PROJECT TITLE :
SNR Decomposition for Full-Duplex Gaussian Relay Channel
A relay channel (RC), consisting of a supply, a relay, and a destination, may be a basic transmission unit of cooperative communication networks. The capability of an RC isn't known in general. In this paper, an SNR decomposition (SD) strategy is presented to implement time sharing, that provides a replacement tractable and achievable rate for a full-duplex Gaussian RC. A lot of specifically, we initial expand the SNR of a relay destination channel (SNR-RD) into two terms beneath the relay power constraint and divide the system into 2 subbands. Then, we assign the obtained SNR-RD for each subband and employ decode-forward (DF) or compress-forward (CF) in step with the assigned SNR-RD. It's shown that the achievable rate of the SD strategy is competitive with that of superposing CF on DF. As the superposition structure requires a refined codeword design, the SD strategy provides another sensible combination structure of DF and CF strategies. Approximations for the SNR-RD and bandwidth allocation for subbands are given. Based on the obtained results, 2 application scenarios, i.e., mobile relay and quasi-static fading RCs, are also considered. Finally, numerous numerical results are shown to support our developed theoretical results.
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