Heejun Roh's Official Homepage

Heejun Roh
Assistant Professor (March 2019 - present)
Network Research Lab.
Future Network Center
Cyber Security Major, Division of Applied Mathematical Sciences
College of Science & Technology
Korea University Sejong Campus
Sejong City, Republic of Korea

Academic Advisor in M.E. and Ph. D. Courses: Professor Wonjun Lee (Korea University, Seoul, Republic of Korea)

Our Academic Genealogy

Academic Backgrounds

Ph.D. in Computer Science and Engineering, Graduate School, Korea University, Seoul, Republic of Korea (Mar. 2011 - Feb. 2017)
- Dissertation Title: Design and Optimization of Intermittently Networked Systems
- Overall GPA: 4.07/4.50
M.E. in Computer Science and Engineering, Graduate School, Korea University, Seoul, Republic of Korea (Mar. 2009 - Feb. 2011)
- Dissertation Title: Delay Minimization Schemes of Tree-based Neighbor Discovery in Mobile Robot Networks
- Overall GPA: 4.22/4.50
B.S. (Hons.) in Computer Science and Engineering, College of Information and Communications, Korea University, Seoul, Republic of Korea (Mar. 2005 - Feb. 2009)
- Overall GPA: 3.90/4.50; Note: His B.S. is called "공학학사" (B.E.) in Korean
B.S. in Mathematics (Double Major), College of Science, Korea University, Seoul, Republic of Korea (Mar. 2005 - Feb. 2009)

Positions Held

Assistant Professor, Cyber Security Major, Division of Applied Mathematical Sciences, College of Science & Technology, Korea University Sejong Campus, Sejong City, Republic of Korea (March 2019 - present)
Research Professor, Future Network Center, Korea University, Seoul, Republic of Korea (March 2017 - Feburary 2019)

Research Interests

Security and Privacy in Wirelsss and Mobile Networks
RF-powered Computing and Networking
Resource Allocation and Architectural Design in Cloud Data Centers
Economic Issues in Computer Networks
Cooperative Networking and Cognitive Radio Networks

