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Record W2139998499 · doi:10.1109/ccece.2003.1226213

Multichannel processing of DVB/RCS turbo codes

2004· article· en· W2139998499 on OpenAlexaff
Pouriya Sadeghi, Mohammad Soleymani

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAdvanced Wireless Communication Techniques
Canadian institutionsConcordia University
Fundersnot available
KeywordsTurbo codeComputer scienceTurbo equalizerTurboDecoding methodsSoft-decision decoderSerial concatenated convolutional codesDigital Video BroadcastingThroughputAlgorithmConvolutional codeFrame (networking)BCJR algorithmReal-time computingComputer hardwareComputer engineeringLow-density parity-check codeConcatenated error correction codeWirelessTelecommunicationsBlock codeError floorEngineering

Abstract

fetched live from OpenAlex

Turbo decoder is one of the iterative decoders that its performance is very sensitive to the number of iterations it performs. In a multichannel turbo decoding system, each input frame requires different number of iterations to be decoded correctly. An example of these kinds of systems is the base station of mobile communication system, in which turbo decoder is receiving several data frames from several terminals at the same time. If the turbo decoder allocates an equal number of iterations for each of these frames, it will be ideal for some early-corrected frames while it will not have enough iterations to decode some others. In this paper some multichannel processing algorithms are presented to increase the throughput and/or the performance of the turbo decoder systems. Several computer-based simulations for DVB-RCS turbo codes have been performed based on the presented schemes. At the end, a useful implementation algorithm based on those described algorithms is presented which can be utilized in FPGA and other kinds of hardware applications.

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)0.001
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 score0.003
Threshold uncertainty score0.006

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
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)0.0020.000

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 head0.011
GPT teacher head0.244
Teacher spread0.233 · 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
Published2004
Admission routes1
Has abstractyes

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