Search Results - "YunJe Oh"

High data rate multiple input multiple output (MIMO) optical wireless communications using white led lighting by Lubin Zeng, O'Brien, D., Hoa Minh, Faulkner, G., Kyungwoo Lee, Daekwang Jung, YunJe Oh, Eun Tae Won

“…Solid-state lighting is a rapidly growing area of research and applications, due to the reliability and predicted high efficiency of these devices. The white…”
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100-Mb/s NRZ Visible Light Communications Using a Postequalized White LED by Hoa Le Minh, O'Brien, D., Faulkner, G., Lubin Zeng, Kyungwoo Lee, Daekwang Jung, YunJe Oh, Eun Tae Won

“…This letter describes a high-speed visible light communications link that uses a white-light light-emitting diode (LED). Such devices have bandwidths of few…”
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High-Speed Visible Light Communications Using Multiple-Resonant Equalization by Hoa Le Minh, O'Brien, D., Faulkner, G., Lubin Zeng, Kyungwoo Lee, Daekwang Jung, YunJe Oh

“…White light-emitting diodes (LEDs) are becoming widespread in commercial lighting applications, and there are predictions that they will be in common use in…”
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Impact of dispersion, PMD, and PDL on the performance of spectrum-sliced incoherent light sources using gain-saturated semiconductor optical amplifiers by KIM, Hoon, KIM, Sangho, HWANG, Seongtaek, OH, Yunje

“…The effects of chromatic dispersion (CD), polarization-mode dispersion (PMD), and polarization-dependent loss (PDL) on the intensity noise suppression of…”
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Radio-Over-Fiber System for TDD-Based OFDMA Wireless Communication Systems by Hoon Kim, Hoon Kim, Jae Hun Cho, Jae Hun Cho, Sangho Kim, Sangho Kim, Ki-Uk Song, Ki-Uk Song, Hanlim Lee, Hanlim Lee, Jaehoon Lee, Jaehoon Lee, Byungjik Kim, Byungjik Kim, Yunje Oh, Yunje Oh, Jaekon Lee, Jaekon Lee, Seongtaek Hwang, Seongtaek Hwang

“…We report on a fiber-optic transport system for next-generation wireless-communication systems utilizing 4 times 4 multiple-input multiple-output (MIMO)…”
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Real-Time Frame-Layer H.264 Rate Control for Scene-Transition Video at Low Bit Rate by Lee, Changhyun, Jung, Yunho, Lee, Seongjoo, Oh, Yunje, Kim, Jaeseok

“…An abrupt scene-transition frame is one that is hardly correlated with the previous frames. In that case, because an intra-coded frame has less distortion than…”
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A novel way to improve the dispersion-limited transmission distance of electroabsorption modulated lasers by Hoon Kim, Hoon Kim, Sung Kee Kim, Sung Kee Kim, Hanlim Lee, Hanlim Lee, Seongtaek Hwang, Seongtaek Hwang, Yunje Oh, Yunje Oh

“…We propose and demonstrate a way to improve the dispersion-limited reach of electroabsorption modulated lasers (EMLs). We generate continuous-phase…”
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A Novel Method for Providing Precise Time Synchronization in a Distributed Control System Using Boundary Clock by Jae Hun Cho, Jae Hun Cho, Hoon Kim, Hoon Kim, Sihai Wang, Sihai Wang, Jaehoon Lee, Jaehoon Lee, Hanlim Lee, Hanlim Lee, Seongtaek Hwang, Seongtaek Hwang, Sungdae Cho, Sungdae Cho, Yunje Oh, Yunje Oh, Tae-Jin Lee, Tae-Jin Lee

“…We propose and demonstrate a method to provide precise time synchronization in distributed control systems using a boundary clock scheme. The major drawback of…”
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Hybrid WDM/TDM-PON with wavelength-selection-free transmitters by Dong Jae Shin, Dae Kwang Jung, Hong Seok Shin, Jin Wook Kwon, Seongtaek Hwang, Yunje Oh, Shim, C.

