Dynamic Beam Selection for Beam-RSRP Based Direction Finding in mmW 5G Networks

Elizaveta Rastorgueva-Foi, Mário Costa, Mike Koivisto, Kari Leppänen, Mikko Valkama

    Tutkimustuotos: KonferenssiartikkeliScientificvertaisarvioitu

    1 Sitaatiot (Scopus)
    31 Lataukset (Pure)

    Abstrakti

    This paper considers direction-finding in millimeter wave (mmW) fifth generation (5G) networks by means of beam-based downlink (DL) reference signal received power (RSRP) measurements and subsequent reporting. In particular, we propose two methods that allow user equipments (UEs) to select, in an independent and dynamic manner, the most-relevant beam-RSRP (BRSRP) measurements as a trade-off between angle-related information and load of the feedback channel. A likelihood ratio (LR)-test is derived in which the hypothesis for “noise-only” BRSRP measurement is compared to that of “reference signal (RS)-plus-noise” observations, under a given significance level. A power threshold based method is also proposed in which the BRSRP measurements are compared to a threshold proportional to the noise power. Such a noise variance is estimated at each UE independently. The performance of the proposed beam selection schemes is assessed by means of an extended Kalman filter (EKF) tracking the direction of departure (DoD) of the line-of-sight (LoS) path between base stations (BSs) and a UE. Extensive numerical results are provided on a realistic mmW 5G outdoor deployment scenario operating at 39 GHz and with a ray-tracing propagation model based on the METIS Madrid grid.
    AlkuperäiskieliEnglanti
    Otsikko2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN)
    KustantajaIEEE
    ISBN (elektroninen)978-1-5386-5635-8
    ISBN (painettu)978-1-5386-5636-5
    DOI - pysyväislinkit
    TilaJulkaistu - 2018
    OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
    TapahtumaInternational Conference on Indoor Positioning and Indoor Navigation - Nantes, Ranska
    Kesto: 24 syysk. 201827 syysk. 2018

    Julkaisusarja

    Nimi
    ISSN (elektroninen)2471-917X

    Conference

    ConferenceInternational Conference on Indoor Positioning and Indoor Navigation
    LyhennettäIPIN 2018
    Maa/AlueRanska
    KaupunkiNantes
    Ajanjakso24/09/1827/09/18

    Julkaisufoorumi-taso

    • Jufo-taso 1

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