DC Field | Value | Language |
---|---|---|
dc.contributor.author | Suh, Changho | ko |
dc.contributor.author | Ho, Minnie | ko |
dc.contributor.author | Tse, David N. C. | ko |
dc.date.accessioned | 2013-03-12T22:31:46Z | - |
dc.date.available | 2013-03-12T22:31:46Z | - |
dc.date.created | 2013-02-12 | - |
dc.date.created | 2013-02-12 | - |
dc.date.created | 2013-02-12 | - |
dc.date.issued | 2011-09 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON COMMUNICATIONS, v.59, no.9, pp.2616 - 2626 | - |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.uri | http://hdl.handle.net/10203/103737 | - |
dc.description.abstract | We develop an interference alignment (IA) technique for a downlink cellular system. In the uplink, IA schemes need channel-state-information exchange across base-stations of different cells, but our downlink IA technique requires feedback only within a cell. As a result, the proposed scheme can be implemented with a few changes to an existing cellular system where the feedback mechanism (within a cell) is already being considered for supporting multi-user MIMO. Not only is our proposed scheme implementable with little effort, it can in fact provide substantial gain especially when interference from a dominant interferer is significantly stronger than the remaining interference: it is shown that in the two-isolated cell layout, our scheme provides four-fold gain in throughput performance over a standard multi-user MIMO technique. We also show through simulations that our technique provides respectable gain under a more realistic scenario: it gives approximately 28% gain for a 19 hexagonal wrap-around-cell layout. Furthermore, we show that our scheme has the potential to provide substantial gain for macro-pico cellular networks where pico-users can be significantly interfered with by the nearby macro-BS. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Downlink interference alignment | - |
dc.type | Article | - |
dc.identifier.wosid | 000295013200031 | - |
dc.identifier.scopusid | 2-s2.0-80052932190 | - |
dc.type.rims | ART | - |
dc.citation.volume | 59 | - |
dc.citation.issue | 9 | - |
dc.citation.beginningpage | 2616 | - |
dc.citation.endingpage | 2626 | - |
dc.citation.publicationname | IEEE TRANSACTIONS ON COMMUNICATIONS | - |
dc.identifier.doi | 10.1109/TCOMM.2011.070511.100313 | - |
dc.contributor.localauthor | Suh, Changho | - |
dc.contributor.nonIdAuthor | Ho, Minnie | - |
dc.contributor.nonIdAuthor | Tse, David N. C. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Downlink | - |
dc.subject.keywordAuthor | interference alignment | - |
dc.subject.keywordAuthor | macro-pico cellular networks | - |
dc.subject.keywordAuthor | multi-user MIMO | - |
dc.subject.keywordPlus | CHANNELS | - |
dc.subject.keywordPlus | DUALITY | - |
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