search query: @keyword propagation / total: 7
reference: 1 / 7
« previous | next »
Author:Simola, Jarno
Title:Millimeter Wave Propagation Measurements and Modeling in Hospital Environments
Millimetriaaltojen etenemismittaukset ja -mallinnus sairaalaympäristöissä
Publication type:Master's thesis
Publication year:2010
Pages:47      Language:   eng
Department/School:Radiotieteen ja -tekniikan laitos
Main subject:Radiotekniikka   (S-26)
Supervisor:Vainikainen, Pertti
Instructor:Kyrö, Mikko
Electronic version URL: http://urn.fi/URN:NBN:fi:aalto-201203131550
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
Instructions

Reading digital theses in the closed network of the Aalto University Harald Herlin Learning Centre

In the closed network of Learning Centre you can read digital and digitized theses not available in the open network.

The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/

You can read theses on the Learning Centre customer computers, which are available on all floors.

Logging on to the customer computers

  • Aalto University staff members log on to the customer computer using the Aalto username and password.
  • Other customers log on using a shared username and password.

Opening a thesis

  • On the desktop of the customer computers, you will find an icon titled:

    Aalto Thesis Database

  • Click on the icon to search for and open the thesis you are looking for from Aaltodoc database. You can find the thesis file by clicking the link on the OEV or OEVS field.

Reading the thesis

  • You can either print the thesis or read it on the customer computer screen.
  • You cannot save the thesis file on a flash drive or email it.
  • You cannot copy text or images from the file.
  • You cannot edit the file.

Printing the thesis

  • You can print the thesis for your personal study or research use.
  • Aalto University students and staff members may print black-and-white prints on the PrintingPoint devices when using the computer with personal Aalto username and password. Color printing is possible using the printer u90203-psc3, which is located near the customer service. Color printing is subject to a charge to Aalto University students and staff members.
  • Other customers can use the printer u90203-psc3. All printing is subject to a charge to non-University members.
Location:P1 Ark Aalto  1395   | Archive
Keywords:propagation
channel model
path loss
power delay prole
radioaaltojen eteneminen
60 GHz
kanavamalli
etenemisvaimennus
tehoviiveproili
Abstract (eng): Applications of wireless technologies in medical treatments have been considered for realizing portable medical equipment and remote monitoring.
The 60 GHz band can theoretically offer very high data rates for such applications, but the propagation characteristics of hospital environments have not been studied.
Based on preliminary measurements in a shielded room, the propagation characteristics can be expected to be different compared to regular indoor environments.

As a part of a feasibility study of 60 GHz radio systems, propagation channel measurements were performed in two different hospital environments, an angiography room and an ultrasonic inspection room.
In this work, path loss and delay domain analysis were made based on the measurement data.
Obtained power delay profiles were used to develop delay domain channel models.

The path loss of both hospital environments was found to be similar to common indoor environments.
However, the delay domain characteristics of the two rooms turned out to be quite different from each other.
Based on this, different models were developed for the environments.
Abstract (fin): Langaton tiedonsiirto voi olla hyödyksi monissa lääketieteellisissä sovelluksissa, kuten kannettavissa hoitolaitteissa ja lääkärinhoidon etävalvonnassa. 60 GHz:n taajuusalue tarjoaa teoriassa erittäin nopeaa tiedonsiirtoa kyseisiin sovelluksiin, mutta tiedonsiirtokanavan ominaisuuksia ei ole toistaiseksi tutkittu sairaalaympäristössä.
Häiriösuojatussa huoneessa tehtyjen mittausten perusteella näiden ominaisuuksien voidaan olettaa poikkeavan tavallisista sisätiloista.

Osana 60 GHz:n tiedonsiirtojärjestelmien soveltuvuustutkimusta suoritettiin kanavamittauksia kahdessa erilaisessa sairaalaympäristössä, angiografiahuoneessa ja ultraäänitutkimushuoneessa.
Mittaustulosten perusteella analysoitiin ympäristöjen etenemisvaimennusta ja viivealueominaisuuksia.

Etenemisvaimennuksen todettiin olevan molemmissa huoneissa hyvin lähellä tavallisten sisätilojen arvoja.
Viivealueessa huoneiden siirtokanavat olivat kuitenkin hyvin erilaiset.
Angiografiahuoneessa monitie-eteneminen oli voimakkaampaa ja tehoviivepro_ilin muoto erilainen.
Tämän vuoksi molemmille ympäristöille kehitettiin oma kanavamalli.
ED:2010-10-15
INSSI record number: 41083
+ add basket
« previous | next »
INSSI