This paper investigates the performance of an uplink Non-orthogonal Multiple Access (NOMA) with discrete M-QAM modulation and fixed power coefficients. Specifically, an uplink NOMA with a base station and two users are considered and two different performance metrics, namely bit error rate and spectral efficiency, are investigated. We provide closed-form expressions for the average spectral efficiency of NOMA with M-QAM which shows that the performance of the weak user is limited to a certain value which depends on the power coefficients solely. Moreover, results of closed-form expressions and simulation are compared to verify the expressions and to analyze the performance of the proposed NOMA system. The simulation results show that increasing the power coefficient of weak user can improve the weak user’s performance in high SNRs, but it does not work well in low SNRs.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance Analysis for NOMA with M-QAM Modulation


    Contributors:


    Publication date :

    2020-05-01


    Size :

    119388 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    On Performance of Cooperative OFDM Index Modulation Aided Hybrid NOMA System

    Makkar, Rahul / Jain, Monika / Rawal, Divyang et al. | IEEE | 2024


    Performance Analysis of Decentralized V2X System with FD-NOMA

    Zhang, Di / Liu, Yuanwei / Dai, Linglong et al. | IEEE | 2019


    Uplink Performance Analysis of Grant-Free NOMA Networks

    Zhengy, Canjian / Zhengy, Fu-Chun / Luoy, Jingjing et al. | IEEE | 2022


    Min-Max Design and Analysis of NOMA with Adaptive Modulation Under BLER Constraints

    Yahya, Hamad / Alsusa, Emad AlsusaEmad / Al-Dweik, Arafat | IEEE | 2022


    Performance Analysis of Ambient Backscatter Uplink NOMA Networks

    Chrysologou, Athanasios P. / Chatzidiamantis, Nestor D. / Boulogeorgos, Alexandros-Apostolos A. et al. | IEEE | 2023