Fully Integrated Sub-Microwatt CMOS Ultra Wideband Pulse-Based Transmitter for Wireless Sensors Networks
Bibliographic record
Abstract
This paper presents the design of a fully integrated sub-microWatt CMOS ultra-wideband (UWB) pulse-based transmitter, aimed for low data rate wireless sensors networks. The transmitter consists of a current starving clock, an all-digital pulse generator, and a 2nd derivative Gaussian pulse shaping network with 50 Omega driving capability. The design is implemented in a standard CMOS 0.18 mum process. A typical pulse width of 170 ps is achieved. Two commonly used modulation schemes are investigated. Namely, on-off keying (OOK) and pulse-position modulation (PPM). The complete design occupies an area of 0.14 mm2and consumes an average power of 326.3 nW at 200 Kpps (pulse-per-second) with a 1.5 V supply. At a maximum pulse repetition rate of 100 MHz, the transmitter consumes no more than 82 muW in power, which is among the lowest in transmitter designs reported to date
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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 | 0.000 | 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 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".