Publications

International Journal Publications
- C. Shao, H. Park, H. Roh, W. Lee, "DOTA: Physical-Layer Decomposing and Threading for ZigBee/Wi-Fi Co-Transmission," IEEE Wireless Communications Letters, Vol. 8, No. 1, pp. 133-136, February 2019. (SCI 2017 I/F: 3.096; Top 27.58% Impact Factor in Telecommunications Category)
- C. Shao, H. Roh, and W. Lee, "Next-Generation RF-Powered Networks for Internet of Things: Architecture and Research Perspectives," Journal of Network and Computer Applications (JNCA), Vol. 123, No. 1, pp. 23-31, December 2018. (SCI 2017 I/F: 3.991; Top 3.84% Impact Factor in CS, SE Category)
- C. Shin, C. Lim, J. Kim, H. Roh, and W. Lee, "A Software-based Monitoring Framework for Time-Space Partitioned Avionics Systems," IEEE Access, Vol. 5, pp. 19132-19143, September 2017. (SCI 2017 I/F: 3.557; Top 16.21% Impact Factor in Computer Science, Information Systems Category)
- H. Park, J. Yu, H. Roh, and W. Lee, "SCBF: Exploiting a Collision for Authentication in Backscatter Networks," IEEE Communications Letters, Vol. 21, No. 6, pp. 1413-1416, June 2017. (SCI 2017 I/F: 2.723; Top 35.63% Impact Factor in Telecommunications Category)
- H. Roh, C. Jung, K. Kim, S. Pack, and W. Lee, "Joint Flow and Virtual Machine Placement in Hybrid Cloud Data Centers," Journal of Network and Computer Applications (JNCA), Vol. 85, No. 1, pp. 4-13, May 2017. (SCI 2017 I/F: 3.991; Top 3.84% Impact Factor in CS, SE Category)
- S. Lee, S. H. Hyeon, J. Kim, H. Roh, and W. Lee, "The Useful Impact of Carrier Aggregation: A Measurement Study in South Korea for Commercial LTE-Advanced Networks," IEEE Vehicular Technology Magazine (IEEE VTM), Vol. 12, No. 1, pp. 55-62, March 2017. (SCI 2017 I/F: 6.038; Top 6.89% Impact Factor in Telecommunications Category)
- C. Shao, H. Roh, T. Kim, and W. Lee, "Multisource Wireless Energy Harvesting-based Medium Access Control for Rechargeable Sensors," IEEE Transactions on Consumer Electronics (IEEE TCE), Vol. 62, No. 1, pp. 119-127, May 2016. (SCI 2017 I/F: 1.802; Top 50.57% Impact Factor in Telecommuniations Category)
- C. Shao, H. Roh, and W. Lee, "Aspiration Level-Based Strategy Dynamics on the Coexistence of Spectrum Cooperation and Leasing," IEEE Communications Letters (IEEE CL), Vol. 18, No. 1, pp. 70-73, January 2014. (SCI 2017 I/F: 2.723; Top 35.63% Impact Factor in Telecommunications Category)
- K. Kim, H. Roh, W. Lee, S. Lee, and D.-Z. Du, "PND: A p-Persistent Neighbor Discovery Protocol in Wireless Networks," Wireless Communications and Mobile Computing (WCMC), John Wiley & Sons, Vol. 13, No. 7, pp. 650-662, May 2013. (SCI 2016 I/F: 1.899; Top 45% Impact Factor in Telecommunications Category)
- J. Yu, H. Roh, W. Lee, S. Pack, and D.-Z. Du, "Topology Control in Cooperative Wireless Ad-Hoc Networks," IEEE Journal on Selected Areas in Communications (IEEE JSAC) - Special Issue on Cooperative Networking - Challenges and Applications (Part II), Vol. 30, No. 9, pp. 1771-1779, October 2012. (SCI 2017 I/F: 7.172; Top 5.74% Impact Factor in Telecommunications Category)
- H. Roh, H. Park, C. Jung, W. Lee, and D.-Z. Du, "A Price-Based Spectrum Management Scheme with Stackelberg Game in Cooperative Cognitive Radio Networks," IEICE Transactions on Communications, Vol. E95-B, No. 9, pp. 2956-2958, September 2012. (SCI 2012 I/F: 0.314)
- H. Roh and W. Lee, "Tree-based Neighbor Discovery in Urban Vehicular Sensor Networks," Hindawi International Journal of Distributed Sensor Networks (IJDSN) - Advanced Issues of Operating Systems for Reliable Distributed Sensor Networks, Vol. 2012, Article ID 156590, pp. 1-7, January 2012. (SCI 2012 I/F: 0.727)
- S. W. Kim, H. Roh, and W. Lee, "CMAC-ORS: A Cooperative MAC Protocol with On-demand Relay Selection for Wireless LANs," ACM SIGMOBILE Mobile Computing and Communications Review (MC2R), Vol. 15, No. 3, pp. 25-27, July 2010.
