2024
1. Kanghyun Heo, Hyun-Ho Choi*, and Kisong Lee*, "Joint Trajectory and Resource Optimization for UAV-Assisted SWIPT Systems: A Comparative Study of Linear and Nonlinear Energy Harvesting Models," IEEE Internet of Things Journal, vol.11, no.24, pp. 40293-40305, Dec. 2024.
2. Chaeyeon Kim, Hyun-Ho Choi*, and Kisong Lee*, "Joint Optimization of Trajectory and Resource Allocation for Multi-UAV-Enabled Wireless-Powered Communication Networks," IEEE Transactions on Communications, vol.72, no.9, pp. 5752-5764, Sep. 2024.
3. Hyun-Ho Choi, Kyu-Min Kang, and Howon Lee*, "NOMA-based ALOHA Protocol for Air-to-Ground Communications with Maximum Transmit Power Limits," IEEE Internet of Things Journal, vol. 11, no. 16, pp. 27387-27397, Aug. 2024.
4. Kisong Lee and Hyun-Ho Choi*, "Energy-Efficient Resource Allocation for Bidirectional Wireless Power and Information Transfer over Interference Channels," Journal of Network and Computer Applications, vol.227, Jul. 2024.
5. Hyun-Ho Choi, Gitae Park, Kanghyun Heo, and Kisong Lee*, "Joint Optimization of Beam Placement and Transmit Power for Multibeam LEO Satellite Communication Systems," IEEE Internet of Things Journal, vol. 11, no. 8, pp. 14804-14813, Apr. 2024.
6. Hyun-Ho Choi and Jung-Ryun Lee*, "Optimization of Dynamic Beam Placement for LEO Satellite Multicast Communications," IEEE Wireless Communications Letters, vol. 13, no. 4, pp. 1029-1033, Apr. 2024.

2023
7. Kisong Lee, Hyun-Ho Choi*, Woongsup Lee*, and Victor C. M. Leung, "Wireless Powered Interference Networks: Applications, Approaches, and Challenges," IEEE Vehicular Technology Magazine, vol. 18, no. 4, pp. 102-110, Dec. 2023.
8. Junseung Lee, Hyun-Ho Choi*, Seung-Chan Lim, Hyungsub Kim, Jeehyeon Na, and Howon Lee*, "Low-complexity Q-learning for Energy-aware Small-cell Networks with Integrated Access and Backhaul," IEEE Access, vol. 11, pp. 121529-121538, Oct. 2023.
9. Kisong Lee and Hyun-Ho Choi*, "Transmit Power Control for Secure Wireless-Powered Sensor Networks with Malicious Energy Harvester," IEEE Access, vol. 11, pp. 103146-103153, Sep. 2023.
10. Hyun-Ho Choi, Jinhyung Oh, Kyu-Min Kang, and Howon Lee*, "Idleless Slotted ALOHA Protocol for Drone Swarm Identification," IEEE Trans. on Vehicular Technology, vol. 72, no. 8, pp. 11080-11085, Aug. 2023.
11. Woongsup Lee, Howon Lee*, Hyun-Ho Choi*, "Deep Learning-based Network-Wide Energy Efficiency Optimization in Ultra-Dense Small Cell Networks," IEEE Trans. on Vehicular Technology, vol. 72, no. 6, pp. 8244-8249, June 2023.
12. Hyun-Ho Choi and Jung-Ryun Lee*, "Joint Optimization of Altitude and Beamwidth for UAV-Powered Wireless Sensor Networks," IEEE Trans. on Vehicular Technology, vol. 72, no. 1, pp. 1279-1284, Jan. 2023.

