Preemptive reservation arbitrated access for transporting variable bit rate isochronous traffic over dual bus metropolitan area networks
Bibliographic record
Abstract
This paper proposes and analyzes a preemptive reservation arbitrated access scheme to facilitate the transport of real time traffic over dual bus metropolitan area networks (MANs) on a bandwidth on demand basis. This access protocol allows full statistical multiplexing among variable bit rate isochronous (VBRI) traffic while providing nearly isochronous transport service thus enabling significant capacity improvement compared to pre-arbitrated (PA) access. We have analyzed its performance by simulations validated by idealized analytical results. Results indicate that at the expense of requiring one more control bit in the access control field (ACF), preemptive RA access provides much fairer service than the 1-persistent RA access scheme. It is also not too sensitive to propagation delay unless the delay is unrealistically high. In general, RA access offers a valuable complement to the existing PA and queue-arbitrated (QA) access methods to provide a complete set of transport solutions for all B-ISDN services.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".