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A Color Vibration Method Robust to Interframe Difference for Embedding Imperceptible Markers in Videos
Kota Araki, Yuki Kakui, Ryotaro Tanaka, Changyo Han, Shogo Fukushima, Takeshi Naemura
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National borders transcended : the impact of geographical proximity on the growth of global innovation networks among cities in East Asia proximity on the growth of global innovation networks
Hwajin Lim, Changyo Han
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National borders transcended : the impact of geographical proximity on the growth of global innovation networks among cities in East Asia proximity on the growth of global innovation networks
BumpMarker: a 3D-printed tangible marker for simultaneous tagging, tracking, and weight measurement
This paper introduces BumpMarker: a 3D-printed tangible marker that can perform simultaneous tagging, position tracking, and weight …
Changyo Han, Takeshi Naemura
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Performance Improvement of Multi-IFoF-Based Mobile Fronthaul Using Dispersion-Induced Distortion Mitigation With IF Optimization
Nowadays, there have been many research works on multiple-intermediate-frequency-over-fiber (multi-IFoF)-based mobile fronthaul link to …
Changyo Han, Minkyu Sung, Seung-Hyun Cho, Hwan Seok Chung, Sun Me Kim, Jong Hyun Lee
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Clipping Distortion Suppression of Directly Modulated Multi-IF-over-Fiber Mobile Fronthaul Links Using Shunt Diode Predistorter
Herein, we demonstrate clipping distortion suppression of directly modulated multi‐IF‐over‐fiber links using a simple shunt diode …
Changyo Han, Seung-Hyun Cho, Minkyu Sung, Hwan Seok Chung, Jong Hyun Lee
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Demonstration of Mobile Fronthaul Test Bed Based on RoF Technology Supporting Two Frequency Assignments and 2✕2 MIMO Antennas
We demonstrate a next‐generation high‐capacity mobile fronthaul based on radio over fiber (RoF) technology, which links between a …
Seung-Hyun Cho, Changyo Han, Hwan Seok Chung, Jong Hyun Lee
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Improvement of the transmission performance in multi-IF-over-fiber mobile fronthaul by using tone-reservation technique
©2015 Optical Society of America. We demonstrate the improvement of the transmission performance based on tone-reservation technique in …
Minkyu Sung, Changyo Han, Seung-Hyun Cho, Hwan Seok Chung, Jong Hyun Lee
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Mode- and wavelength-division multiplexed transmission using all-fiber mode multiplexer based on mode selective couplers
We propose all-fiber mode multiplexer composed of two consecutive LP₁₁ mode selective couplers that allows for the multiplexing of LP₀₁ …
Sun Hyok Chang, Hwan Seok Chung, Roland Ryf, Nicolas K. Fontaine, Changyo Han, Kyung Jun Park, Kwangjoon Kim, Jyung Chan Lee, Jong Hyun Lee, Byoung Yoon Kim, Young Kie Kim
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