2022
13. Kyung-Seop Shin, Hyun-Ho Choi*, and Howon Lee*, "Knowledge Transfer-based Multi-agent Q-learning for Medium Access in Dense Cellular Networks," IEEE Wireless Communications Letters, vol. 11, no. 12, pp. 2542-2545, Dec. 2022.
14. Howon Lee, Eunjin Kim, Hyungsub Kim, JeeHyeon Na, and Hyun-Ho Choi*, "Multi-Agent Q-Learning Based Cell Breathing Considering SBS Collaboration for Maximizing Energy Efficiency in B5G Heterogeneous Networks," Elsevier ICT Express, vol. 8, no. 4, pp. 525-529, Dec. 2022.
15. Hyun-Ho Choi, Hyungsub Kim, JeeHyeon Na, and Howon Lee*, "Soft Non-Orthogonal Multiple Access-based Handover for Throughput Enhancement," IEEE Trans. on Vehicular Technology, vol. 71, no. 9, pp. 10197-10202, Sep. 2022.
16. Kisong Lee and Hyun-Ho Choi*, "Weighted Sum Rate Maximization for Two-Way Wireless Powered Interference Channels," IEEE Trans. on Vehicular Technology, vol. 71, no. 5, pp. 5627-5632, May 2022.
17. Kisong Lee, Hyun-Ho Choi*, Woongsup Lee*, and Victor C. M. Leung, "Learning-Based Optimization of Wireless-Powered Two-Way Interference Channels With Imperfect CSI," IEEE Internet of Things Journal, vol. 9, no. 9, pp. 6934-6943, May 2022.
18. Eunjin Kim, Hyun-Ho Choi*, Hyungsub Kim, JeeHyeon Na, and Howon Lee*, "Optimal Resource Allocation Considering Non-Uniform Spatial Traffic Distribution in Ultra-Dense Networks: A Multi-Agent Reinforcement Learning Approach," IEEE Access, vol. 10, pp. 20455-20464, Feb. 2022.

2021
19. Hyun-Ho Choi, Hyungsub Kim, JeeHyeon Na, and Howon Lee*, "Non-Orthogonal Multiple Access-based Handover for Throughput Enhancement," IEEE Trans. on Vehicular Technology, vol. 70, no. 11, pp. 12278-12282, Nov. 2021.
20. Woongsup Lee, Kisong Lee*, Hyun-Ho Choi*, and Victor C. M. Leung, "Deep Learning for SWIPT: Optimization of Transmit-Harvest-Respond in Wireless-Powered Interference Channel," IEEE Trans. on Wireless Communications, vol. 20, no. 8, pp. 5018-5033, Aug. 2021.
21. Hyun-Ho Choi and Kisong Lee, "Wireless Energy Sharing for Maximizing Lifetime of Linear Multihop Communications," IEEE Internet of Things Journal, vol. 8, no. 15, pp. 12189-12202, Aug. 2021.
22. Hyun-Ho Choi and Kisong Lee, "Cooperative Wireless Power Transfer for Lifetime Maximization in Wireless Multihop Networks," IEEE Trans. on Vehicular Technology, vol. 70, no. 4, pp. 3984-3989, Apr. 2021.
23. Hyun-Ho Choi, Muy Sengly, and Jung-Ryun Lee, "Geometric Analysis-Based Cluster Head Selection for Sectorized Wireless Powered Sensor Networks," IEEE Wireless Communications Letters, vol. 10, no. 3, pp. 649-653, Mar. 2021.
24. Hyun-Ho Choi and Kisong Lee, "Bioinspired Cooperative Wireless Energy Transfer for Lifetime Maximization in Multihop Networks," IEEE Internet of Things Journal, vol. 8, no. 3, pp. 1611-1622, Feb. 2021.
25. Kisong Lee, Junseong Bang*, and Hyun-Ho Choi*, "Secrecy Outage Minimization for Wireless-Powered Relay Networks with Destination-Assisted Cooperative Jamming," IEEE Internet of Things Journal, vol. 8, no. 3, pp. 1467-1476, Feb. 2021.

2020
26. Kisong Lee, Jun-Pyo Hong, and Hyun-Ho Choi*, "Adaptive Jamming Power Control for Untrusted Relay Networks with Imperfect Channel Reciprocity," IEEE Systems Journal, vol. 14, no. 3, pp. 4217-4220, Sep. 2020.
27. Chan-Jae Lee, Dara Ron, 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, vol. 7, no. 8, pp. 7836-7847, Aug. 2020.
28. 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 Trans. on Vehicular Technology, vol. 69, no. 3, pp. 3500-3504, Mar. 2020.
29. Kisong Lee and Hyun-Ho Choi*, "Fast Wireless Power Transfer for Multiple Receivers in Linear Topology," IEEE Systems Journal, vol. 14, no. 1, pp. 649-652, Mar. 2020.
30. Kisong Lee, Jin-Taek Lim, and Hyun-Ho Choi, "Impact of Outdated CSI on the Secrecy Performance of Wireless-Powered Untrusted Relay Networks," IEEE Transactions on Information Forensics and Security, vol. 15, no. 1, pp. 1423-1433, Jan. 2020.

