International Journal

Accepted

  • Ki-Ho Lee, Hyun-Ho Choi, and Jung-Ryun Lee, “Transformer-Based Shared Embedding for Multiple Access in Semantic Communications,” IEEE Journal on Selected Areas in Communications (IF: 17.2, Q1), accepted for publication.
  • Dara Ron and Jung-Ryun Lee, “Intelligent Energy Efficiency and Service Reliability Optimization for UAV-Aided Terrestrial Networks,” IEEE Transactions on Green Communications and Networking (IF: 6.7, Q1), accepted for publication.
  • Kimchheang Chhea and Jung-Ryun Lee, “Joint Optimization of Secrecy Rate and Energy Consumption for RSMA in SAGIN via MADRL,” IEEE Transactions on Vehicular Technology (IF:7.1, Q1), accepted for publication.
  • Ki-Ho Lee, Hyun-Ho Choi, and Jung-Ryun Lee, “Attention-Driven Interference Alignment for Multi-User Semantic Communications,” IEEE Transactions on Vehicular Technology (IF:7.1, Q1), accepted for publication.

Vitou That, Sengly Muy, and Jung-Ryun Lee, “Maximizing SAGIN Coverage with Joint HAP/UAV Placement, Power, Bandwidth, and Beamforming via Deep Actor-Critic with a Temperature Function-based Policy”, Journal of King Saud University Computer and Information Sciences (IF: 6.1, Q1), accepted for publication.

2026

  • Vitou That, Sengly Muy, and Jung-Ryun Lee, “Federated learning-based spectrum and energy efficiency enhancement in HAP-assisted LEO satellite communication,” Expert Systems with Applications (IF:7.5, Q1). vol. 296, Part A, 15 Jan., 2026.
  • Vitou That, Sengly Muy, and Jung-Ryun Lee, “Multi-UAV-aided power-up and data collection: Multi-agent DQL with genetic algorithm approach,” Expert Systems with Applications (IF:7.5, Q1). vol. 297, Part B, Feb. 2026.
  • Sengly Muy, Vitou That, and Jung-Ryun Lee, “Multiple quality-of-services optimization in space–air–ground integrated network: Centralized and decentralized deep reinforcement learning approaches,” Engineering Applications of Artificial Intelligence (IF:8.0, Q1), vol. 165, Part B, 1 Feb., 2026.
  • Vitou That, Sengly Muy, and Jung-Ryun Lee, “Beamforming Center Control in LEO Satellite Communications for Maximizing Minimum Throughput of Ground Users,” Aerospace Science and Technology (IF:5.8, Q1),  vol. 170, March 2026.
  • Kimchheang Chhea and Jung-Ryun Lee, “Computing Efficiency and Latency Optimization in Intelligent Reflecting Surface-Enhanced Device-to-Device Mobile Edge Computing via Lagrange-Dual Deep Learning,” Journal of King Saud University Computer and Information Sciences (IF: 6.1, Q1), vol. 2026, 10 Jan. 2026.

2025

  • Vitou That, and Jung-Ryun Lee, “Optimizing Energy Consumption and Latency in IoT Through Edge Computing in Air–Ground Integrated Network With Deep Reinforcement Learning”, IEEE Open Journal of Vehicular Technology (IF:4,8, Q1), vol. 6,  2025.
  • Kimchheang Chhea, Sengly Muy, and Jung-Ryun Lee, “Energy Efficiency Optimization in Intelligent Reflecting Surface-Aided UAV Wireless Power Transfer Networks Using DRL”,  IEEE Transactions on Vehicular Technology (IF:7.1, Q1), vol. 74, no. 4, April 2025.
  • Kimchheang Chhea, and Jung-Ryun Lee, “Enhancing Secure Energy Efficiency of SWIPT IoT Network Considering IRS and Artificial-Noise: A Deep Learning Approach”, IEEE Access (IF:3.6, Q2), vol. 13, 2025.
  • Sengly Muy, Dara Ron, and Jung-Ryun Lee, “Reducing E2E Delay in Wireless Multi-Hop Networks: A Multi-Agent DRL-Based Approach”, KSII Transactions on Internet and Information Systems (IF: 1.5, Q4), vol. 19, no. 5, 2025.

