With the fast development of unmanned aerial vehicles (UAVs), reliable UAV communication is becoming increasingly vital. The channel knowledge map (CKM) is a crucial bridge connecting the environment and the propagation channel that may visually depict channel characteristics. This paper presents a comprehensive scheme based on a UAV-assisted channel measurement system for constructing the CKM in real-world scenarios. Firstly, a three-dimensional (3D) CKM construction scheme for real-world scenarios is provided, which involves channel knowledge extraction, mapping, and completion. Secondly, an algorithm of channel knowledge extraction and completion is proposed. The sparse channel knowledge is extracted based on the sliding correlation and constant false alarm rate (CFAR) approaches. The 3D Kriging interpolation is used to complete the sparse channel knowledge. Finally, a UAV-assisted channel measurement system is developed and CKM measurement campaigns are conducted in campus and farmland scenarios. The path loss (PL) and root mean square delay spread (RMS-DS) are measured at different heights to determine CKMs. The measured and analyzed results show that the proposed construction scheme can effectively and accurately construct the CKMs in real-world scenarios.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Channel Knowledge Map Construction Based on a UAV-Assisted Channel Measurement System


    Beteiligte:
    Yanheng Qiu (Autor:in) / Xiaomin Chen (Autor:in) / Kai Mao (Autor:in) / Xuchao Ye (Autor:in) / Hanpeng Li (Autor:in) / Farman Ali (Autor:in) / Yang Huang (Autor:in) / Qiuming Zhu (Autor:in)


    Erscheinungsdatum :

    2024




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Channel system hatch cover construction method

    WU HAO / ZHOU FEI / HUANG YONGJUN et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Construction method of interpretable machine learning assisted channel model in mixed traffic

    YUE WENWEI / LI JINGLI / ZHANG DANWEN et al. | Europäisches Patentamt | 2024

    Freier Zugriff


    Channel Charting Assisted Beam Tracking

    Kazemi, Parham / Al-Tous, Hanan / Studer, Christoph et al. | IEEE | 2022