Experience

Korea Maritime & Ocean University

• South Korea
• Higher Education
• 1 - 100 Employee

• Assistant Professor

  • Apr 2022 - Present



Imperial College London

• Research Services
• 700 & Above Employee

• Postdoctoral Research Associate

  • Apr 2020 - May 2022

  - Rate splitting multiple access (RSMA) research Implementation using software-defined radio (SDR) and performance evaluation (NI USRP, LabView). Implementation and modification of 802.11 to apply RSMA. Channel coding implementations (LDPC, Polar code) - Wireless Power Transfer (WPT) / Simultaneous Wireless Information and Power Transfer (SWIPT) Waveform design and validation (Modelling, Optimization, Simulation using MATLAB, CVX) Channel state information (CSI) estimation, Low-complex CSI feedback system implementation using embedded sensor and communication mote (zolertia, Zigbee) Energy receiver design and validation (Circuit design, layout, fabrication, evaluation using OrCAD, SPICE, ADS, Network analyzer, Spectrum analyzer) Novel Modulation design for SWIPT (pulse-position modulation, OFDM with limited phase angle, OOK for WPT, Leaning based modulation design) - Intelligent Reflectic Surface (IRS), Human activity detection using Wi-Fi, Joint Radar and communications. Show less



Samsung Electronics

• South Korea
• Computers and Electronics Manufacturing
• 700 & Above Employee

• Engineer

  • Feb 2008 - Jul 2014

  • Wireless system design, prototype, validation. →Mobile phone (Galaxy S/Note series) hardware design and development. →Wireless and RF blocks (Modem/Transceiver/Front end modules) design layout, matching, testing →GSM/3GPP(UMTS/LTE etc.), Wi-Fi, BLE • Wireless system (especially Mobile phone) power architecture design. →Power management system block design and layout →Power consumption profiling and analysis, power management scenario design and apply, e.g., AP performance throttling →Battery Charging, ESD protection circuit design • Application processor and relevant circuits design. • Display/Touch screen and Sensors implementation. →Super AMOLED” (On Cell Touch Screen Display) and “Super Clear LCD” (laminating LCD display and touch screen) • Mobile phone regulatory approval works. →Documentation and experiments for R&TTE, PTCRB, FCC part 15 and CTIA approvals Show less



Daewoo Engineering & Construction Co.,Ltd.

• South Korea
• Construction
• 700 & Above Employee

• Intern

  • Jun 2007 - Dec 2007

  Intern Engineer in Boryung Power Plant Construction Site • Power Plant internal communication network and fire detecting & alarm system architecture design and construction • Managing cooperative companies (network equipment suppliers, installing companies) Intern Engineer in Boryung Power Plant Construction Site • Power Plant internal communication network and fire detecting & alarm system architecture design and construction • Managing cooperative companies (network equipment suppliers, installing companies)



Republic of Korea Air Force

• Defense and Space Manufacturing
• 200 - 300 Employee

• Sergeant

  • Feb 2002 - Jul 2004

  • Weather Surveillance Radar monitoring and maintenance. • Automatic Weather System (that acquires weather data such as temperature, humidity, speed of wind etc.) maintenance. • Weather Surveillance Radar monitoring and maintenance. • Automatic Weather System (that acquires weather data such as temperature, humidity, speed of wind etc.) maintenance.