Search Results - "Chan-Ho Choi"

Full-rate cooperative communications with spatial diversity for half-duplex uplink relay channels by KWON, Ui-Kun, CHOI, Chan-Ho, IM, Gi-Hong

“…This paper proposes a full-rate cooperative communication technique with spatial diversity for single-carrier transmissions. In order to achieve both the…”
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MIMO-OFDM with insufficient cyclic prefix by LIM, Jong-Bu, CHOI, Chan-Ho, IM, Gi-Hong

“…For orthogonal frequency division multiplexing (OFDM), cyclic prefix (CP) should be longer than the length of channel impulse response, resulting in a loss of…”
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Iterative Multiuser Detection for Single-Carrier Modulation with Frequency-Domain Equalization by LIM, Jong-Bu, CHOI, Chan-Ho, YUNE, Tae-Won, IM, Gi-Hong

“…In this letter, we propose a new multiuser detection scheme for single-carrier modulation with frequency-domain equalization (SC-FDE). We first present…”
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Unique-word-based single carrier system with decision feedback equalization for space-time block coded transmissions by CHOI, Chan-Ho, LIM, Jong-Bu, IM, Gi-Hong

“…This letter proposes a unique-word-based single-carrier (UW-SC) system with frequency-domain decision feedback equalization (FD-DFE) for space-time block coded…”
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Spectral Efficient Cooperative Diversity Technique with Multi-Layered Modulation by CHOI, Chan-Ho, KWON, Ui-Kun, KIM, Young-Jin, IM, Gi-Hong

“…This paper proposes a spectral efficient cooperative diversity technique with multi-layered modulation for high data rate transmissions. The proposed system…”
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Spectral Efficient Multiuser Technique with Channel-Dependent Resource Allocation Schemes by Chan-Ho Choi, Hyoung-Jin Lim, Tae-Kyoung Kim, Gi-Hong Im, Lawrence, Victor B.

“…This paper proposes a spectral efficient multiuser scheme for single-carrier transmission. In the proposed scheme, a combination (hybrid) of localized and…”
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Bit-Interleaved Coded Transmission with Multilevel Modulation for Non-Orthogonal Cooperative Systems by CHOI, Chan-Ho, KIM, Young-Jin, IM, Gi-Hong

“…This paper proposes a bit-interleaved coded multilevel modulation for non-orthogonal cooperative transmissions. The proposed system encodes and interleaves…”
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Bit-interleaved coded multilevel modulation for single-carrier frequency-domain equalization by CHOI, Chan-Ho, IM, Gi-Hong

“…This paper proposes a bit-interleaved coded multilevel modulation for single-carrier frequency-domain equalization (SC-FDE). In the proposed system, multiple…”
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Iterative Multiuser Detection for Single-Carrier Transmission With SFBC by Lim, Jong-Bu, Choi, Chan-Ho, Lim, Hyoung-Jin, Im, Gi-Hong

“…In this letter, we propose a new multiuser detection scheme for a space-frequency block code (SFBC) single-carrier modulation with frequency-domain…”
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Macro geometry optimization of a helical gear pair for mass, efficiency, and transmission error by Kim, Su-chul, Moon, Sang-gon, Sohn, Jong-hyeon, Park, Young-jun, Choi, Chan-ho, Lee, Geun-ho

“…•Macro geometry of a helical gear pair was optimized.•The objective functions used were gear mass, efficiency, and transmission error.•All three exhibited a…”
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User Scheduling and Adaptive Multilevel Modulation for SC-FDMA with Iterative Multiuser Detection by KIM, Tae-Kyoung, CHOI, Chan-Ho, LIM, Hyoung-Jin, IM, Gi-Hong

“…This letter investigates the problem of user selection with adaptive multilevel modulation for a single-carrier frequency division multiple access system with…”
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Feasibility Study on Automatic Interpretation of Radiation Dose Using Deep Learning Technique for Dicentric Chromosome Assay by Jang, Seungsoo, Shin, Sung-Gyun, Lee, Min-Jae, Han, Sangsoo, Choi, Chan-Ho, Kim, Sungkyum, Cho, Woo-Sung, Kim, Song-Hyun, Kang, Yeong-Rok, Jo, Wolsoon, Jeong, Sookyung, Oh, Sujung

“…The interpretation of radiation dose is an important procedure for both radiological operators and persons who are exposed to background or artificial…”
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Structural defects in a nanomesh of bulk MoS2 using an anodic aluminum oxide template for photoluminescence efficiency enhancement by Kim, TaeWan, Kim, DongHwan, Choi, Chan Ho, Joung, DaeHwa, Park, JongHoo, Shin, Jae Cheol, Kang, Sang-Woo

“…Two-dimensional (2D) materials beyond graphene have attracted considerable interest because of the zero bandgap drawbacks of graphene. Transition metal…”
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Space-Time Block Coded Transmission with Phase Feedback for Two-User MIMO-MAC by Young-Jin Kim, Chan-Ho Choi, Gi-Hong Im

“…This paper proposes a space-time block coded (STBC) transmission with phase feedback for two-user multi-input multi-output multiple access channels (MIMO-MAC)…”
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EDISON Nanophysics: Web-Based e-Learning Platform for Education and Research in Nanoscience by Jeon, Inho, Choi, Chan-Ho, Seo, Jerry H., Joe, Youngsik, Cho, Kumwon, Ryu, Hoon

“…We have developed a web-based e-Learning service for education and research in nanoscience areas. Being named as EDISON (EDucation-research Integration through…”
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Electrical and optical properties of core-shell InAs-InAs y P 1-y nanowires by Choi, Chan Ho, Kim, Hee Dae, Lee, Rochelle, Shin, Jae Cheol, Kim, Doo Gun, Kim, Jong Su

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Aerosol-assisted rapid synthesis of SnS-C composite microspheres as anode material for Na-ion batteries by Choi, Seung Ho, Kang, Yun Chan

“…SnS-C composite powders were prepared through one-pot spray pyrolysis for use as anode materials for Na-ion batteries. C microspheres with uniformly attached…”
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Electrical and optical properties of core-shell InAs-InAsyP1-y nanowires by Choi, Chan Ho, Kim, Hee Dae, Lee, Rochelle, Shin, Jae Cheol, Kim, Doo Gun, Kim, Jong Su

“…Although III-V semiconductor nanowires are attractive building blocks for future nanoscale optoelectronic applications, their optical and electrical properties…”
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Reduced porosity in metal-assisted chemical etching of vertical Si nanowire arrays by an induced magnetic field by Yun, Seokhun, Choi, Chan Ho, Patil, Dipali S., Kim, Doo Gun, Lee, Taikjin, Song, Gwang Yeom, Heo, Jaeyeong, Shin, Jae Cheol

“…High aspect ratio silicon nanowires (Si NWs) are produced by metal‐assisted chemical etching (MacEtch) combined with a magnetic field. The vertically applied…”
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Bit-Interleaved Coded Transmission with Multilevel Modulation for MIMO-OFDM Systems by Chan-Ho Choi, Gi-Hong Im

“…This paper proposes a bit-interleaved coded transmission with multilevel modulation for multiple-input multiple-output orthogonal frequency-division…”
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