Sothearath Meng, Kimchheang Chhea, and Jung-Ryun Lee, “Deep Reinforcement Learning and Metaheuristic Approaches to Maximize Downlink Sum-Rate for Internet of Things Systems in Non-Orthogonal Multiple Access-based Space-Air-Ground Integrated Networks”, Romanian Journal of Information Science and Technology (IF: 3,9, Q1), vol. 28, no. 4, Oct. 2025.

  • 2024

    • Hyun-Ho Choi, and Jung-Ryun Lee, “Optimization of Dynamic Beam Placement for LEO Satellite Multicast Communications,” IEEE Wireless Communications Letters (IF: 5.5, Q1). Vol. 13, No. 4, April 2024.
    • Sengly Muy, Eun-Jeong Han, and Jung-Ryun Lee, “Joint Optimization of Packet Scheduling and Energy Harvesting for Energy Conservation in D2D Networks: A Decentralized DRL Approach,” IEEE Access (IF:3.6, Q2),  Vol. 12, 2024.

2023

  • Muy Sengly and Jung-Ryun Lee, “Spectrum Efficiency Maximization for Multi-Hop D2D Communication Underlaying Cellular Networks: Machine Learning-based Methods,” Elsevier Expert Systems with Applications (IF:7.5, Q1). Vol. 213, Part A, March 2023.
  • Kimchheang Chhea, Dara Ron, and Jung-Ryun Lee, “Weighted Kuramoto De-synchronization in Wireless Networks,” CMC-Computers, Materials & Continua (IF: 3.86, Q2), Vol. 75, No. 1, 2023.
  • Sengly Muy and Jung-Ryun Lee, “Joint Optimization of Trajectory, Beamforming, and Power Allocation in UAV-Enabled WPT Networks Using DRL Combined with Water-Filling Algorithm,” Vehicular Communications (IF:6.5, Q1), Vol. 43, 2023.
  • Hyun-Ho Choi and Jung-Ryun Lee, “Joint Optimization of Altitude and Beamwidth for UAV-Powered Wireless Sensor Networks,” IEEE Transactions on Vehicular Technology (IF:7.1, Q1), vol. 72, No. 1, Jan. 2023.

2022

  • Kimchheang Chhea and Jung-Ryun Lee, “Energy-efficient Full-duplex D2D for SWIPT-empowered Underlay Cellular Networks Using a Deep Neural Network,” Computer Networks (IF:4.6, Q1). Vol. 217, Nov. 2022.
  • Dara Ron and Jung-Ryun Lee, “DNN-based Dynamic Transmit Power Control for V2V Communication Underlaid Uplink Cellular,” IEEE Transactions on Vehicular Technology (IF:7.1, Q1). vol. 71, no. 11, pp. 12413–12418, Nov. 2022.
  • Eun-Jeong Han, Muy Sengly, and Jung-Ryun Lee, “Balancing Fairness and Energy Efficiency in SWIPT-based D2D Networks: Deep Reinforcement Learning Based Approach,” IEEE Access (IF:3.6, Q2), vol. 10, pp. 64495–64503, 2022.
  • Dara Ron and Jung-Ryun Lee, “Learning-Based Joint Optimization of Mode Selection and Transmit Power Control for D2D Communication Underlaid Cellular Networks,” Elsevier Expert Systems with Applications (IF:7.5, Q1). Vol. 198, July 15, 2022.
  • Dara Ron and Jung-Ryun Lee, “Reinforcement Learning Based Dynamic Power-Saving Mode for Video Traffic in D2D Networks”, IEEE Access (IF:3.6, Q2), vol. 10,  pp. 92946-92958, 2022.
  • Sengly Muy, Dara Ron, and Jung-Ryun Lee, “Energy Efficiency Optimization for SWIPT-based D2D Underlaid Cellular Networks Using Multi-Agent Deep Reinforcement Learning,”, IEEE System Journal (IF:4.4, Q1). vol. 16, no. 2, pp. 3130 – 3138, June 2022.

