Wireless fidelity (Wi-Fi) has become a key access technology, which offloads significant percentage of mobile Internet traffic. Nevertheless, QoS provisioning over dense WiFi faces many challenges due to the nature of its contention-based protocol and poor inter-network coordination. In light of this, long-term evolution (LTE) technology, which benefits from centralized coordination, has been proposed to exploit unlicensed spectrum through LTE-U for data offloading. However, the prosperity of deploying LTE in very crowded unlicensed band relies on the effective coexistence among LTE-U and increasingly dense Wi-Fi networks. In this paper, we propose to use the space dimension and beamforming to facilitate the effective coexistence and inter-network coordination. Two distinct approaches to evaluate the proposed coexistence mechanism, namely, Wi-Fi received power minimization and LTE user signal to noise ratio (SNR) maximization, have been investigated. The two proposed algorithms are simulated to show the potential and effective feasibility of coexistence between Wi-Fi and LTE in unlicensed spectrum.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Cognitive Co-Existence of Unlicensed Wireless Networks through Beamforming


    Beteiligte:
    Zafari, Golara (Autor:in) / Wang, Xianbin (Autor:in)


    Erscheinungsdatum :

    2017-09-01


    Format / Umfang :

    185722 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Increasing the Throughput of an Unlicensed Wireless Network through Retransmissions

    Ramezanipour, Iran / Nardelli, Pedro H. J. / Alves, Hirley et al. | IEEE | 2018



    Classification-based Optimal Beamforming for NOMA Wireless Relay Networks

    Gau, Rung-Hung / Chiu, Hsiao-Ting / Lu, Tsung-Che | IEEE | 2021



    Practical optical beamforming networks

    Frankel, M. Y. / Matthews, P. J. / Esman, R. D. et al. | British Library Online Contents | 1998