Performance evaluation of DS/CDMA systems employing adaptive transmission rate under imperfect power control
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Bibliographic record
Abstract
Power control is essential for CDMA systems to increase the capacity. Power control based on equalizing the received power levels from different users was proposed. Perfect power control is hard to achieve for high mobility users. The error in the received signal is usually modeled as a lognormal variable with a standard deviation that is a function of the mobile's velocity. In a previous work, we have shown that this standard deviation is also a function of whether or not the mobile is communicating with the base station where the power is measured. In this work, we use the error statistics to model the intercell interference. We also employ adaptive rate transmission where the data transmission rate is a function of the number of users in the system and the errors in the power of the received signals. We show that the adaptive rate scheme helps to reduce the blocking probability and the average service time for light traffic conditions. However, for heavy traffic, users reduce their transmission rate and start to accumulate in the system making its performance similar to the constant rate system. Finally, we investigate the effect of imperfect power control on such an adaptive rate scheme.
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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 | 0.003 | 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 | 0.001 |
| 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 it