2021

  • Ji-Young Jung and Jung-Ryun Lee, “Throughput and Packet Loss Analysis of Long Range Wide Area Networks,” Applied Science (IF:2.7, Q2). Vol. 11, No. 17, August 2021
  • Dara Ron and Jung-Ryun Lee, “DRL-based Sum-Rate Maximization in D2D Communication Underlaid Uplink Cellular Networks,” IEEE Transaction on Vehicular Technology (IF:7.1, Q1). vol. 70, no. 10, pp. 11121 – 11126, Oct. 2021
  • Hyun-Ho Choi, Sengly Muy, and Jung-Ryun Lee, “Geometric Analysis-Based Cluster Head Selection for Sectorized Wireless Powered Sensor Networks”, IEEE Wireless Communications Letters (IF:5.5, Q1). vol. 10, no. 3, pp. 649-653, March 2021
  • Muy Sengly, Kisong Lee, and Jung-Ryun Lee, “Joint Optimization of Spectral Efficiency and Energy Harvesting in D2D Networks Using Deep Neural Network”, IEEE Transactions on Vehicular Technology (IF:7.1, Q1). vol. 70, no. 8, pp. 8361-8366, Aug. 2021
  • Kimchheang Chhea, Dara Ron, and Jung-Ryun Lee, “Application of Kuramoto Model to Transmission Power Control in Wireless Body Area Networks”, IEEE Access (IF:3.6, Q2). vol. 8, pp. 213531-213540, 27/11/2020
  • Ji-Young Jung and Jung-Ryun Lee, “Distributed Fair Resource Allocation Algorithm in Wireless Multihop Network Systems”, IEEE Systems Journal (IF:4.4, Q1). Vol. 15, No. 4, Dec. 2021

2020

  • Myung Kil Ahn, Yong Hyun Kim, and Jung-Ryun Lee, “Hierarchical Multi-Stage Cyber ​​​​​Attack Scenario Modeling Based on G&E Model for Cyber ​​​​​​Risk Simulation Analysis”, Applied Science (IF:2.7, Q2). Vol. 10, no. 4, Feb. 2020.
  • Dara Ron and Jung-Ryun Lee, “Expectation Maximization based Power-Saving Method in Wi-Fi Direct”, IEEE Access (IF:3.6, Q2). vol. 8, pp. 158600-158611, 2020/08/06.
  • Jung-Hyun Bang and Jung-Ryun Lee, “Collision Avoidance Method Using Vector-Based Mobility Model in TDMA-Based Vehicular Ad Hoc Networks”, Applied Sciences (IF:2.7, Q2). Vol. 10, No. 12, June 2020.
  • Dara Ron and Jung-Ryun Lee, “Expectation Maximization based Power-Saving Method in Wi-Fi Direct”, IEEE Access (IF:3.6, Q2). vol. 8, pp. 158600-158611, 2020/08/06.
  • Dara Ron, Chan-Jae Lee, Kisong Lee, Hyun-Ho Choi, and Jung-Ryun Lee, “Performance Analysis and Optimization of Downlink Transmission in LoRaWAN Class B Mode”, IEEE Internet of Things Journal (IF:8.9, Q1). vol. 7, no. 8, pp. 7836 – 7847, Aug. 2020.
  • Kisong Lee, Jung-Ryun Lee, and Hyun-Ho Choi, “Learning-Based Joint Optimization of Transmit Power and Harvesting Time in Wireless-Powered Networks with Co-Channel Interference”, IEEE Transactions on Vehicular Technology (IF:7.1, Q1). vol. 63, no. 3, pp. 3500-3504, March 2020.

