Stratified diagonal layered space-time architectures: signal processing and information theoretic aspects
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Bibliographic record
Abstract
We consider a multielement antenna system that uses M transmit and N receive antennas [an (M,N) wireless link] impaired by additive white Gaussian noise in a quasistatic flat-fading channel environment. The transmitter, which is subject to a power constraint, does not know the random outcome of the matrix channel but does know the channel statistics. The link operates under a probability of outage constraint. We present a novel architecture using stratified space-time diagonals to express a message for efficient communications. The special message arrangement, which is termed stratified-diagonal-BLAST (SD-BLAST), enables receiver signal processing that substantially mutes self interference caused by multipath without incurring waste of space-time. We investigate the proposed communication structure in important downlink categories, showing that, in theory, the message architecture is optimally efficient for all (M, 1) systems and extremely efficient when M/spl Gt/N. We quantify the capacity performance of SD-BLAST using empirically generated complementary cumulative distribution functions (CCDFs) for (16, 5), (8, 3), and (4, 2) systems to exhibit near optimal performance most especially for the (16, 5) system.
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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 | 0.000 | 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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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