Feasibility demonstration of flexible Tx/Rx for spectrum defragmentation in elastic optical networks. - Hyeon Yeong Choi; Takehiro Tsuritani; Itsuro Morita (OFC/NFOEC, 2013)

A new multi-purpose optical transmitter for higher-order QAM generation. - Hyeon Yeong Choi; Takehiro Tsuritani; Itsuro Morita (OFC/NFOEC, 2013)

Demonstration of a dynamic transparent WSON employing flexible transmitter/receiver controlled by an OpenFlow/stateless PCE integrated control plane. - Lei Liu 050; Hyeon Yeong Choi; Ramon Casellas; Takehiro Tsuritani; Itsuro Morita; Ricardo Martinez 001; Raul Muñoz 001 (OFC/NFOEC, 2013)

Demonstration of a Dynamic Transparent Optical Network Employing Flexible Transmitters/Receivers Controlled by an OpenFlow-Stateless PCE Integrated Control Plane [Invited]. - Lei Liu 050; Hyeon Yeong Choi; Ramon Casellas; Takehiro Tsuritani; Itsuro Morita; Ricardo Martínez 001; Raul Muñoz 001 (JOCN, 2013)

A LTE wireless communication interface test for on-board oriented train control system field test. - Jong Hyen Baek; Gon Yop Kim; Doh Chul Yang; Hyeon Yeong Choi; Young Kyu Kim; Yong Ki Yoon (ICTC, 2014)

Design and Modeling of Hybrid Uniplanar Electromagnetic Bandgap Power Planes for Wide-Band Noise Suppression on Printed Circuit Boards. - Junho Joo; Hyeon Yeong Choi; Eakhwan Song (IEEE Access, 2020)