2019
31. Hyun-Ho Choi, Wonjae Shin, Marco Levorato, and H. Vincent Poor, "Harvest-Or-Access: Slotted ALOHA for Wireless Powered Communication Networks," IEEE Trans. on Vehicular Technology, vol. 68, no. 11, pp. 11394-11398, Nov. 2019.
32. Hyun-Ho Choi and Jung-Ryun Lee, "Energy-Neutral Operation Based on Simultaneous Wireless Information and Power Transfer for Wireless Powered Sensor Networks," MDPI Energies, vol. 12, no. 20, pp. 1-17, Oct. 2019.
33. Ui-Seong Yu, Hyun-Ho Choi, and Jung-Ryun Lee, "Kuramoto-Desync: Distributed and Fair Resource Allocation in a Wireless Network," IEEE Access, vol. 7, no. 1, pp. 104769-104776, Aug. 2019.
34. Hyun-Ho Choi and Jung-Ryun Lee, "Local Flooding-based On-Demand Routing Protocol for Mobile Ad Hoc Networks," IEEE Access, vol. 7, no. 1, pp. 85937-85948, June 2019.
35. 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 Trans. on Vehicular Technology, vol. 68, no. 1, pp. 754-764, Jan. 2019.
36. Hyun-Ho Choi and Wonjong Noh, "Outage Analysis of User Pairing Algorithm for Full-Duplex Cellular Networks," Hindawi Wireless Communications and Mobile Computing, vol. 2019, pp. 1-12, Jan. 2019.
37. Kisong Lee, Jun-Pyo Hong, Hyun-Ho Choi*, and Tony Q. S. Quek, "Wireless-Powered Two-Way Relaying Protocols for Optimizing Physical Layer Security," IEEE Transactions on Information Forensics and Security, vol. 14, no. 1, pp. 162-174, Jan. 2019.

2018
38. Kisong Lee and Hyun-Ho Choi*, "Secure Analog Network Coding with Wireless Energy Harvesting under Multiple Eavesdroppers," IEEE Access, vol. 6, no. 1, pp. 76289-76301, Nov. 2018.
39. Hyun-Ho Choi and Wonjae Shin, "Slotted ALOHA for Wireless Powered Communication Networks," IEEE Access, vol. 6, no. 1, pp. 53342-53355, Sep. 2018.
40. Seho Han, Kisong Lee, Hyun-Ho Choi, and Howon Lee*, "BiPAD: Binomial Point Process Based Energy-Aware Data Dissemination in Opportunistic D2D Networks," MDPI Energies, vol. 11, no. 8, pp. 1-9, Aug. 2018
41. Kisong Lee, Jun-Pyo Hong, Hyun-Ho Choi*, and Marco Levorato, "Adaptive Wireless-powered Relaying Schemes with Cooperative Jamming for Two-hop Secure Communication," IEEE Internet of Things Journal, vol. 5, no. 4, pp. 2793-2803, Aug. 2018.
42. 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," Springer Mobile Networks and Applications, vol. 23, no. 3, pp. 580-596, June 2018.
43. 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, vol. 56, no. 1, pp 119-127, Jan. 2018.

