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Optimization of secondary system antenna deployment in shared spectrum access




TekijätJaakko Ojaniemi, Jussi Poikonen, Risto Wichman

Julkaisuvuosi2016

JournalIEEE Transactions on Vehicular Technology

Vuosikerta65

Numero5

Aloitussivu3536

Lopetussivu3546

Sivujen määrä11

ISSN0018-9545

DOIhttps://doi.org/10.1109/TVT.2015.2452258


Tiivistelmä

This work focuses on implementation of dynamic spectrum access in a scenario where existing wireless infrastructure is shared by a secondary cellular system. We study the optimization of the physical antenna configuration of the secondary system base stations, assuming that these antennas are deployed at the transmitter sites of a primary broadcast network. Specifically, we maximize the throughput of a secondary network (SN) operating within a primary network (PN) by finding the optimal antenna height and vertical tilt for the SN base stations. This optimization is constrained by the physical restrictions in the deployment site, and by the maximum allowed interference to the PN. We show that this optimization provides significant gain in the cell throughput of the SN while reducing interference towards users of the primary system. As a case study, we design an optimized configuration for the SN antenna when SN operates as a dedicated communication link for regional transport system. To this end, field measurement data gathered in collaboration with a regional transport authority is used to calibrate the presented modeling method.



Last updated on 2024-26-11 at 12:15