As a promising technology for future networks, non-orthogonal multiple access (NOMA) has drawn great attention for its enhanced throughput with massive connectivity. Most of the existing NOMA schemes employ the ideal information rate as the performance metric, assuming perfect successive interference cancellation (SIC), which may lead to suboptimal performance in practice. In this paper, by considering the imperfect SIC and practical modulation schemes, we propose a power control scheme for uplink NOMA systems with the aim of maximizing the effective throughput. To address this problem, we first analyze the symbol error probabilities of two users employing the quadrature amplitude modulation (QAM) scheme, and then a specific expression of the effective system throughput is provided, which considers both the error performance and the data rate. Considering the complicated effective throughput expression of the uplink NOMA design, we next derive a lower bound of the effective throughput and consequently obtain an efficient power control scheme in closed form by maximizing the lower bound of the effective throughput. Numerical results are provided to demonstrate the superiority of our proposed scheme.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Maximum Effective Throughput for Uplink NOMA Systems With Practical Modulations


    Beteiligte:
    Song, Yifei (Autor:in) / Wang, Yuan (Autor:in) / Zhong, Tianying (Autor:in) / Wang, Jiaheng (Autor:in) / Yin, Yuan (Autor:in) / Gao, Xiqi (Autor:in)


    Erscheinungsdatum :

    07.10.2024


    Format / Umfang :

    400961 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Fairness Comparison of Uplink NOMA and OMA

    Wei, Zhiqiang / Guo, Jiajia / Ng, Derrick Wing Kwan et al. | IEEE | 2017


    Error-Compensated Adaptive Modulation and Coding for Uplink NOMA Systems

    Wang, Kaijie / Zhou, Ting / Xu, Tianheng et al. | IEEE | 2022


    Uplink Performance Analysis of Grant-Free NOMA Networks

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


    Joint uplink PD-NOMA and SCMA for future multiple access systems

    Fu, Xiaotian / Pischella, Mylene / Le Ruyet, Didier | IEEE | 2021