LLR selection combining in multiple relay cooperative communication

다중 릴레이 협력통신의 LLR 선택적 합성기술

We propose a LLR (log-likelihood ratio) selection combining technique that reduces much of complexity. This technique chooses the most reliable branch based on the magnitude of the LLR of each branch. We show that the proposed selection combining achieves significant power gains over conventional selection combining and nearly matches the performance provided by MRC.