- J. Yu, H. Roh, J. Cao, S. Pack, W. Lee, D.-Z. Du, and S. S. Hong, "Topology control for increasing connectivity in cooperative wireless ad hoc networks," IEICE Transactions on Communications, Vol. E93-B, No. 4, pp. 1029-1032, April 2010. (SCI 2010 I/F: 0.301)
International Conference Publications
- H. Roh, K. Kim, S. Pack, and W. Lee, "Flow and Virtual Machine Placement in Wireless Cloud Data Centers," in Proceedings of the 12th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness (QSHINE'2016), Seoul, Korea, July 2016, pp. 1-10.
- S. Jeong, H. Roh, and W. Lee, "Client Selection for Coordinated IEEE 802.11ac Multi-user MIMO-enabled Access Points," in Proceedings of the 6th International Conference on ICT Convergence (ICTC'2015), Jeju Island, Republic of Korea, October 2015, pp.548-553.
- H. Roh and W. Lee, "Feasibility of A Low-Cost Tx-Rx Separated Reader System for RF-powered Computers," in Proceedings of the 34th IEEE Conference on Computer Communications (IEEE INFOCOM'2015) - Poster Session, Hong Kong, China, April 2015, pp. 51-52.
- H. Roh, C. Jung, W. Lee, and D.-Z. Du, "Resource Pricing Game in Geo-distributed Clouds," in Proceedings of the 32nd IEEE Conference on Computer Communications (IEEE INFOCOM'2013), Turin, Italy, April 2013, pp. 1519-1527. (Acceptance Ratio: 17%=280/1613) Corrected TR available upon request
- H. Roh, C. Shao, S. Lee, W. Lee, and D.-Z. Du, "Secondary User Games with Spectrum Leasing Market in Cooperative Cognitive Radio Networks," in Proceedings of the 32nd IEEE Conference on Computer Communications (IEEE INFOCOM'2013) - Poster Session, Turin, Italy, April 2013, pp. 87-88.
- J. Lee, C. Shao, H. Roh, and W. Lee, "Price-based Tethering for Cooperative Networking," in Proceedings of the 27th of the International Conference on Information Networking (ICOIN'2013), Bangkok, Thailand, January 2013, pp. 379-384.
- H. Roh, C. Jung, W. Lee, and D.-Z. Du, "A Stackelberg Game for Cooperative Cognitive Radio Networks with Active SUs," in Proceedings of 2013 the 2nd International Conference on Computing, Networking and Communications (ICNC'2013), San Diego, CA, USA, January 2013, pp. 905-909. (Acceptance Ratio: 25%=133/527)
- H. Roh, H. Park, C. Jung, and W. Lee, "A Stackelberg Game for Spectrum Investment and Pricing in Cooperative Cognitive Radio Networks," in Proceedings of the 7th International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT) Student Workshop, Tokyo, Japan, December 2011, pp. 8:1-8:2.
- S. W. Kim, H. Roh, and W. Lee, "CMAC-ORS: A Cooperative MAC Protocol with On-demand Relay Selection for Wireless LANs," the 16th ACM Annual International Conference on Mobile Computing and Networking (ACM MobiCom'2010) - Poster Session, Chicago, IL, USA, September 2010.
- H. Roh, K. Kim, and W. Lee, "Delay Minimization of Tree-based Neighbor Discovery in Mobile Robot Networks," in Proceedings of the 5th International Conference on Wireless Algorithms, Systems and Applications (WASA'2010), Beijing, China, August 2010, pp. 167-171.
- K. Kim, H. Roh, and W. Lee, "Minimizing the Joining Delay for Cooperation in Mobile Robot," in Proceedings of the 2nd International Conference on Ubiquitous and Future Networks (ICUFN'2010), Jeju Island, Korea, June 2010, pp. 139-144.
- J. Yu, H. Roh, W. Lee, S. Pack, and D.-Z. Du, "Cooperative Bridges: Topology Control in Cooperative Wireless Ad hoc networks," in Proceedings of the 29th IEEE Conference on Computer Communications (IEEE INFOCOM'2010), San Diego, CA, USA, March 2010, pp. 1-9. (Acceptance Ratio: 17.52%=276/1575)
