DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ban, Tae Won | ko |
dc.contributor.author | Choi, Wan | ko |
dc.contributor.author | Jung, Bang Chul | ko |
dc.contributor.author | Sung, Dan Keun | ko |
dc.date.accessioned | 2013-03-12T12:55:29Z | - |
dc.date.available | 2013-03-12T12:55:29Z | - |
dc.date.created | 2012-07-08 | - |
dc.date.created | 2012-07-08 | - |
dc.date.created | 2012-07-08 | - |
dc.date.issued | 2009-01 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, v.8, no.1, pp.102 - 106 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | http://hdl.handle.net/10203/102391 | - |
dc.description.abstract | We investigate the effects of multi-user diversity in a spectrum sharing system where secondary users restrictively utilize a spectrum licensed to primary users only if interference perceived at primary users is regulated below a predetermined level. This interference regulation affects the characteristics of multiuser diversity gains previously known in non-spectrum sharing systems. Our numerical and analytical results show that the multiuser diversity gain in a spectrum sharing system increases differently according to conditions given by the transmit power of secondary users, P, and a predetermined interference temperature, Q - if P is sufficiently larger than Q, the multiuser diversity gain in terms of capacity scales like log(2) (W (N(s))) similarly to a previously known scaling law in the non-spectrum sharing systems, where W(.) and N(s) denote a Lambert W function and the number of secondary transmitters, respectively. However, the scaling law of multiuser diversity gain becomes log(2)(N(s)) as P becomes sufficiently larger such that P >> QN(s). | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Multi-User Diversity in a Spectrum Sharing System | - |
dc.type | Article | - |
dc.identifier.wosid | 000262562900019 | - |
dc.identifier.scopusid | 2-s2.0-61349156868 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 102 | - |
dc.citation.endingpage | 106 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | - |
dc.identifier.doi | 10.1109/T-WC.2009.080326 | - |
dc.contributor.localauthor | Choi, Wan | - |
dc.contributor.localauthor | Sung, Dan Keun | - |
dc.contributor.nonIdAuthor | Ban, Tae Won | - |
dc.contributor.nonIdAuthor | Jung, Bang Chul | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Spectrum sharing | - |
dc.subject.keywordAuthor | cognitive radio | - |
dc.subject.keywordAuthor | multiuser diversity | - |
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