Optimal Non-regenerative Linear MIMO Relay for Orthogonal Space Time Codes
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
We consider a multi-input multi-output (MIMO) communication system in which a linear non-regenerative MIMO relay assists the data transmission between a source and a destination node using orthogonal space time block codes (OSTBC). We derive the relay transformation matrix (RTM) by minimizing the symbol error rate (or maximizing the capacity) of the system under a constraint on the relay’s transmitted power. The RTM is derived in the presence of the direct source-destination path and for spatially-correlated additive noise vectors. We show that the proposed RTM can significantly enhance the performance of the system in terms of the capacity/symbol error rate. Interestingly, our simulation results, in various conditions, reveal that the proposed method provides close to the optimum data rate even for the system without OSTBC. This suboptimal approach is justified, as the complexity of computing the proposed RTM is significantly less than the computation complexity of the RTM which maximizes the non-regenerative capacity.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| 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