- J. Yu, H. Roh, J. Cao, W. Lee, and S. Pack, "Cooperative Bridges: Towards Energy-Efficient Topology Control for Cooperative Wireless Ad Hoc Networks," the 14th ACM Annual International Conference on Mobile Computing and Networking (ACM MobiCom'2008) - Poster Session, San Francisco, CA, USA, September 2008.
Domestic Journal Publications
- K. Kim, H. Roh, and W. Lee, "Joint Gateway and Relay Roadside Unit Placement in Vehicular Networks," Korea Multimedia Society (ISSN: 1229-778X), Vol. 19, No. 2, pp. 26-34, June 2015.
- K. Lee, H. Roh, and W. Lee, "An Efficient Broadcasting Method based on VM-CDS in Vehicular Ad-hoc Networks," Journal of KIISE: Information Networking, Vol. 40, No. 3, pp. 154-164, June 2013.
- H. Roh, J. Lee, C. Shao, and W. Lee, "Utility Maximization in Mobile Tethering-based Cooperative Heterogeneous Networks," Journal of KIISE: Computing Practices and Letters, Vol. 19, No. 4, pp. 209-213, April 2013.
Domestic Conference Publications
- J. Chun, H. Roh, and W. Lee, "Server Capacity Optimization for A Hierarchical Edge Cloud Architecture," in Proceedings of KIISE Korea Computer Congress 2017 (KCC 2017), Jeju-do, Korea, June 2017. (Selected as an Outstanding Paper Award)
- S. Seo, Y. Jang, H. Roh, and W. Lee, "Re-authentication Scheme with Improved Usability based on User Behavior Analytics," in Proceedings of KIISE Korea Computer Congress 2017 (KCC 2017), Jeju-do, Korea, June 2017.
- H. Roh, G. Noh, S. Paik, and W. Lee, "Feasibility of Multipath TCP-based Cooperative Networking Systems," in Proceedings of the 43rd Korean Institute of Information Scientists and Engineers (KIISE) Winter Conference, Pyeongchang, Gangwon-do, Korea, December 2016.
- S. Jeong, H. Roh , and W. Lee, "Indoor Localization using RSSI Standard Deviation," in Proceedings of the 24th Joint Conference on Communications and Information (JCCI), Yeosu, April 2014.
- H. Roh, J. Lee, C. Shao, and W. Lee, "Feasibility Analysis of Mobile Tethering-based Cooperative Networks," in Proceedings of the 39th Korean Institute of Information Scientists and Engineers (KIISE) Fall Conference, Daejeon, November 2012.
  (Selected as an Outstanding Presentation Award)
Domestic Patent Publication
- W. Lee, H. Roh, and J. Lee, "Apparatus and method for cooperative networking based price using tethering," Korean Patent 10-1740428, May 22, 2017.
- W. Lee, K. Kim, and H. Roh, "Apparatus and Method for Distance Metric Design between Nodes," Korean Patent 10-1538419, July 15, 2015.
- W. Lee, S. Jeong, and H. Roh, "Method and Apparatus for Controlling Client Connection in MU-MIMO Networks," Korean Patent 10-1705814, February 6, 2017.
Books (Domestic)
- E. S. Kim, H. Roh, et al., Summa Cum Laude - High School Mathematics Vol. 2, Erum E & B, 2018. (ISBN: 978-8959904549, Info.)
- H. Roh, E. S. Kim, et al., Summa Cum Laude - High School Mathematics Vol. 1, Erum E & B, 2017. (ISBN: 978-8959904181, Info.)
- H. Roh, E. S. Kim, et al., Summa Cum Laude - High School Mathematics I, Erum E & B, 2013. (Out of print, ISBN: 978-8959902217, Info.)
- E. S. Kim, H. Roh, et al., Summa Cum Laude - High School Mathematics II, Erum E & B, 2014. (ISBN: 978-8959902576, Info.)
- E. S. Kim, H. Roh, et al., Summa Cum Laude - High School Mathematics Vol. 1, Erum E & B, 2009. (Out of print, ISBN: 978-8959900572, Info.)
- E. S. Kim, H. Roh, et al., Summa Cum Laude - High School Mathematics Vol. 2, Erum E & B, 2009. (Out of print, ISBN: 978-8989900589, Info.)
- H. Roh and S. Lee, Summa Cum Laude - High School Calculus, Erum E & B, 2006. (Out of print, ISBN: 978-8959900442, Info.)
- E. S. Kim, H. Kim, H. Roh, I. Lee and W. Hyun, Summa Cum Laude - High School Mathematics 10-a, Erum E & B, 2005. (Out of print, ISBN: 978-8959900183, Info.)
- E. S. Kim, H. Kim, H. Roh, I. Lee and W. Hyun, Summa Cum Laude - High School Mathematics 10-b, Erum E & B, 2005. (Out of print, ISBN: 978-8959900190, Info.)

