Education

PhD in Computer Science and Engineering

Sogang University | 2015 - 2025 (Expected)

  • Dissertation: Working in Progress
  • Advisor: Prof. Sungwook Kim

Bachelor of Science in Mathematics

Sogang University | 2010 - 2015

  • Double major: Computer Science and Engineering
  • Advisor: Prof. Sungho Park

Publications

Journal Papers

  1. Joonsu Ryu and Sungwook Kim, “Reputation-Based Opportunistic Routing Protocol Using Q-Learning for MANET Attacked by Malicious Nodes,” IEEE Access, Vol. 11, 2023, pp. 47701-47711. [link]

  2. Joonsu Ryu and Sungwook Kim, “Trust System- and Multiple Verification Technique-based Method for Detecting Wormhole Attacks in MANETs,” IEEE Access, Vol. 12, 2024, pp. 16266-16275. [link]

  3. Joonsu Ryu and Sungwook Kim, “Mitigating Jamming Attacks in Underwater Sensor Networks Using an M-Qubed-Based Opportunistic Routing Protocol”, Under Review

Conference Papers

  1. Joonsu Ryu and Sungwook Kim, “A Study on the Influential Maximization Problem on Real-Time Dynamic Social Networks.” Conference of the Korean Institute of Information Scientists and Engineers, December 2017, pp. 1200-1202. (Korean) [link]

  2. Joonsu Ryu and Sungwook Kim, “Finding the Influential Node set Using Reinforcement Learning in Social Networks.” Conference of the Institute of Electronics and Information Engineers, June 2018, pp. 1064-1065. (Korean) [link]

  3. Joonsu Ryu and Sungwook Kim, “Multi-hop Routing Method based on Reinforcement Learning for Efficient Data Offloading.” Conference of the Institute of Electronics and Information Engineers, August 2020. pp. 687-689. (Korean) [link]

  4. Joonsu Ryu and Sungwook Kim, “Energy Level based D2D Routing Algorithm By using the Reinforcement Learning Approach.” Conference of the Institute of Electronics and Information Engineers, June 2022, pp. 744-746. (Korean) [link]

  5. Joonsu Ryu and Sungwook Kim, “Detection of Wormhole Attacks in Mobile Ad-hoc Network Using Multi-Validation Techniques.” Conference of the Institute of Electronics and Information Engineers, June 2023, pp. 2038-2041. (Korean) [link]

Teaching Experience

Teaching Assistant

Sogang University | 2015.03 - 2019.02

  • Assisted in grading assignments and exams, held office hours to help students with questions
  • Courses: C programming, Data Structures, Design and Analysis of Algorithms, Computer Networks, etc.

Head Teaching Assistant

Sogang University | 2022.03 - 2023.08

  • Led and managed a team of teaching assistants, coordinated grading, and oversaw student support.

AI Program Mentor

Soongmoon High School | 2022.10 - 2022.11

  • Mentored high school students participating in an AI program.
  • Guided students in developing research plans based on their submitted project proposals.

Instructor

Sungshin Women’s University | 2023.09 - 2024.08 (Expected)

  • Designed and delivered lectures for the courses.
  • Courses: Programming Languages and Java Programming

Awards and Honors

  • Outstanding Paper Award, Conference of the Institute of Electronics and Information Engineers (IEIE), June 2018.
  • LG Electronics Paper Award for Outstanding Research, Conference of the Institute of Electronics and Information Engineers (IEIE), June 2022.

Languages

  • Korean (native)
  • English (intermediate)
  • Japanese (intermediate)