Zobrazeno 1 - 10 of 30 pro vyhledávání: '"Byung-Lok Cho"'
1
Akademický článek
Measurement and Analysis of Local Average Power According to Averaging Length Changes of 3, 6, 10, and 17 GHz in an Indoor Corridor Environment
Autor: Seong-Hun Lee, Byung-Lok Cho
Publikováno v: International Journal of Antennas and Propagation, Vol 2023 (2023)
This study measures and analyzes the local average power for line-of-sight (LOS) and non-line-of-sight (NLOS) paths according to the averaging length in an indoor corridor environment. The indoor corridor comprises multiple offices, laboratory spaces
Externí odkaz: https://doaj.org/article/6f7fc389d53343f18e5c80b9dc94cd02
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2
Akademický článek
Comparison of 0.75–24-GHz Reach Distances and Ratios Using Propagation Path Loss Measurements from Urban and Rural Line-of-Sight Environments
Autor: Soon-Soo Oh, Jae-Won Choi, Dong-Woo Kim, Young-Chul Lee, Byung-Lok Cho
Publikováno v: Journal of Electromagnetic Engineering and Science, Vol 21, Iss 1, Pp 1-7 (2021)
In this paper, we present experimental transmittance data at 0.75, 1, 2, 3, 4.5, 6, 10, 18, and 24 GHz from urban and rural environments. All measurements were performed under line-of-sight (LoS) conditions. Reach distances were extracted using the m
Externí odkaz: https://doaj.org/article/f43aa780f78445d5a3c79554a823b67e
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3
Akademický článek
Impact of Window Penetration Loss on Building Entry Loss From 3.5 to 24 GHz
Autor: Young Chul Lee, Soon-Soo Oh, Chul Woo Byeon, Khairunnisa Aziding, Byung-Lok Cho
Publikováno v: IEEE Access, Vol 9, Pp 138571-138579 (2021)
We investigated the impact of window penetration loss (WinPL) on the frequency dependence of building entry loss (BEL) from 3.5 to 24 GHz. The WinPL characteristics of an ideal double-glazed glass and an actual double-glazed window were simulated and
Externí odkaz: https://doaj.org/article/aab0d11877774290ad5e9bc91e30d1cb
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5
Comparison of 0.75–24-GHz Reach Distances and Ratios Using Propagation Path Loss Measurements from Urban and Rural Line-of-Sight Environments
Autor: Dong-Woo Kim, Jaewon Choi, Soon-Soo Oh, Young-Chul Lee, Byung-Lok Cho
Publikováno v: Journal of Electromagnetic Engineering and Science, Vol 21, Iss 1, Pp 1-7 (2021)
In this paper, we present experimental transmittance data at 0.75, 1, 2, 3, 4.5, 6, 10, 18, and 24 GHz from urban and rural environments. All measurements were performed under line-of-sight (LoS) conditions. Reach distances were extracted using the m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0f543929f9d6995c08b8a543a35e33d
http://jees.kr/upload/pdf/jees-2021-21-1-1.pdf
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7
Development of Metallic Coil Identification System Based on RFID
Autor: Dae-Geun Ju, Byung-Lok Cho, Myunsik Kim, Eun-Jung Choi, Beobsung Song
Publikováno v: Radio Frequency Identification Fundamentals and Applications Design Methods and Solutions
Recently, RFID gains increasing attention, since RF signal can eliminates the need an optical line of sight and transmits relatively large amount of information from several tens of tags in real time (Finkenzeller, 2003) (Landt. 2001). Based on these
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88c437d1ecb5c1abfc1e484b26073a2d
http://www.intechopen.com/articles/show/title/development-of-metallic-coil-identification-system-based-on-rfid
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8
Path Loss Characteristics for Urban Street Canyon Environments from 0.75 to 24 GHz
Autor: Young-Chul Lee, Hwa-Choon Lee, Sung-Won Park, Il-Yong Lee, Jong-Hyuk Lim, Dae-Hwan Yoon, Byung-Lok Cho, Jae-Won Choi, Soon-Soo Oh
Publikováno v: VTC-Fall
This paper proposes path loss characteristics for urban high-rise environments based on 0.75, 1, 2, 3, 4.5, 6, 10, 18, and 24 GHz measurements. We conducted a measurement campaign using 10- and 2-m-high omnidirectional antennas for transmitting (Tx)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c2fc28cc11d88e42b9502c6443a3e9d
https://doi.org/10.1109/vtcfall.2018.8690718
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9
Alamouti MIMO-OFDM-based analysis in the vertical channel of the underwater communication
Autor: Byung-Lok Cho, Gi-Yoon Maeng
Publikováno v: Journal of the Korea Academia-Industrial cooperation Society. 16:5571-5578
In this paper, we analyzed Alamouti based the MIMO-OFDM system in an underwater vertical communication channels. These in consideration both the transmission loss the multipath loss which is suitable forunderwater environment are necessary method to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a46da1518b2c320c8bd63cabb827e9c
https://doi.org/10.5762/kais.2015.16.8.5571
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10
Performance analysis of a spectrally compliant ultra-wideband pulse design
Autor: Byung Lok Cho, K.P. Wallace, Zhi Ding, A.B. Parr
Publikováno v: IEEE Transactions on Wireless Communications. 4:2172-2181
We present a performance analysis of an ultra-wideband (UWB) system. The UWB system utilizes a new pulse design that made the performance analysis possible, since the new pulse not only has a short duration to reduce collision, but is also spectrally
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4842cf5952fa430c5f4089a15abb5847
https://doi.org/10.1109/twc.2005.853878
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