Performance analysis of multi‐user scheduling in a spectrum sharing with OSTBC under correlated antennas in a cognitive radio system
Bibliographic record
Abstract
This study presents a performance analysis for a cognitive radio network with multi‐user scheduling in which a primary user can share its licenced spectrum with several secondary users (SUs), each employing Alamouti orthogonal space‐time block coding (OSTBC) with spatially correlated antennas over Rayleigh fading channels. Closed‐form formulae are obtained for the cumulative density function of the signal‐to‐noise‐ratio of SUs with multi‐user scheduling under correlated antennas. Closed‐form mathematical expressions are then derived for three important system performance metrics: the average channel capacity, outage probability, and the average bit error rate of the system. From the numerical results obtained from the derived mathematical expressions, the system performances with different parameters are studied, evaluated and compared showing the effects of spatial correlation on the performance of the system. It is observed that spatially correlated antennas can improve the average channel capacity of the cognitive radio system with user scheduling.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".