Honors & Awards
- Postdoctoral Fellowship Grant, National Research Foundation of Korea, 2017-2018.
  - Project Title: Design of Amorphous Network-based Intermittent Fog Networking Systems
- The 1st Place Transactions Award of 2018 Annual IEEE Consumer Electronics Society Chester W. Sall Memorial Awards, January 2018.
- Outstanding Paper Award, Dept. of Computer and Radio Communications Engineering, Graduate School, Korea University, February 2017.
- Qualcomm Innovation Award at Korea University, June 2016.
- The 8th Student of the Year (SOTY) Award, Network Research Lab., Korea University, January 2017.
- The 7th Student of the Year (SOTY) Award, Network Research Lab., Korea University, May 2016.
- The 6th Student of the Year (SOTY) Award, Network Research Lab., Korea University, January 2015.
- The 4th Student of the Year (SOTY) Award, Network Research Lab., Korea University, February 2013.
- The 3rd Student of the Year (SOTY) Award, Network Research Lab., Korea University, January 2012.
- ACM CoNEXT 2011 Student Travel Grant, December 2011.
- Bronze Prize Award at the 16th Samsung Humantech Paper Prize, February 2010.
  - Cooperative Bridges: Topology Control in Cooperative Wireless Ad Hoc Networks; (with J. Yu).
- 2009 ACM-ICPC Seoul Regional Contest 10th Place, November 2009; (Team DaTulRae, with Sundong Ahn and Soungwoo Kim).
- 2007 ACM-ICPC Seoul Regional Contest 12th Place, November 2007; (Team DaTulRae, with Jaewon Ryu and Sundong Ahn).
Scholarships
- Global Ph.D. Fellowship (GPF), MEST/NRF, 2011-2014. (Selected as one of 257 students in the 1st half of (the 1st) 2011 GPF Program)
- Research Encouragement Scholarship, Graduate School, Korea University, 2016 Fall.
- Research Assistant Scholarship, Graduate School, 2014 Spring.
- Administrative Assistant Scholarship, Graduate School, Korea University, 2012 Fall.
- Research Assistant Scholarship, Graduate School, Korea University, 2011 Spring.
- Administrative Assistant Scholarship, Graduate School, Korea University, 2010 Fall.
- Administrative Assistant Scholarship, Graduate School, Korea University, 2010 Spring.
- Administrative Assistant Scholarship, Graduate School, Korea University, 2009 Fall.
- Administrative Assistant Scholarship, Graduate School, Korea University, 2009 Spring.
- National Funding Scholarship (국고 구조개혁 장학금), MOEHRD, 2007 Fall.
- Honors Scholarship, Korea University, 2006 Spring.
- Honors Scholarship, Korea University, 2005 Fall.
Language Skills

