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Toward an Efficient and Reliable Nonlinearity Measure

2012· article· en· W2148516786 on OpenAlexaff
Tarek Helaly, Richard M. Dansereau

Bibliographic record

VenueIEEE Communications Letters · 2012
Typearticle
Languageen
FieldEngineering
TopicAdvanced Power Amplifier Design
Canadian institutionsCarleton University
Fundersnot available
KeywordsNonlinear distortionMeasure (data warehouse)Bit error rateTelecommunications linkNonlinear systemComputer scienceDistortion (music)Exponential functionExpression (computer science)Modulation (music)Signal-to-noise ratio (imaging)Power (physics)AlgorithmSequence (biology)AmplifierMathematicsTelecommunicationsDecoding methodsBandwidth (computing)

Abstract

fetched live from OpenAlex

In this letter, an efficient and reliable nonlinearity measure for quantifying the nonlinear distortion (NLD) is formulated. In order to achieve such a formulation, the bit error rate (BER) performance of the downlink of direct sequence-code division multiple access, in presence of NLD caused by a predistorter-high power amplifier (PD-HPA) is investigated. Exponential curve fitting is used to develop an approximate expression for the BER performance, through which the nonlinearity measure is formulated. The proposed measure is characterized by having a direct link with the BER performance in addition of being dependent of the input back-off level.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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: Empirical · Consensus signal: Empirical
Teacher disagreement score0.412
Threshold uncertainty score0.508

Codex and Gemma teacher scores by category

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 communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.058
GPT teacher head0.275
Teacher spread0.217 · 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 teacher head, not a consensus.

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

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
Published2012
Admission routes1
Has abstractyes

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