Physical layer security of multiple‐input–multiple‐output systems with transmit beamforming in Rayleigh fading
Why this work is in the frame
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Bibliographic record
Abstract
This study analyses the physical layer security in the wiretap channel for multiple‐input–multiple‐output transmit‐beamforming (TB) systems with maximal ratio combining (MRC) receivers. The TB is designed to maximise the signal‐to‐noise ratio (SNR) at the main receiver output. The authors assume that both legitimate and eavesdropper receivers have the knowledge of their own channel state information (CSI). Furthermore, they consider that the transmitter has the full CSI of the main channel and does not have the CSI of the eavesdropper's channel. At the eavesdropper, two combining methods are considered: (i) MRC technique and (ii) selection combining method. They derive closed‐form expressions for the exact secrecy outage probability (SOP) and the probability of strictly positive secrecy capacity. Expressions of the asymptotic SOP and the asymptotic ε ‐outage secrecy capacity are also derived. The secrecy diversity order and the secrecy SNR gain are then obtained.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 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