English: Intermediate level in speaking and listening, and highly qualified in writing and reading (New TOEIC Score: 855/990)
Japanese: The ability to understand Japanese used in a variety of circumstances. (New JLPT Level N1, Score: 142/180; Cutoff Score: 100/180)
cf) High level in grammar, knowing 2,000 kanji and 10,000 words and having an integrated command of the language sufficient for life in Japanese society (Old JLPT Level 1, Score: 326/400; Cutoff Score: 280/400)

Graduate Coursework (Completed)

Linear System Theory (English, CRE563, 2012 Fall); Prof. Seongjun Oh
Advanced Operating Systems (English, CRE504, 2012 Fall); Prof. Hyuck Yoo
Nonlinear System (ECE636, 2012 Fall); Prof. Tae-Woong Yoon
Internet Architectures (English, CRE722, 2012 Spring); Prof. Wonjun Lee
Introduction to High-Capacity Computing (CRE565, 2012 Spring); Prof. Hongsuk Yi (KISTI)
Microeconomic Theory I (English, ECO501, 2012 Spring); Prof. Seung Han Yoo & Prof. Samho Lee
Game Theory (ECO608, 2012 Spring); Prof. Kihoo Yoon
Trusted Computing (English, CRE642, 2011 Fall); Prof. Gyungho Lee
Sensor Networks (English, CRE720, 2011 Spring); Prof. Wonjun Lee
Advanced Computer Architecture (English, CRE505, 2011 Spring); Prof. Gyungho Lee
IP Mobility (English, EKE634, 2011 Spring); Prof. Sangheon Pack
Communication Networks I (English, CRE676, 2011 Spring); Prof. Seung Jun Baek
Wireless Internet (English, CRE614, 2010 Fall); Prof. Wonjun Lee
Optimizations in Communication Systems (English, CRE793, 2010 Fall); Prof. Seong Jun Baek
Department Seminar (CRE500, 2010 Fall); Prof. Sang Keun Park
Stochastic Processes II (MTH724, 2010 Fall); Prof. Bong Dae Choi
Computer Network (CRE523, 2010 Spring); Prof. Wonjun Lee
Design and Analysis of Algorithms (English, CRE515, 2010 Spring); Prof. Jaewoo Kang/Prof. Dongwon Lee (Penn State Univ.; Team Teaching)
Numerical Analysis (English, MTH614, 2010 Spring); Prof. Junseok Kim
Stochastic Process I (MTH723, 2010 Spring); Prof. Bong Dae Choi
Internet Protocols (English, CRE644, 2009 Fall); Prof. Wonjun Lee
Advanced Wireless Communications (English, CRE779, 2009 Fall); Prof. Byonghyo Shim
Probability I (MTH505, 2009 Fall); Prof. Bong Dae Choi
Queueing Theory and Its Application (MTH750, 2009 Fall); Prof. Bong Dae Choi
Probability and Random Process (English, CRE562, 2009 Spring); Prof. Seongjun Oh
Advanced Mathematics (English, CRE786, 2009 Spring); Prof. Byonghyo Shim
Applied Stochastic Process (MTH751, 2009 Spring); Prof. Bong Dae Choi

