Outdoor Signal Strength Measurement at TV Band and ISM Band in Otaniemi Campus

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.advisorJunell, Jari
dc.contributor.authorHuang, Yi
dc.contributor.schoolSähkötekniikan korkeakoulufi
dc.contributor.supervisorJäntti, Riku
dc.date.accessioned2014-01-10T07:54:30Z
dc.date.available2014-01-10T07:54:30Z
dc.date.issued2013-09-23
dc.description.abstractTV white space technology is being intensively researched as it offers a solution that allows secondary usage of the local unused TV channels on a non-interfering basis to achieve a high spectrum efficiency. This thesis studies the difference between TV band and ISM band outdoor propagation characteristics in Otaniemi campus area. The study aims to verify if the TV band signal could extend the service range with less transmitting power and if it has better propagation and building penetration characteristics than ISM band signal. As part of our research we first perform a state-of-the-art review on TV white space technology including its features, promising applications and the evolution of regulation and standardisation. Then the measurement campaign set up is demonstrated based on the architecture of transmitter and receiver, the signal source and the antenna. Measurements were carried out by two transmitter locations and 49 receiver locations over distances up to 2.6 kilometers. The 'tcpdump' tool in OpenWrt system that embedded in Dlink box was used to measure the received signal characteristics for both bands. The measurement results have been compared with the existing empirical propagation models and the differences between the model predicted and field measured data have been analysed. The results could be considered as a good basis for further theoretical research as well as for practical application research.en
dc.format.extent10+79
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/12011
dc.identifier.urnURN:NBN:fi:aalto-201401101068
dc.language.isoenen
dc.programmeTLT - Master’s Programme in Communications Engineeringfi
dc.programme.majorRadio communicationsfi
dc.programme.mcodeS-72fi
dc.rights.accesslevelopenAccess
dc.subject.keywordpropagation measurementen
dc.subject.keywordoutdooren
dc.subject.keywordTV white spaceen
dc.subject.keywordpath lossen
dc.subject.keywordOpenWrten
dc.subject.keywordempirical modelsen
dc.subject.keywordDlinken
dc.subject.keywordTV Banden
dc.subject.keywordISM Banden
dc.titleOutdoor Signal Strength Measurement at TV Band and ISM Band in Otaniemi Campusen
dc.typeG2 Pro gradu, diplomityöen
dc.type.okmG2 Pro gradu, diplomityö
dc.type.ontasotMaster's thesisen
dc.type.ontasotDiplomityöfi
dc.type.publicationmasterThesis
local.aalto.digifolderAalto_90818
local.aalto.idinssi48405
local.aalto.openaccessyes
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