2019

  • Hyun-Ho Choi, and Jung-Ryun Lee, “Energy-Neutral Operation Based on Simultaneous Wireless Information and Power Transfer for Wireless Powered Sensor Networks”, Energies (IF:3.2, Q3). vol. 12, no. 20, pp. 1-17, 10 Oct. 2019.
  • Ui-Seong Yu, Hyun-Ho Choi, and Jung-Ryun Lee, “Kuramoto-Desync: Distributed and Fair Resource Allocation in a Wireless Network”, IEEE Access (IF:3.6, Q2). vol. 7, no. 1, pp. 104769-104776, Aug. 2019.
  • Hyun-Ho Choi and Jung-Ryun Lee, “Local Flooding-Based on-Demand Routing Protocol for Mobile Ad Hoc Networks”, IEEE Access (IF:3.6, Q2). vol. 7, pp. 85937-85948, June. 2019
  • Dara Ron and Jung-Ryun Lee, “Fair and Distributed Resource Allocation in Wireless Networks Using Frogs’ Calling Behavior Algorithm”, IEEE Access (IF:3.6, Q2). vol. 7, pp. 87313-87322, May. 2019.
  • Jaesung Park, Hyun-Ho Choi, and Jung-Ryun Lee, “Flocking-Inspired Transmission Power Control for Fair Resource Allocation in Vehicle-Mounted Mobile Relay Networks”, IEEE Transactions on Vehicular Technology (IF:7.1, Q1). vol. 68, no. 1, pp. 754-764, Jan. 2019.

2018

  • Hyun-Ho Choi, Bongsoo Roh, Myounghun Han and Jung-Ryun Lee, “Regional Route Maintenance Protocol Based on Local Pheromone Diffusion for Mobile Ad Hoc Networks”, Mobile Networks and Applications (IF:2.0, Q2). vol. 23, no. 3, pp. 580-596, Jun. 2018.
  • Jaesung Park, Youngjae Kim and Jung-Ryun Lee, “Mobility Load-Balancing Method for Self-Organizing Wireless Networks Inspired by Synchronization Phenomenon in Nature”, IEEE Transactions on Vehicular Technology (IF:7.1, Q1). vol. 67, no. 3, pp. 2594-2606, March 2018.
  • Ji-Young Jung, Hyun-Ho Choi and Jung-Ryun Lee, “Survey of Bio-inspired Resource Allocation Algorithms and MAC Protocol Design Based on a Bio-Inspired Algorithm for Mobile Ad Hoc Networks”, IEEE Communications Magazine (IF:8.3, Q1). vol. 56, no. 1, pp. 119-127, Jan. 2018.
  • Ji-Young Jung, Dong-Yoon Seo, and Jung-Ryun Lee, “Counter-based Broadcast Scheme Considering Reachability, Network Density, and Energy Efficiency for Wireless Sensor Networks”, Sensors (IF:3.5, Q2). vol. 18, no. 1, pp. 1-19, Jan. 2018.

2017

  • Chan-Jae Lee, Ji-Young Jung, and Jung-Ryun Lee, “Bio-inspired Distributed Transmission Power Control Considering QoS Fairness in Wireless Body Area Networks, Sensors (IF:3.5, Q2). vol. 17, no. 10, pp. 1-24, Oct. 2017.
  • Hyun-Ho Choi and Jung-Ryun Lee, “A Flocking-Inspired Algorithm for Fair Resource Allocation in Vehicle-Mounted Mobile Relays”, Elsevier Journal of Network and Computer Applications (IF: 1.3, Q1). vol. 85, pp. 134-142, May. 2017.
  • Ui-seong Yu, Ji-Young Jung, Eutteum Kong, HyungSeok Choi, Jung-Ryun Lee, “Weighted DESYNC and its Application to End-to-End Throughput Fairness in Wireless Multi-hop Network”, Mobile Information Systems (IF:1.863, Q3). vol. 2017, pp. 1-10, Apr. 2017.
  • Hyun-Ho Choi and Jung-Ryun Lee, “Multi-Phased Carrier Sense Multiple Access with Collision Resolutions and its Extension to Dynamic Multi-Phases”, Mobile Networks and Applications (IF:2.0, Q2). (online published) vol. 22, no. 112, pp. 1-13, Apr. 2017.
  • Hyeongseok Kim, Taewon Lee, Joonpyo Hong, Sohail Sabir, Jung-Ryun Lee, Young Wook Choi, Hak Hee Kim, Seungryong Cho, “A novel pre-processing technique for improving image quality in digital breast tomosynthesis”, Medical Physics (IF:3.2, Q3). vol. 44, no. 2, pp. 417-425, Feb. 2017.
  • Ji-Young Jung and Jung-Ryun Lee, “Call Acceptance Strategies in an IP-PBX Considering the End-to-End QoS of VoIP Calls Supporting Silence Suppression”, IEICE Transactions on Communications (IF:0.6, Q4). vol. E100-B, no. 2, pp. 280-292, Feb, 2017.
  • Hyun-Ho Choi and Jung-Ryun Lee, “Principles, Applications, and Challenges of Synchronization in Nature for Future Mobile Communication Systems”, Mobile Information Systems (IF:1.863, Q3). vol. 2017, pp. 1-13, Jan. 2017.

2016

  • Jaesung Park, Heejung Byun and Jung-Ryun Lee, “Bio-Inspired Load Balancing Framework for Loosely Coupled Heterogeneous Server Systems”, IEEE Transactions on Computers (IF:3.8, Q2). vol. 65, issue. 11, pp. 3280-3292, Nov, 2016.
  • Meihua Jin, Ji-Young Jung, and Jung-Ryun Lee, “Dynamic Power-Saving Method for Wi-Fi Direct Based IoT Networks Considering Variable-Bit-Rate Video Traffic”, Sensors (IF:3.5, Q2). vol. 16, issue. 10, pp. 1-15, Oct, 2016.
  • Un-Ha Kim, Eutteum Kong, Hyun-Ho Choi and Jung-Ryun Lee, “Analysis of Aggregation Delay for Multisource Sensor Data with On-Off Traffic Pattern in Wireless Body Area Networks”, Sensors (IF:3.5, Q2). vol. 16, issue. 10, pp. 1-15, Sep, 2016.
  • Hyun-Ho Choi, Seok-Chul Kwon, Youngwook Ko, Jung-Ryun Lee, “(Editorial)Self-Organization in Mobile Networking Systems”, Mobile Information Systems (IF:1.863, Q3). vol. 2016, pp. 1-2, Sep, 2016.
  • Hyun-Ho Choi, Howon Lee, Sanghoon Kim, Jung-Ryun Lee and In-Ho Lee, “Distributed medium access control protocol based on successful collision detection for dense wireless sensor networks”, International Journal of Distributed Sensor Networks (IF:2.5, Q3). vol. 12, issue. 8, pp. 1-13, Aug, 2016.
  • Youngjae Kim, Hyun-Ho Choi and Jung-Ryun Lee, “A Bio-inspired Fair Resource-Allocation Algorithm for TDMA-based Distributed Sensor Networks for IoT”, International Journal of Distributed Sensor Networks (SI: Challenges of Wireless Sensor Networks for IoT Applications) (IF:2.5, Q3). vol. 2016, pp. 1-10, Apr, 2016.
  • Hyun-Ho Choi and Jung-Ryun Lee, “A Biologically Inspired Power Control Algorithm for Green Base Station in Cellular Networks”, Energies (IF:3.2, Q3). vol. 9, no. 3, Mar, 2016.
  • Rizza Pua, Sunhee Wi, Miran Park, Jung-Ryun Lee, and Seungryong Cho, “An image-based reduction of metal artifacts in computed tomography”, Journal of Computer Assisted Tomography (IF:1.3, Q3), vol. 40, no. 1, Jan/Feb, 2016.

2014

  • Hyun-Ho Choi, Hyunggon Park and Jung-Ryun Lee, “Vertical Handover Strategy for Multi-layered Video Traffics”, IEICE Transactions on Information and Systems (IF:0.8, Q4), vol. E97-D, no. 10, pp. 2802-2805, Oct, 2014.
  • Jaesung Park, Jiyoung Jung, Hyungyu Lee and Jung-Ryun Lee, “Design and Performance Evaluation of a Distributed OFDMA-based MAC Protocol for MANETs”, The Scientific World Journal (IF:3.65, Q2), vol. 2014, pp. 1-15, Jun, 2014.
  • HyunHo Choi and JungRyun Lee, “Analysis of Energy-Delay Trade-off for Power-Saving Mechanism Specific to Request-and-Response-based Applications”, IEICE Transactions on Communications (IF:0.6, Q4), vol. E97-B, no. 7, pp. 1422-1428, Jul, 2014.
  • Un-Ha Kim, Yoon-Jae Shin, and Jung-Ryun Lee, “Bio-Inspired Time Synchronization Method for Multi-Hop Ad-Hoc Networks”, IEICE Transactions on Communications (IF:0.6, Q4), vol. E97-B, no. 8, pp. 1647-1655, April, 2014.
  • Sang-Hyun Park and Jung-Ryun Lee, “The Energy-Efficient Probabilistic Routing in MANETs”, Lecture Notes in Electrical Engineering, Frontier and Innovation in Future Computing and Communications, vol. 301, pp. 773-784, April, 2014.
  • Sang-Hyun Park, Seungryong Cho and Jung-Ryun Lee, “Energy-Efficient Probabilistic Routing Algorithm for Internet of Things”, Journal of Applied Mathematics (IF: 1.3, Q2), vol. 2014, pp. 1-7, Apr, 2014.
  • Hyun-Ho Choi, Ki-Ho Lee and Jung-Ryun Lee, “Energy-Delay Tradeoff Analysis of User State Transition Mechanism for Mobile Web Services”, Elsevier Journal of Network and Computer Applications (IF: 1.3, Q1), vol. 40, pp. 227-233, April, 2014.
  • Hyun-Ho Choi, Hyun-Gyu Lee and Jung-Ryun Lee, A New Energy-aware Source Routing Protocol for Maximization of Network Lifetime in MANET’, IEICE Transactions on Information and Systems (IF:0.8, Q4), vol. E97-D, no. 2, pp. 335-339, Feb, 2014.
  • Hyun-Ho Choi, Jung-Ryun Lee, “Distributed Transmit Power Control for Maximizing End-to-End Throughput in Wireless Multi-hop Networks”, Springer Wireless Personal Communications (IF:2.2, Q2), vol. 74, no. 3, pp. 1033-1044, Feb, 2014.
  • Jung-Ryun Lee, Sang-Hyuck Han, and Yong-Hoon Choi, “Vehicle Mobility Pattern-based Handover Scheme Using Discrete Time Markov Chain”, Elsevier Computers & Electrical Engineering, vol. 40, no. 1, pp. 100-108, Jan, 2014.

2013

  • Ji-Young Jung, Hyun-Sik Kang and Jung-Ryun Lee, “Performance Evaluation of Packet Aggregation Scheme for VoIP Service in Wireless Multi-hop Network “, Elsevier Ad Hoc Networks (IF:4.8, Q1), vol. 11, no. 3, pp. 1037-1045, April, 2013.

2012

  • HyunHo Choi, K-Ho lee, and Jung-Ryun Lee, “Analysis of Tradeoff between Energy Consumption and Activation Delay in Power Management Mechanisms”, IEEE Communications Letters (IF: 4.4, Q2), vol.16, no.3, pp.414-416, Mar, 2012.

2011

  • Keun-hang Heo, Hyun-Sik Kang and Jung-Ryun Lee, “Performance Evaluation of Vehicle-mounted Mobile Relay in Next Generation Cellular Networks “, KSII Transactions on Internet and Information Systems (IF: 0.9, Q4), vol. 5, no.5, pp. 874-887, May, 2011.

2010

  • Hyun-Ho Choi, Ohyoung Song, Yeon-Kyung Park and Jung-Ryun Lee, ‘Performance Evaluation of Opportunistic Vertical Handover Considering On-Off Characteristics of VoIP Traffic’, IEEE Trans. on Vehicular Technology (IF:7.1, Q1), vol. 59, pp. 3115-3121, Jul, 2010.
  • Ki-Ho Lee, Hyun-Ho Choi and Jung-RyunLee, ‘Throughput-Efficient Data Transmission Algorithm with QoS Support for Type-II Hybrid ARQ’, International Journal of Electronics and Communications (IF:3.2, Q2), vol. 64, no. 8, pp. 779-783, Aug, 2010.

2009

  • Hyun-Ho Choi, Ohyoung Song and Jung-Ryun Lee, ‘Voice Activity Based Vertical Handover in 3G-WLAN Interworking Networks’, IET Electronics Letters (IF:0.8, Q2), vol. 45, no. 21, pp. 1109-1101, Oct, 2009.
  • Hyun-Ho Choi, Jung-Ryun Lee and Dong-Ho Cho, ‘On the Use of a Power-Saving Mode for Mobile VoIP Devices and Its Performance Evaluation’, IEEE Transactions on Consumer Electronics (IF:10.9, Q1), vol. 55, no. 3, pp.1537-1545, Aug, 2009.
  • Jung-Ryun Lee and Jeong-Woo Lee, ‘A Probabilistic Approach for The Determination of Sleep Interval in IEEE 802.16e’, IEICE Transactions on Communications (IF:0.6, Q4), vol. E92-B, no. 8, pp. 2743-2746, Aug, 2009.
  • Jung-Ryun Lee and Dong-Ho Cho, ‘Dual Power-Saving Modes for Voice over IP Traffics Supporting Voice Activity Detection’, IET Communications (IF: 1.6, Q3), vol. 4, no. 7, pp. 1239-1249, Jul, 2009.
  • YJ Kim, JR Lee and YS Cho, ‘A paging indicator transmission technique for mobile WiMAX systems’, IEICE Transactions on Communications (IF:0.6, Q4), vol.E92-B, no.7, pp. 2542-2545, Jul, 2009.
  • Ki-Ho Lee, Hyun-Ho Choi, and Jung-Ryun Lee, “Throughput-Efficient Data Transmission Algorithm with QoS Support for Type-II Hybrid ARQ”, International Journal of Electronics and Communications (IF:3.2, Q2) , vol. 64, no. 8, August 2010.

2008

  • Jung-Ryun Lee and Dong-Ho Cho, ‘An Optimal Power-Saving Class II for VoIP Traffic and Its Performance Evaluations in IEEE 802.16e’, Computer Communication (IF: 4.3, Q2), vol 31, no 14, pp. 3204-3208, Sep, 2008.

2007

  • Jung-Ryun Lee and Dong-Ho Cho, ‘Performance Evaluation of Energy Saving Mechanism Based on Probabilistic Sleep Interval Decision in IEEE 802.16e’, IEEE Trans. on Vehicular Technology (IF:7.1, Q1), vol. 56, no. 4, pp. 1773-1780, Jul, 2007.
  • Jung-Ryun Lee, ‘A Hybrid Energy Saving Mechanism for VoIP Traffic with Silence Suppression’, Lecture Notes on Computer Science (IF: 1.53, Q2), vol. 4465, pp. 296-304, Jun, 2007.
  • Hyun-Ho Choi, Jung-Ryun Lee and Dong-Ho Cho, ‘Hybrid Power Saving Mode for VoIP Services with Silent Suppression in IEEE 802.16e Systems’, IEEE Communications Letters (IF: 4.4, Q2), vol. 11, no. 5, pp. 455-457, May, 2007.

2006

  • Jung-Ryun Lee, Keunyoung Kim and Yong-Hoon Lim, ‘Inter-sector Interference Mitigation Method in Triply-Sectorized OFDMA Systems’, Lecture Notes on Computer Science (IF: 1.53, Q2), vol. 4097, pp. 133-143, Aug, 2006.
  • Jung-Ryun Lee, “Energy Efficient Sleep Interval Decision Method Considering Delay Constraint for VoIP Traffic”, Lecture Notes on Computer Science (IF: 1.53, Q2), vol. 4003, pp. 142-151, May, 2006.
  • Jung-Ryun Lee, Dong-Ho Cho, ‘An Energy-Efficient Downlink Multiple Access Control Considering Congestion in Wireless LANs’, IEEE Communications Letters (IF: 4.4, Q2), Vol. 10, Issue 5, pp. 405-407, May, 2006.

2005

  • Jung-Ryun Lee, Sang-Wook Kwon and Dong-Ho Cho, ‘Adaptive Beacon Listening Protocol for TCP Connection in Slow-Start phase in WLAN’, IEEE Communications Letters (IF: 4.4, Q2), Vol. 9, Issue 9, pp.853-855, Sep, 2005.