Performance of DPPAM UWB Communication Systems over Indoor Fading Channels
Bibliographic record
Abstract
Differential pulse position amplitude modulation (DPPAM) is considered in an ultra wideband (UWB) communication system. DPPAM combines differential pulse position modulation (DPPM) and pulse amplitude modulation (PAM) to provide good performance with low computational complexity. The DPPAM UWB signal is derived from that of pulse position amplitude modulation (PPAM). The frame error rate (FER) of MN- ary DPPAM systems over additive white Gaussian noise (AWGN) and indoor fading channels is analyzed. The results show that the FER performance with 2N-ary DPPAM is better than that with 2N-ary DPPM and PPM, and MN-ary (M>;2) DPPAM provides a good compromise between FER and complexity.
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 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".