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Dynamic Single Frequency Networks
KTH, Superseded Departments, Signals, Sensors and Systems.
2001 (English)In: IEEE Journal on Selected Areas in Communications, ISSN 0733-8716, E-ISSN 1558-0008, Vol. 19, no 10, 1905-1914 p.Article in journal (Refereed) Published
Abstract [en]

Wireless asymmetric Internet access with a downlink peak bit rate of 10 to 30 Mb/s can be achieved by using the terrestrial digital video broadcasting system (DVB-T) as a supplemental downlink together with today's cellular systems. This paper is a study of dynamic radio resource management on a packet-by-packet basis for this broadband downlink. The dynamic single frequency networks (DSFN) scheme is evaluated. It exploits the macrodiversity capability of the OFDM modulation scheme. The transmitters are dynamically divided into groups of transmitters that send the same information at the same channel frequency simultaneously. The fairly shared spectrum efficiency (FSSE), in bits per second per Hertz per site, which is a combined measurement of maximum throughput and fairness, is evaluated for best-effort traffic. DSFN improves the FSSE by 100% to 370%, for a certain set of test cases, in comparison to the dynamic packet assignment (DPA) scheme, which combines packet scheduling with dynamic channel assignment (DCA).

Place, publisher, year, edition, pages
New York: IEEE , 2001. Vol. 19, no 10, 1905-1914 p.
National Category
Computer and Information Science
Research subject
URN: urn:nbn:se:kth:diva-28027DOI: 10.1109/49.957306ISI: 000171610700008OAI: diva2:383819
QC 20110113Available from: 2011-01-06 Created: 2011-01-06 Last updated: 2011-01-13Bibliographically approved

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