This paper proposes a new multi-user detection scheme for sparse code multiple access (SCMA) system in grant- free scenario. SCMA systems use a message passing algorithm which considers all user equipments (UEs) to be active. However, in a practical system, UEs do not always request resources. A multi-user detection procedure enables the decoder to mitigate interference from proper active UEs and to ignore the signal from inactive UEs. Therefore, we propose a multi-user detection scheme for SCMA system. The simulation results present that the proposed SCMA receiver structure achieves a remarkable enhancement in false alarm probability, miss detection probability.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Multi-User Detections for Sparse Code Multiple Access System


    Contributors:
    Kim, Joonki (author) / Hong, Daesik (author)


    Publication date :

    2018-08-01


    Size :

    236138 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Sparse Code Multiple Access for 5G Radio Transmission

    Wu, Yiqun / Wang, Chao / Chen, Yan et al. | IEEE | 2017


    Subcarrier and Power Allocation for Sparse Code Multiple Access

    Licea, Yanely Jimenez / Shen, Kevin / So, Daniel K. C. | IEEE | 2020


    Hardware Design and Implementation of Sparse Code Multiple Access

    Wu, Yunfei / Dai, Jincheng / Niu, Kai et al. | IEEE | 2017


    Large-Scale Grant-Free Sparse Chaos Code Multiple Access Scheme for 5G IoT

    Okamoto, Eiji / Horiike, Naoto / Yamamoto, Tetsuya | IEEE | 2018


    Joint Time and Angle Domain Sparse Code Multiple Access for mmWave Systems

    Yu, Xiaoxia / Zhang, Zhaoyang / Wang, Jue et al. | IEEE | 2019