This paper proposes an adaptive cooperative non-orthogonal multiple access (NOMA) scheme for power line communication (PLC) networks, in which the source superimposes the data symbols to two users. Specifically, the source communicates with the far-user with the assistance of relay. Meanwhile, depending on negligible 1-bit feedback, the near-user is reached through an adaptive way which switches between a direct and a cooperative data transmission mode, resulting in an enhancement of the system throughput and a more reliable data reception at the near-user. For this setting, we then analyze the system throughput over the log-normal distributed channel fading with the impulsive noise and investigate the impact of key system parameters. The simulation results validate the theoretical analysis and show that our scheme can obtain a better throughput performance with lower power consumption and reduce the electromagnetic compatibility (EMC) issues for PLC networks more efficiently than the time division multiple access (TDMA) and traditional cooperative NOMA (TCN) schemes.
INDEX TERMS Power line communication (PLC), non-orthogonal multiple access (NOMA), log-normal distribution, impulsive noise, system throughput.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.