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Cooperative relaying can further improve cell coverage, energy efficiency, spatial diversity, and overall system performance. The source could transmit data to the unreachable destination with the help of a relay. Recently, Cooperative Relaying has been integrated into NOMA networks. This integration enables transmitting data symbol to destination in only two-time intervals. Unlike conventional cooperative relaying network models, the NOMA-based network diamond relaying (NDR) model could simultaneously convey two symbols to the destination within only two-time transmission phases, thus increasing the multiplexing gain.
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IEEE/ICACT20220371 Slide.03
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