Change search
ReferencesLink to record
Permanent link

Direct link
Ytelse for multippel antenne teknikker i LTE
Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, Department of Electronics and Telecommunications.
2011 (Norwegian)MasteroppgaveStudent thesisAlternative title
Performance for multiple antenna techniques in LTE (English)
Abstract [no]

This thesis is about doing test runs at an LTE base station at Telenor at Fornebu. The tests are performed to find out how good the systems work, and specifically for this thesis to explore the possibilities of spectral bandwidth gain exploiting multiple antenna and spatial multiplexing. All tests were done by vehicle at Oksenøya outside Oslo. The tests were done at approximately between 20 and 40 kph. The main tests resulted in 16 test-files with combinations of 4 different physical antenna configurations and 4 different transmission modes, driving the route in both directions. Since Telenor's equipment at the moment only supports 2x2 MIMO, there was no testing of higher channel ranks than 2. The antenna configurations was combinations of co-polarity and cross-polarity and co-located and distance separated antennas. The interesting aspect of this thesis is to fin if it is possible to use co-located antennas only for 2x2 MIMO, 4x2 MIMO and 4x4 MIMO, which may result in large outcome savings when deploying LTE for commercial use. It was not expected to perform as good as a distance separated antenna configuration. The results was not concluding, but gave an indication to that the MIMO performance will suffer dramatically from this setup, and leaves the question of what will be the best solution. This is a question that will have to be answered by more test results.

Place, publisher, year, edition, pages
Institutt for elektronikk og telekommunikasjon , 2011. , 97 p.
Keyword [no]
ntnudaim:5868, MTEL elektronikk, Radioteknikk og kommunikasjon
URN: urn:nbn:no:ntnu:diva-14812Local ID: ntnudaim:5868OAI: diva2:464134
Available from: 2011-12-12 Created: 2011-12-12

Open Access in DiVA

fulltext(3437 kB)1017 downloads
File information
File name FULLTEXT01.pdfFile size 3437 kBChecksum SHA-512
Type fulltextMimetype application/pdf
cover(81 kB)26 downloads
File information
File name COVER01.pdfFile size 81 kBChecksum SHA-512
Type coverMimetype application/pdf

By organisation
Department of Electronics and Telecommunications

Search outside of DiVA

GoogleGoogle Scholar
Total: 1017 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 79 hits
ReferencesLink to record
Permanent link

Direct link