It can be seen that Machine-to-Machine (M2M) devices will be widely deployed in the near future. However, because of the scarce spectrum, it is difficult to support such a large number of devices only depending on the licensed spectrum. On the contrary, unlicensed spectrums are a better choice for many enterprises which prefer to build M2M networks independently. In this paper, we present a narrowband M2M communications system on the unlicensed spectrum (U-NB-M2M). The key principles of the system design are reduced energy consumption, low complexity, high feasibility and reliability. In addition, this article provides several schemes on how to improve the coverage of our proposed M2M system. An experimental platform is built to evaluate the performance of the proposed system by various metrics and the simulation results prove that our proposed schemes achieve significant coverage enhancement.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Research on Coverage Enhancement of Narrowband M2M Communications Based on Unlicensed Spectrum


    Beteiligte:
    Xu, Shaoyi (Autor:in) / Wang, Dong (Autor:in) / Gao, Feng (Autor:in) / Li, Hantao (Autor:in)


    Erscheinungsdatum :

    2017-09-01


    Format / Umfang :

    432076 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Addressing Deep Indoor Coverage in Narrowband-5G

    Gangakhedkar, Sandip / Bulakci, Oemer / Eichinger, Joseph | IEEE | 2017


    Spectrum efficient digital communications for 220-222 MHz narrowband land mobile channels

    Froelich,S. / United Parcel Service,US | Kraftfahrwesen | 1993


    Unlicensed Technology Assessment for Uas Communications

    Kuroda, Vanessa / Egorov, Maxim / Munn, Steven et al. | IEEE | 2020


    Research into unlicensed drivers

    Cox, D. J. / Great Britain | British Library Conference Proceedings | 2002


    A PUCCH Coverage Enhancement Scheme for 5G/6G Wireless Communications

    Luo, Wenqi / Liu, Congxi / Wu, Xiaoxu et al. | IEEE | 2023