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Packet-by-packet Radio Resource Management by means of Dynamic Single Frequency Networks: The 2000 International Conference on Broadband Wireless Access Systems (WAS'00), San Fransisco, U.S.A., December 4-6, 2000
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (MUCOM)ORCID iD: 0000-0003-0925-5678
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (MUCOM)
Responsible organisation
2000 (English)Conference paper, Published paper (Other academic)
Abstract [en]

By combining a cellular system with the terrestrial digital video broadcasting system (DVB-T), wide-area asymmetric Internet access can be achieved, with a downlink peak bit rate of 10-20Mbps. In this paper, we study dynamic resource management on a packet-by-packet basis for this broadband downlink. A model for best-effort traffic is proposed, which simplifies the evaluation of maximum throughput and fairness. Dynamic Single Frequency Networks (DSFN) are evaluated, which exploits the macrodiversity capability of the OFDM modulation scheme. The transmitters are divided into single frequency networks (SFNs), i.e. groups of transmitters that send the same information at the same channel frequency simultaneously. An algorithm changes the SFN grouping from timeslot to timeslot, and schedules the packets. DSFN is a way of introducing timeslots and Dynamic Channel Allocation into DVB-T, without keying of the transmitter power. Thus, receiver and transmitter circuits existing on the market today can be used, and only software modifications are required. A spectrum efficiency of 0.45 bit/s/Hz/site is achieved with omni-directional antennas under certain conditions. This is a capacity improvement of 170% in comparison to a Fixed Channel Allocation solution with static handover.

Place, publisher, year, edition, pages
2000.
Keywords [en]
fairness, best-effort traffic, spectrum efficiency, scheduling, OFDM, macro-diversity, SFN, DSFN
National Category
Computer Sciences Telecommunications
Identifiers
URN: urn:nbn:se:miun:diva-1526Local ID: 816OAI: oai:DiVA.org:miun-1526DiVA, id: diva2:26558
Available from: 2009-12-11 Created: 2009-12-04 Last updated: 2018-01-12Bibliographically approved

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Eriksson, MagnusXu, Youzhi

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf