Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김동우 | - |
dc.date.accessioned | 2019-08-22T07:41:55Z | - |
dc.date.available | 2019-08-22T07:41:55Z | - |
dc.date.issued | 2006-12 | - |
dc.identifier.citation | IEEE TRANSACTIONS ON COMMUNICATIONS, v. 54, No. 12, Page. 2199-2211 | en_US |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.issn | 1558-0857 | - |
dc.identifier.uri | https://ieeexplore.ieee.org/document/4026724 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/108984 | - |
dc.description.abstract | In order to improve the performance of opportunistic beamforming in Ricean channels, we propose an improved opportunistic beamforming scheme which forms beams intelligently to the users. First, a new concept of the generalized Ricean distribution is introduced. On the basis of this theory, we propose a maximum-likelihood (ML) estimator of the directions of arrival of the users, and we derive the Cramer-Rao lower bound to evaluate the performance of the ML estimator. Furthermore, the generalized Ricean K-factors are estimated by a moment-based method. With the same pilot overhead in the downlink and with the same feedback overhead in the uplink, the improved scheme considerably outperforms conventional opportunistic beamforming. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | en_US |
dc.subject | Cramer-Rao lower bound (CRLB) | en_US |
dc.subject | direction of arrival (DOA) | en_US |
dc.subject | multiuser diversity | en_US |
dc.subject | opportunistic beamforming | en_US |
dc.title | Improved opportunistic beamforming in Ricean channels | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1109/TCOMM.2006.884851 | - |
dc.relation.journal | IEEE TRANSACTIONS ON COMMUNICATIONS | - |
dc.contributor.googleauthor | Kim, Il-Min | - |
dc.contributor.googleauthor | Yi, Zhihang | - |
dc.contributor.googleauthor | Kim, Dongwoo | - |
dc.contributor.googleauthor | Chung, Wonsuk | - |
dc.relation.code | 2009203855 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DIVISION OF ELECTRICAL ENGINEERING | - |
dc.identifier.pid | dkim | - |
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