liu.seSök publikationer i DiVA
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Contributions to Reconfigurable Filter Banks and Transmultiplexers
Linköpings universitet, Institutionen för systemteknik, Elektroniksystem. Linköpings universitet, Tekniska högskolan.
2010 (Engelska)Doktorsavhandling, monografi (Övrigt vetenskapligt)
Abstract [en]

A current focus among communication engineers is to design flexible radio systems to handle services among different telecommunication standards. Thus, lowcost multimode terminals will be crucial building blocks for future generations of multimode communications. Here,  different bandwidths, from different telecommunication standards, must be supported. This can be done using multimode transmultiplexers (TMUXs) which allow different users to share a common channel in a time-varying manner. These TMUXs allow bandwidth-on-demand. Each user occupies a specific portion of the channel whose location and width may vary with time.

Another focus among communication engineers is to provide various wideband services accessible to everybody everywhere. Here, satellites with high-gain spot beam antennas, on-board signal processing, and switching will be a major complementary part of future digital communication systems. Satellites provide a global coverage and customers only need to install a satellite terminal and subscribe to the service. Efficient utilization of the available limited frequency spectrum, calls for on-board signal processing to perform flexible frequency-band reallocation (FFBR).

This thesis outlines the design and realization of reconfigurable TMUX and FFBR structures which allow dynamic communication scenarios with simple software reconfigurations. In both structures, the system parameters are determined in advance. For these parameters, the required filter design problems are solved only once. Dynamic communications, with users having different time-varying bandwidths, are then supported by adjusting some multipliers, commutators, or a channel switch. These adjustments do not require hardware changes and can be performed online. However, the filter design problem is solved offline. The thesis provides various illustrative examples and it also discusses possible applications of the proposed structures in the context of other communication scenarios, e.g., cognitive radios.

Ort, förlag, år, upplaga, sidor
Linköping: Linköping University Electronic Press , 2010. , s. 150
Serie
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1344
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
URN: urn:nbn:se:liu:diva-60929ISBN: 978-91-7393-296-7 (tryckt)OAI: oai:DiVA.org:liu-60929DiVA, id: diva2:359924
Disputation
2010-12-10, Visionen, B-Huset, Campus Valla, Linköpings universitet, Linköping, 13:15 (Engelska)
Opponent
Handledare
Tillgänglig från: 2010-12-30 Skapad: 2010-11-01 Senast uppdaterad: 2011-03-28Bibliografiskt granskad

Open Access i DiVA

Contributions to Reconfigurable Filter Banksand Transmultiplexers(6423 kB)1767 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 6423 kBChecksumma SHA-512
3736c3d0c4c862540aa92a69198210a718a188f9cf2ccef7a7ab71ba73da9c152ac2d95b3118d4d925f5799c94099b7262717970b0c151042ea7b43f64bdac30
Typ fulltextMimetyp application/pdf
Cover(48 kB)70 nedladdningar
Filinformation
Filnamn COVER01.pdfFilstorlek 48 kBChecksumma SHA-512
26bad8b6480db50e8cbacc46988405e73223e042fd337dedfa1512582ab6c2df7c3ced6b6207bbe0e28baa1afe16026f4baef30451c4a3aa4119d82b58b010f7
Typ coverMimetyp application/pdf

Personposter BETA

Eghbali, Amir

Sök vidare i DiVA

Av författaren/redaktören
Eghbali, Amir
Av organisationen
ElektroniksystemTekniska högskolan
Teknik och teknologier

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 1767 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

isbn
urn-nbn

Altmetricpoäng

isbn
urn-nbn
Totalt: 1052 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf