Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Weon-cheol Lee"'
Autor:
Sung-Soon Yhim, Weon-Cheol Lee
Publikováno v:
Journal of the Korea institute for structural maintenance and inspection. 17:1-12
This study presents the evaluations of seismic performance and displacement ductility for two types of RC columns: existing RC column without SFM (Super Flexibility Membrane) and CSF (RC columns strengthened with SFM). After they are analyzed by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86751e21679f32375e29aadaebf91cad
https://doi.org/10.11112/jksmi.2013.17.5.001
https://doi.org/10.11112/jksmi.2013.17.5.001
Publikováno v:
Digital Signal Processing. 16:846-854
In a digital intermediate frequency (IF) receiver, decimation is performed to reduce the computational complexity and cascaded integrated comb (CIC) filter is used together with the decimation as an anti-aliasing filter. However, the CIC filter gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fb55aaf22b9525194a060454f161705
https://doi.org/10.1016/j.dsp.2006.06.003
https://doi.org/10.1016/j.dsp.2006.06.003
Publikováno v:
IEICE Transactions on Communications. :4678-4681
This paper presents a new on-off beamforming algorithm to provide an optimal weight vector. The proposed algorithm is based on the eigen-space on-off algorithm for exploiting a diversity gain that is available in the signal environments of wide angle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1956a01012d7c093a7c8b8277920c04c
https://doi.org/10.1093/ietcom/e88-b.12.4678
https://doi.org/10.1093/ietcom/e88-b.12.4678
Publikováno v:
Wireless Personal Communications. 35:227-240
This paper addresses some essential problems that have to be taken into consideration in implementing the smart antenna base station (SABS) for downlink beamforming. In order to provide proper downlink beamforming as well as uplink beamforming, a pra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceb64950dcfcb55428772aaf6bdf781b
https://doi.org/10.1007/s11277-005-3493-2
https://doi.org/10.1007/s11277-005-3493-2
Publikováno v:
IEEE Transactions on Broadcasting. 44:488-496
This paper relates to the application method of channel state information (CSI) to the Viterbi (maximum likelihood) decoder in the digital terrestrial television broadcasting system. The proposed Viterbi decoder uses the CSI derived from the pilots i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60700d0161281e523ddfa5138869d854
https://doi.org/10.1109/11.735912
https://doi.org/10.1109/11.735912
Publikováno v:
IEEE Transactions on Consumer Electronics. 44:1150-1153
This paper is concerned about the demapping method using the pilots inserted in transmitter in COFDM (coded orthogonal frequency division multiplexing) system which is the standard transmission system of terrestrial digital TV in Europe. We have test
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c67795aa7544447cf9966f10564f057
https://doi.org/10.1109/30.713248
https://doi.org/10.1109/30.713248
Autor:
Seungwon Choi, Weon-cheol Lee
Publikováno v:
IEEE Communications Letters. 9:888-890
This paper presents an adaptive beamforming technique based on the eigen-space method for computing the optimal weight vector that does not degrade the receiving performance even in wide angle spread circumstances. By exploiting the diversity gain, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05e7e8507c6eb837f7f43c51e5af696e
https://doi.org/10.1109/lcomm.2005.10003
https://doi.org/10.1109/lcomm.2005.10003
Publikováno v:
IEEE Communications Letters. 9:514-516
The auxiliary pilot has been defined in the CDMA2000 IX standard for the purpose of providing an accurate channel estimation to each of mobile terminals during the downlink beamforming. In this letter, we first analyze the multipath signal environmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20896ed6f2299038a43c01f5b52fb2f5
https://doi.org/10.1109/lcomm.2005.1437355
https://doi.org/10.1109/lcomm.2005.1437355
Autor:
Seungheon Hyeon, Hwanseog Bahk, Weon-cheol Lee, Seungwon Choi, Cheolhoon Lee, Heung-Jae Im, Jonghun Kim
Publikováno v:
Scopus-Elsevier
This paper presents performance analysis of a smart antenna base station (SABS) that has been implemented for IS-2000 1X system. The SABS introduced in this paper includes all the subsystems required in a commercial base station such as array antenna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6d8302e1c91077bc67a9a37c1caebfb
https://doi.org/10.1109/vetecs.2003.1207609
https://doi.org/10.1109/vetecs.2003.1207609
Publikováno v:
Adaptive Antenna Arrays ISBN: 9783642057755
This paper presents performance analysis of a smart antenna base station (SABS) that has been implemented for CDMA2000 1X system. The SABS introduced in this paper supports all the channels defined in 3GPP2. The H/W structure and function of each mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76092324daf7de63b031d724b85f1f92
https://doi.org/10.1007/978-3-662-05592-2_34
https://doi.org/10.1007/978-3-662-05592-2_34