2017
44. Myungjin Cho, Howon Lee*, Hyun-Ho Choi*, and Bahram Javidi, "A Three-Dimensional Image Transmission Using In-Network Computation in Wireless Multi-Camera Networks," IEEE Journal of the Electron Devices Society, vol. 5, no. 6, pp 445-452, Nov. 2017.
45. In-Ho Lee, Hyun-Ho Choi, and Howon Lee, "Outage Performance of Selective Dual-Hop MIMO Relaying with OSTBC and Transmit Antenna Selection in Rayleigh Fading Channels," KIPS Journal of Information Processing Systems, vol. 13, no. 5, pp. 1071-1088, Oct. 2017.
46. Hyun-Ho Choi and Jung-Ryun Lee, "Multi-Phased Carrier Sense Multiple Access with Collision Resolution and its Extension to Dynamic Multi-Phases," Springer Mobile Networks and Applications, vol. 22, no. 5, pp 918-930, Oct. 2017.
47. Hyun-Ho Choi and Jung-Ryun Lee, "Applying a Flocking-Inspired Algorithm to Fair Resource Allocation of Vehicle-Mounted Mobile Relays," QShine 2016, LNICST 199, pp. 242-250, 2017.
48. Hyun-Ho Choi* and Jung-Ryun Lee, "Multi-Phased Carrier Sense Multiple Access with Collision Resolution," QShine 2016, LNICST 199, pp. 223-232, 2017.
49. Wonjae Shin, Jong-Bu Lim, Hyun-Ho Choi*, Jungwoo Lee, and H. Vincent Poor, "Cyclic Interference Alignment for Full-Duplex Multi-Antenna Cellular Networks," IEEE Transactions on Communications, vol. 65, no. 6, pp. 2657-2671, June 2017.
50. 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, vol. 85, pp. 134-142, May 2017.
51. Hyun-Ho Choi, "Adaptive and Prioritized Random Access and Resource Allocation Schemes for Dynamic TDMA/TDD Protocols," Journal of Information and Communication Convergence Engineering, vol. 15, no. 1, pp. 28-36, Mar. 2017.
52. Wonjong Noh, Wonjae Shin, and Hyun-Ho Choi*, "Performance Analysis of User Pairing Algorithm in Full-Duplex Cellular Networks," Hindawi Mobile Information Systems, vol. 2017, pp. 1-12, Mar. 2017.
53. Wonjong Noh, Wonjae Shin, TaeDong Lee, Hyun-Ho Choi*, "Distributed Uplink Interference Control based on Resource Splitting in Heterogeneous Cellular Networks," Springer Wireless Networks, vol. 23, no. 2, pp. 625-640, Feb. 2017.
54. Hyun-Ho Choi and Jung-Ryun Lee, "Principles, Applications, and Challenges of Synchronization in Nature for Future Mobile Communication Systems," Hindawi Mobile Information Systems, vol. 2017, pp. 1-13, Jan. 2017.

2016
55. Hyun-Ho Choi, Seok-Chul Kwon, Youngwook Ko, and Jung-Ryun Lee, "Self-Organization in Mobile Networking Systems," Hindawi Mobile Information Systems, vol. 2016, pp. 1-2, Dec. 2016.
56. Hyun-Ho Choi* and Jung-Ryun Lee, "Bio-Inspired Uplink Power Control for Energy-Efficient Mobile Stations in Wireless Cellular Networks," INFORMATION-An International Interdisciplinary Journal, vol. 19, no. 11, pp. 5119-5124, Nov. 2016.
57. Un-Ha Kim, Eutteum Kong, Hyun-Ho Choi*, Jung-Ryun Lee*, "Analysis of Aggregation Delay for Multisource Sensor Data with On-Off Traffic Pattern in Wireless Body Area Networks," MDPI Sensors, vol. 16, no. 10, Oct. 2016.
58. Hyun-Ho Choi, Howon Lee, Sanghoon Kim, Jung-Ryun Lee, and In-Ho Lee, "Distributed Medium Access Control Protocol Based on Successive Collision Detection for Dense Wireless Sensor Networks," SAGE International Journal of Distributed Sensor Networks, vol. 12, no. 8, pp. 1-13, July 2016.
59. SangHoon Kim, Hyun-Ho Choi, and YunSeop Yu, "Improvements in Adhesion Force and Smart Embedded Programming of Wall Inspection Robot," Springer Journal of Supercomputing, vol. 72, no. 7, pp. 2635-2650, July 2016.
60. Hyun-Ho Choi, Howon Lee, Sanghoon Kim, and In-Ho Lee, "Throughput Analysis and Optimization of Distributed Collision Detection Protocols in Dense Wireless Local Area Networks," Journal of Communications and Networks, vol. 18, no. 3, pp. 502-512, June 2016.
61. Hyun-Ho Choi, Jung-Ryun Lee, Bongsoo Roh, Mijeong Hoh, and HyungSeok Choi, "Bio-Inspired Routing Protocol Based on Pheromone Diffusion in Mobile Ad Hoc Networks," EAI Endorsed Transactions on Collaborative Computing, vol. 16, no. 9, May 2016
62. Youngjae Kim, Hyun-Ho Choi, and Jung-Ryun Lee, "A Bio-inspired Fair Resource-Allocation Algorithm for TDMA-based Distributed Sensor Networks for IoT," Hindawi International Journal of Distributed Sensor Networks, vol. 2016, pp. 1-10, Mar. 2016.
63. Hyun-Ho Choi and Jung-Ryun Lee, "A Biologically Inspired Power Control Algorithm for Energy-Efficient Cellular Networks," MDPI Energies, vol. 9, no. 3, Mar. 2016.
64. Hyun-Ho Choi* and Sanghoon Kim, "Optimal Number of Neighbors for Fast Consensus in Wireless Networks with MAC Delay," INFORMATION-An International Interdisciplinary Journal, vol. 19, no. 2, pp. 465-472, Feb. 2016.

