Özdemir, Özgür2022-11-282022-11-2820229781665450928https://doi.org/10.1109/SIU55565.2022.9864965https://doi.org/10.1109/SIU55565.2022.9864965https://hdl.handle.net/20.500.13091/316530th Signal Processing and Communications Applications Conference, SIU 2022 -- 15 May 2022 through 18 May 2022 -- 182415In this paper, multiple access relay channel (MARC) where multiple users communicate with a common destination via a relay using ideas from network coding is considered. Noncoherent binary frequency shift keying (BFSK) is employed to eliminate the channel estimation cost of the system and log-likelihood ratio (LLR) of network coded symbol is transmitted from the relay terminal to mitigate error propagation. The bit error rate (BER) performance of the system over Rayleigh fading channels are obtained by simulation results and it is seen that MARC model based on noncoherent BFSK signaling and LLR transmission from the relay provides full diversity gain. © 2022 IEEE.eninfo:eu-repo/semantics/closedAccesslog-likelihood ratio transmissionmultiple access relay channelnon-coherent BFKSBit error rateChannel codingElectric relaysFading channelsFrequency estimationLunar surface analysisRayleigh fadingBinary frequency shift keyingCoded symbolsFrequency-shift keying modulationLog likelihood ratioLog-likelihood ratio transmissionMitigate errorsMultiple access relay channelMultiple userNon-coherent BFKSRelay terminalsNetwork codingConference Object10.1109/SIU55565.2022.98649652-s2.0-85138709013