Optimization of optical signal-to noise ratio by α profile multimode fibre in wireless over fibre link
Bibliographic record
Abstract
The demand of bandwidth in mobile communication is growing exponentially day-by-day, as the number of users have been increasing drastically over the span of last five years. Fibre optics has attracted much attention due to its promising performance and operational cost reduction. In this thesis, the feasibility of using multimode fibre as an inexpensive cell feed in indoor system is investigated. The proposed architecture is analyzed using signal to noise ratio versus GI multimode fibre profile parameter α, cumulative signal to noise ratio, and multipath fading in indoor environment. The objectives of this thesis are: (i)designing COFDM based radio-over-fibre communication system, (ii)analyzing the downlink and uplink performance considering impairements in the fibre and wireless channels and investigating the effect of core refractive index profile (α) on graded index RoF link, (iii)investigating the effect of COFDM cyclic prefix to the graded index multimode fibre dispersion. The performance is evaluated through theoretical analysis and simulations using Matlab. The downlink and uplink analysis are performed considering all the impairements from the air interface and the RoF link. Thereafter, numerical results are generated for the downlink and uplink to illustrate the performance of the COFDM-RoF architecture.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 teacher head, 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".