“…A hybrid wavelength-division-multiplexed/time-division-multiplexed passive optical network serving 128 subscribers with wavelength-selection-free transmitters…”
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80 Mbit/s Visible Light Communications using pre-equalized white LED by Hoa Le Minh, O'Brien, D., Faulkner, G., Zeng, L., Kyungwoo Lee, Daekwang Jung, YunJe Oh

“…This paper reports an 80 Mbit/s OOK-NRZ visible light communications experimental link using a single pre-equalized 45-MHz bandwidth white LED…”
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Error Concealment of H.264/AVC Video Frames for Mobile Video Broadcasting by Song, Kwanwoong, Chung, Taeyoung, Kim, Yongdeok, Oh, Yunje, Kim, Chang-Su

“…An efficient frame error concealment (EC) algorithm for H.264 video is proposed in this work. The proposed algorithm temporally conceals a lost frame by…”
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Cost-effective optical chirped duobinary transmitter using an electroabsorption modulated laser by Hanlim Lee, Hoon Kim, Jaehoon Lee, Sung Kee Kim, Gyuwoong Lee, Seongtaek Hwang, Yunje Oh, Jichai Jeong, Shim, C.

“…We propose and demonstrate a cost-effective way to implement a 10-Gb/s chirped duobinary (CDB) transmitter using an electroabsorption modulated laser (EML)…”
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1.2Gb/s 3.9pJ/b mono-phase pulse-modulation inductive-coupling transceiver for mm-range board-to-board communication by Hyunwoo Cho, Unsoo Ha, Taehwan Roh, Dongchurl Kim, Jeahyuck Lee, Yunje Oh, Hoi-Jun Yoo

“…Recently, short distance board-to-board interconnections are widely employed in portable systems and wearable devices to accommodate many components into an…”
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Performance Evaluation of Electroabsorption Modulators as Optical Transceivers in Radio-Over-Fiber Systems By FDTD Method by Hur, S., Seungki Nam, Hanlim Lee, Seongtaek Hwang, Yunje Oh, Jichai Jeong

“…In this paper, the limitations of the performance of electroabsorption modulators (EAMs) as optical transceivers in passive picocell systems by using the…”
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Optically preamplified receiver performance due to VSB filtering for 40-Gb/s optical signals modulated with various formats by LEE, Jaehoon, KIM, Seongha, KIM, Yonghoon, OH, Yunje, HWANG, Seongtaek, JEONG, Jichai

“…Optically preamplified receiver performance according to the vestigial sideband (VSB) filtering has been numerically investigated for 40-Gb/s optical signals…”
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Hybrid WDM/TDM-PON with wavelength-selection-free transmitters by Dong Jae Shin, Dong Jae Shin, Dae Kwang Jung, Dae Kwang Jung, Hong Seok Shin, Hong Seok Shin, Jin Wook Kwon, Jin Wook Kwon, Seongtaek Hwang, Seongtaek Hwang, Yunje Oh, Yunje Oh, Shim, C

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On the use of 2.5-Gb/s Mach-Zehnder modulators to generate 10-Gb/s optical duobinary signals by Kim, H., Lee, G., Lee, H., Kim, S.K., Kang, I., Hwang, S., Oh, Y.

“…We demonstrate the generation of 10-Gb/s optical duobinary signals from 2.5-Gb/s Mach-Zehnder (MZ) modulators without using duobinary encoders. The absence of…”
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A gain-clamped SOA with distributed Bragg reflectors fabricated under both ends of active waveguide with different lengths by Kim, H., Lee, J., Yun, I., Kim, S., Shin, H., Hwang, S., Oh, Y., Shim, C.

“…We demonstrate a gain-clamped semiconductor optical amplifier (GC-SOA) which has gratings under both end regions of an active waveguide. Two gratings of the…”
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1-fiber WDM self-healing ring with bidirectional optical add/drop multiplexers by Younghun Joo, Gyuwoong Lee, Raekyoung Kim, Sehong Park, Kwanwoong Song, Koh, J., Seongtaek Hwang, Yunje Oh, Shim, C.

“…We propose a 1-fiber bidirectional WDM self-healing ring that has bidirectional optical add/drop multiplexers. A simple fault detection method is proposed, and…”
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Real-Time H.264 Rate Control for Scene-Changed Video at Low Bit Rate by Changhyun Lee, Seongjoo Lee, Yunje Oh, Jaeseok Kim

“…Because a scene-changed picture is negatively correlated to the previous one, it breaks up rate control flow of H.264 and results in poor performance. When bit…”
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