2015
65. Hyun-Ho Choi, "Ad Hoc Cooperative Vertical Handover for Next-Generation Heterogeneous Networks," AEU - International Journal of Electronics and Communications, vol. 69, no. 10, pp. 1557-1561, Oct. 2015.
66. Hyun-Ho Choi, In-Ho Lee, and Howon Lee, "Delay Analysis of Carrier Sense Multiple Access with Collision Resolution," Journal of Communications and Networks, vol. 17, no. 3, pp. 275-285, June 2015.

2014
67. Sanghoon Kim, Joowhan Park, Taewhan Kim, Jaewoong Shin, Yunseop Yu, and Hyun-Ho Choi, "Improvement of Adhesion Force and Locomotion of Wall Climbing Robot using Physical Analysis," INFORMATION-An International Interdisciplinary Journal, vol. 17, no. 11, pp. 5513-5521, Nov. 2014.
68. Hyun-Ho Choi, Hyunggon Park, and Jung-Ryun Lee, "Vertical Handover Strategy for Multi-Layered Real-Time Video Traffics," IEICE Trans. on Information and Systems, vol. E97-D, no. 10, pp. 2802-2805, Oct. 2014
69. Hyun-Ho Choi and Jung-Ryun Lee, "Analysis of Energy-Delay Trade-off for Power-Saving Mechanism Specific to Request-and-Response-based Applications," IEICE Trans. on Communications, vol. E97-B, no. 7, pp. 1422-1428, July 2014.
70. 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, vol. 40, pp. 227-233, Apr. 2014.
71. Hyun-Ho Choi, "Carrier Sensing Multiple Access with Collision Resolution (CSMA/CR) Protocol for Next-Generation Wireless LAN," INFORMATION-An International Interdisciplinary Journal, vol. 17, no. 4, pp. 1465-1479, Apr. 2014.
72. Hyun-Ho Choi, "On the Degrees of Freedom of Interference Alignment for Multi-Cell MIMO Interfering Broadcast Channels," Hindawi The Scientific World Journal, vol. 2014, pp. 1-8, Feb. 2014.
73. 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 Trans. on Information and Systems, vol. E97-D, no. 2, pp. 335-339, Feb. 2014.
74. Sangjun Lee, Howon Lee, Hyun-Ho Choi, and In-Ho Lee, "Outage Probability of Decode-and-Forward Relaying Systems with Efficient Partial Relay Selection in Nakagami Fading Channels," ETRI Journal, vol. 36, no. 1, pp. 22-30, Feb. 2014.
75. Hyun-Ho Choi and Jung-Ryun Lee, "Distributed Transmit Power Control for Maximizing End-to-End Throughput in Wireless Multi-hop Networks," Springer Wireless Personal Communications, vol. 74, no. 3, pp. 1033-1044, Feb. 2014.

2013
76. Hyun-Ho Choi, Jung-Min Moon, In-Ho Lee, and Howon Lee "Carrier Sense Multiple Access with Collision Resolution," IEEE Communications Letters, vol. 17, no. 6, pp. 1284-1287, June 2013.
77. In-Ho Lee, Howon Lee, and Hyun-Ho Choi*, "Exact Outage Probability of Relay Selection in Decode-and-Forward Based Cooperative Multicast Systems," IEEE Communications Letters, vol. 17, no. 3, pp. 483-486, Mar. 2013

