Mobile network operators constantly have to upgrade their cellular network to satisfy the public’s hunger for increasing data capacity. However, regulatory limits regarding allowed electromagnetic field strength on existing cell sites often limit or prevent the installation of new cells on additional frequency bands. Further densifying the radio access infrastructure by means of new cell sites takes time because of the site acquisition, the need for permissions, and the civil construction. To this end, amplify-and-forward repeaters are a cost-efficient method to provide mobile wireless data capacity to concealed areas outdoors, inside buildings, or vehicles, where low signal levels drastically limit the achievable capacity or even prevent communication with distant base stations. Repeaters with high-gain beamforming antennas can be used to decrease the path loss and thereby offer a higher capacity than user equipment otherwise could achieve. Since those highly directional beams must be constantly adjusted, we propose methods to align and track the beam even without having access to in-band beam control mechanisms. Numerical analyses with measurement data show that such non-invasive (system data-agnostic) methods are feasible and only incur a few percent in throughput reduction.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Beam Selection and Tracking for Amplify-and-Forward Repeaters


    Contributors:


    Publication date :

    2022-06-01


    Size :

    3427718 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Telephone repeaters

    Wallis, J.H. | Engineering Index Backfile | 1951



    Coastguard v.h.f. repeaters

    Tuke, J.B. | Tema Archive | 1975


    Soft gamma repeaters

    Hurley, Kevin | Online Contents | 2011


    Free Space Optical Communications via Optical Amplify-and-Forward Relaying

    Karimi, M. / Nasiri-Kenari, M. | British Library Online Contents | 2011