Abstract

In this paper, the performance of Non Orthogonal Multiple Access (NOMA) technique in a cellular downlink scenario is analyzed. The main aim of NOMA is to use the power domain technique for multiple access (MA) to serve multiple users at the same time, frequency, and spreading code simultaneously. Firstly, signals of multiple users are combined using superposition coding (SC) technique at the transmitter and their corresponding signals are decoded by individual user at the receiver using successive interference cancellation (SIC) technique. Secondly, precoding technique is used at the NOMA transceiver to further improve the performance of NOMA and the simulated results of NOMA without and with precoding are compared. We observed that the NOMA using precoding has better bit error rate (BER) performance than the former case of NOMA.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.