On the scalability of cognitive radio:: Assessing the commercial viability of secondary spectrum access
2013 (English)In: IEEE wireless communications, ISSN 1536-1284, E-ISSN 1558-0687, Vol. 20, no 2, 28-35 p.Article in journal (Refereed) Published
We report results from the recently finished QUASAR project, which has studied overall system aspects of cognitive radio technologies and has paid attention particularly to the economic viability of different use cases. We find that successful secondary sharing goes far beyond the detection of spectrum holes. Large-scale commercial success requires that secondary systems are scalable so that a large number of users can be served in an economically viable fashion. Our key finding is that secondary spectrum use is not an attractive method for most of the commercially interesting scenarios, from neither a business nor technical perspective. Perhaps somewhat surprisingly, the likely commercial "sweet spot" for secondary sharing in the lower frequency bands is short-range indoor communications. We also find that regulation does not currently present a significant barrier in Europe or the United States.
Place, publisher, year, edition, pages
2013. Vol. 20, no 2, 28-35 p.
IdentifiersURN: urn:nbn:se:kth:diva-123432DOI: 10.1109/MWC.2013.6507391ISI: 000318518300006ScopusID: 2-s2.0-84877745509OAI: oai:DiVA.org:kth-123432DiVA: diva2:626931
FunderEU, FP7, Seventh Framework Programme, INFSO-ICT-248303Wireless@kth
QC 201506262013-06-102013-06-102015-06-26Bibliographically approved