Teaching Experiences
- Data Structure as the Lecturer (SECU201, 2019 Spring)
- Basis and Practice in Programming (SECU217, 2019 Spring)
- Computer Architecture as the Lecturer (SECU214, 2018 Fall)
- Introduction to Information & Communications as the Lecturer (SECU213, 2018 Spring)
- Data Structure as the Lecturer (SECU201, 2018 Spring)
- Network Theory (IME301, 2017 Fall; Lecturer: Prof. Wonjun Lee and Heejun Roh)
- Processor Architecture as the Chief TA (COSE422, 2016 Fall; Lecturer: Prof. Gyungho Lee)
- Subject 40 as the Chief TA (CYDF313, 2016 Fall; Lecturer: Prof. Gyungho Lee)
- Subject 43 as the Chief TA (CYDF316, 2016 Fall; Lecturer: Prof. Wonjun Lee)
- Research in Wireless Communication Networks as the TA (IMS845, 2016 Spring)
- Network Theory as a TA (IMS301, 2016 Spring)
- Subject 46 as the Chief TA (CYDF316, 2015 Fall)
- Subject 53 as the Chief TA (CYDF321, 2015 Spring)
- Communication Networks as the Chief TA (CNCE461, 2015 Spring)
- Sensor Networks as the TA (CRE720, 2014 Fall)
- Computer Networks as the Chief TA (COSE342, 2014 Fall)
- Subject 31 as the Chief TA (CYDF305, 2014 Spring)
- Introduction to Probability and Statistics as the Chief TA (CNCE311, 2013 Fall)
- Computer Networks as the Chief TA (CNCE304, 2013 Fall)
- Special Topics in Network Engineering as the TA (CRE804, 2013 Spring)
- Wireless Mobile Communications as the Chief TA (CNCE407, 2013 Spring)
- Wireless Mobile Communications as the Chief TA (CNCE407, 2012 Spring)
- Computer Networks as the Chief TA (CNCE304, 2011 Fall)
- Wireless Mobile Communications as the Chief TA (CNCE407, 2011 Spring)
- Computer Networks as the Chief TA (CNCE304, 2010 Fall)
- Wireless Mobile Communications as the Chief TA (CNCE407, 2010 Spring)
- Computer Networks as a TA (English, CNCE304, 2009 Fall)
Professional Activities
1. Associate Editor, Information Networking, the 32nd-34th Editorial Boards, Journal of KIISE, 2017-2019.
2. Program Committee, the 2020 IEEE Wireless Communications and Networking Conference (WCNC'2020) Seoul, Republic of Korea, April 6-9, 2020.
3. Program Committee, the 34th International Conference on Information Networking (ICOIN'2020), Barcelona, Spain, January 8-10, 2020.
4. Program Committee, the 14th Asia Joint Conference on Information Security (AsiaJCIS'2019), Kobe, Japan, August 1-2, 2019.
5. Program Committee, the 4th IEEE International Conference on Consumer Electronics Asia (IEEE ICCE-Asia'2019), Bangkok, Thailand, June 12-14, 2019.
6. Program Committee, Wireless Networking Track, the 8th IEEE/CIC International Conference on Communications in China (ICCC'2019), Changchun, China, August 11-13, 2019.
7. Program Committee, Cognitive, Cellular and Mobile Networks (CCM) Track, the 28th International Conference on Computer Communications and Networks (ICCCN'2019), Valencia, Spain, July 29 - August 1, 2019.
8. Program Committee, Distributed Green Computing and Energy Management Track, the 39th IEEE International Conference on Distributed Computing Systems (ICDCS'2019), Dallas, Texas, USA, July 7-10, 2019.
9. Program Committee, the 33rd International Conference on Information Networking (ICOIN'2019), Kuala Lumpur, Malaysia, January 9-11, 2019.
10. Program Committee, Track 5 - Mobile and Cooperative Networks Track, the 16th IEEE Consumer Communications & Networking Conference (CCNC'2019), Las Vegas, USA, January 11-14, 2019.
11. Program Committee, the 3rd International Conference on Recent Advances in Signal Processing, Telecommunications & Computing (SigTelCom'2019), Ha Noi, Vietnam, March 21-22, 2019.
12. Program Committee, the 9th International Conference on ICT Convergence (ICTC'2018), Jeju, Republic of Korea, October 17-19, 2018.
13. Program Committee, the 3rd International Conference on Consumer Electronics Asia (IEEE/IEIE ICCE-Asia'2018), Jeju, Republic of Korea, June 24-26, 2018.
14. Program Committee, the 2018 IEEE/IFIP Network Operations and Management Symposium (NOMS'2018) - Dissertation Session, Taipei, Taiwan, April 23-27, 2018.
15. Program Committee, the 32nd International Conference on Information Networking (ICOIN'2018), Chiang Mai, Thailand, January 10-12, 2018.
16. Program Committee, Ubiquitous Systems, Services and Applications Track, the 16th IEEE International Conference on Ubiquitous Computing and Communications (IUCC'2017), Guangzhou, China, December 12-15, 2017.
17. Reviewer, IEEE Access.
18. Reviewer, IEEE Internet of Things Journal.
19. Reviewer, Journal of Combinatorial Optimization.
20. Reviewer, Optimization Letters.
21. Reviewer, Journal of Communications and Networks.
22. Reviewer, Journal of Network and Computer Applications.
23. Reviewer, ICT Express (Selected as an awardee of Best Reviewer Awards in 2017).
24. Reviewer, the 12th International Conference on Mobile Ad-hoc and Sensor Networks (MSN'2016), Hufei, China, December 16-18, 2016.
25. Reviewer, the 2014 IEEE 80th Vehicular Technology Conference (VTC'2014-Fall), Vancouver, Canada, 14-17 September 2014.
Contact Information
- E-mail: hjroh AT korea.ac.kr (The best way to contact me)