2012
78. Wonjae Shin, Wonjong Noh, KyungHun Jang, and Hyun-Ho Choi*, "Hierarchical Interference Alignment for Downlink Heterogeneous Networks," IEEE Trans. on Wireless Communications, vol. 11, no. 12, pp. 4549-4559, Dec. 2012
79. Hyun-Ho Choi, Ki-Ho Lee, and Jung-Ryun Lee, "Analysis of Tradeoff between Energy Consumption and Activation Delay in Power Management Mechanisms," IEEE Communications Letters, vol. 16, no. 3, pp. 414-416, Mar. 2012

~2011
80. Hyun-Ho Choi and Dong-Ho Cho, "On the Use of Ad Hoc Cooperation for Seamless Vertical Handoff and Its Performance Evaluation," Springer Mobile Networks and Applications, vol. 15, no. 5, pp. 750-766, Oct. 2010
81. Hyun-Ho Choi, "An Optimal Handover Decision for Throughput Enhancement," IEEE Communications Letters, vol. 14, no. 9, pp. 851-853, Sep. 2010
82. Ki-Ho Lee, Hyun-Ho Choi, and Jung-Ryun Lee, "Throughput-Efficient Data Transmission Algorithm with QoS Support for Type-II Hybrid ARQ," AEU Int. J. Electron. Commun., vol. 64, no. 8, pp. 779-783, Aug. 2010
83. 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, vol. 59, no. 6, pp. 3115-3121, July 2010
84. Ki-Ho Lee, Hyun-Ho Choi*, and Dong-Ho Cho, "Performance Evaluation of Resource Allocation Scheme Based on Hierarchical Constellation in Cellular Networks," IEICE Trans. on Communications, vol. E93-B, no. 5, pp. 1289-1292, May 1. 2010
85. Hyun-Ho Choi, Ohyoung Song, and Jung-Ryun Lee, "Voice-activity-based vertical handover in 3G-WLAN interworking networks," IET Electronics Letters, vol. 45, no. 21, pp. 1099-1101, Oct 8, 2009
86. 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 Trans. on Consumer Electronics, vol. 55, no. 3, pp. 1537-1545, Aug. 2009
87. Hyun-Ho Choi and Dong-Ho Cho, "Optimal Sleep Interval Decision for Energy-Efficient VoIP Services in Wireless Networks," IET Electronics Letters, vol. 43, no. 15, pp. 818-819, July 19, 2007
88. Hyun-Ho Choi, Jung-Ryun Lee, and Dong-Ho Cho, "Hybrid Power Saving Mechanism for VoIP Services with Silence Suppression in IEEE 802.16e Systems," IEEE Communications Letters, vol. 11, no. 5, pp. 455-457, May 2007
89. Hyun-Ho Choi, Osok Song, and Dong-Ho Cho, "Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS-WLAN Interworking," Springer Wireless Personal Communications, vol. 41 , no. 3, pp. 345-364, May 2007
90. Hyun-Ho Choi, Sun-Ho Lee, and Dong-Ho Cho, "Hybrid Access Scheme Based on One-Phase Preamble and Channel Monitoring/Assignment for Satelite Communications," IEEE Communications Letters, vol. 8, no. 2, pp. 96-98, Feb. 2004
91. Jumin Lee, Hyun-Ho Choi*, Jemin Chung, and Dong-Ho Cho, "Performance Analysis of Handoff for Virtual Cellular Network with Centralized/Distributed Resource Control," IEICE Trans. on Communications, vol. E86-B, no. 9, pp. 2828-2834, Sep. 2003
92. Hyun-Ho Choi, Gyung-Ho Hwang, and Dong-Ho Cho, "Adaptive Random Access and Resource Allocation Scheme based on Traffic Load in HiperLAN Type2 System," IEEE Communications Letters, vol. 7, no. 4, pp. 192-194, Apr. 2003
93. Hyu-Dae Kim, Bum-Sik Bae, Hyun-Ho Choi*, and Dong-Ho Cho, "A New CPCH Access Scheme for Priority Service," IEICE Trans. on Communications, vol. E86-B, no. 4, pp. 1448-1452, Apr. 2003
94. Youl-Kyu Suh, Sung-Hong Wie, Hyun-Ho Choi*, and Dong-Ho Cho, "Performance Analysis of Bulk Handoff in Integrated Voice/Data Wireless Networks," IEICE Trans. on Communications, vol. E85-B, no. 7, pp. 1396-1401, July 2002

  (*: Corresponding author)