a terrestrial FSO link is the air, these communications are strongly dependent on various atmospheric phenomena (e.g., rain, snow, optical turbulence and, especially, fog) that can cause losses and fading. Therefore, in worst-case conditions, i…

optical turbulencescintillationrateless codes LT codes Raptor codes RaptorQ codes error mitigation fading mitigation.Free Space Optictime-serieSettore ING-INF/01 - Elettronica
researchProduct