In this paper, we investigate the problem of distributed coherent beamforming in wireless networks where multiple distributed transmitters adjust the phases of their signals to form a directional and targeted communication link to a client receiver. The quality-of-service (QoS) and security are key components of robust and covert wireless networks. Although the security can be improved by exploiting information about potential adversaries, such information may not be available in practical networks since the adversaries are often passive. Therefore, we introduce transmission strategies which not only send a confidential message by forming a beam towards the client but also broadcast interference with the aim of obfuscating adversaries without having any information about them. Two different client feedback scenarios are considered, two-bit and rich feedback. The proposed algorithms can be performed in a fully distributed manner without any knowledge about potential adversaries. Numerical simulations validate the effectiveness of the proposed schemes.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Simultaneous Beamforming and Nullforming for Covert Wireless Communications


    Beteiligte:
    Kong, Justin (Autor:in) / Dagefu, Fikadu T. (Autor:in) / Sadler, Brian M. (Autor:in)


    Erscheinungsdatum :

    01.05.2020


    Format / Umfang :

    201383 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Distributed Adaptive Beamforming and Nullforming for Covert Wireless Communications

    Kong, Justin / Dagefu, Fikadu T. / Sadler, Brian M. | IEEE | 2019


    Covert communications

    Crepeau, P.J. | Tema Archiv | 1977


    A survey of covert UAV communications

    YANG, Fangtao / QIN, Xiaoqi / GONG, Shiqi et al. | Elsevier | 2025

    Freier Zugriff