GANGUK HWANG's Homepage

• International Journal Publications
  1. Y. Park, G. Hwang, and D.K. Sung, Power Saving Scheme Based on Joint Control of Buffer-Threshold and TImer in Binary Exponential Sleep Mode, accepted for publication in IET Communications, March 2012. [pdf]
  2. H.J. Cho and G. Hwang, Optimal Design for Dynamic Spectrum Access in Cognitive Radio Networks under Rayleigh Fading, accepted for publication in Journal of Industrial and Management Optimization, February 2012. [pdf]
  3. G.U. Hwang and S. Roy, Design and Analysis of Optimal Random Access Policies in Cognitive Radio Networks, IEEE Transactions on Communications, Vol. 60, No. 1, pp. 121-131, January 2012. [pdf]
  4. C.Y. Lee and G.U. Hwang, Fair and Minimum Power Allocation in a Two-hop Relay Network for QoS Support, IEEE Transactions on Wireless Communications, Vol. 10, No. 11, pp. 3864-3873, November 2011. [pdf]
  5. H.I. Cho and G.U. Hwang, Optimal Design and Analysis of A Two-hop Relay Network under Rayleigh Fading Channel for Packet Delay Minimization, Journal of Industrial and Management Optimization, Vol. 7, No. 3, pp. 607-622, August 2011. [pdf]
  6. H.I. Cho, C.Y. Lee and G.U. Hwang, Performance Analysis of Single Source and Single Relay Cooperative ARQ Protocols under Time Correlated Rayleigh Fading Channel, Performance Evaluation, Vol. 68, No. 5, pp. 395-413, May 2011. [pdf]
  7. C.Y. Lee, H.I. Cho, G.U. Hwang, Y. Do and N. Park, Performance Modeling and Analysis of IEEE 802.15.4 Slotted CSMA/CA Protocol with ACK Mode, AEU - International Journal of Electronics and Communications, Vol. 65, No. 2, pp. 123-131, February 2011. [pdf]
  8. G.U. Hwang and F. Ishizaki, Analysis of Short Term Fairness and Its Impact on Packet Level Performance, Performance Evaluation, Vol. 67, No. 12, pp. 1340 - 1352, December 2010. [pdf]
  9. G.U. Hwang and F. Ishizaki, Packet Level Performance Analysis of A Packet Scheduler Exploiting Multiuser Diversity, Telecommunications Systems, Vol. 45, No.2-3, pp. 249-258, October 2010. [pdf]
  10. H.I. Cho and G.U. Hwang, Capacity Optimal Design of A Two-hop Relay Network, Electronics Letters, Vol. 46, No. 18, pp. 1295-1297, September 2010. [pdf]
  11. J.M. Park, G.U. Hwang and B.G. Jung, Design and Analysis of an Adaptive Guard Channel based CAC Scheme in a 3G-WLAN Integrated Network, Journal of Industrial and Management Optimization, Vol. 6, No. 3, pp. 621-639, August 2010. [pdf]
  12. J.M. Park and G.U. Hwang, Mathematical Modeling of Rayleigh Fading Channels based on Finite State Markov Chains, IEEE Communications Letters, Vol. 13, No. 10, pp. 764-766, October 2009. [pdf]
  13. Y. Kim, G.U. Hwang, and H.S. Park, Feedback Limited Opportunistic Scheduling and Admission Control for Ergodic Rate Guarantees over Nakagami-m Fading Channels, Journal of Industrial and Management Optimization, Vol. 5, No. 3, pp. 553-567, August 2009. [pdf]
  14. B.J. Kim, G.U. Hwang, and Y.H. Chung, Traffic Modelling and Bandwidth Allocation Algorithm for Video Telephony Service Traffic, Journal of Industrial and Management Optimization, Vol. 5, No. 3, pp. 541-552, August 2009. [pdf]
  15. B.J. Kim, G.U. Hwang, Performance Analysis of the ertPS Algorithm and Enhanced ertPS Algorithm for VOIP Services in IEEE 802.16e Systems, IEICE Transactions on Communications, Vol. E92-B, No. 6, pp. 2000-2007, 2009. [pdf]
  16. Y. Kim and G.U. Hwang, Threshold-Based Opportunistic Scheduling for Ergodic Rate Guarantees in Wireless Networks, IEEE Transactions on Wireless Communications, Vol. 8, No. 1, pp. 84-89, January 2009. [pdf] [extended version pdf]
  17. C.Y. Jung, H.Y. Hwang, D.K. Sung and G.U. Hwang, Enhanced Markov Chain Model and Throughput Analysis of the Slotted CSMA/CA for IEEE 802.15.4 under Unsaturated Traffic Conditions, IEEE Transactions on Vehicular Technology, Vol. 58, No. 1, pp. 473-478, January 2009. [pdf]
  18. Y. Park and G.U. Hwang, An Efficient Power Saving Mechanism for Delay-guaranteed Services in IEEE 802.16e, IEICE Transactions on Communications, Vol. E92-B, No. 1, pp. 277-287, January 2009. [pdf]
  19. Y. Kim and G.U. Hwang, Performance Analysis of M-QAM Scheme Combined with Multiuser Diversity over Nakagami-m Fading Channels, IEEE Transactions on Vehicular Technology, Vol. 57, No. 5, 3251-3257, September 2008. [pdf]
  20. F. Ishizaki and G.U. Hwang, Queueing Delay Analysis for the Joint Scheduling Exploiting Multiuser Diversity over a Fading Channel, Wireless Personal Communications, Vol. 46, No. 4, 397-411, September 2008. [pdf]
  21. G.U. Hwang and F. Ishizaki, Design of A Fair Scheduler Exploiting Multiuser Diversity with Feedback Information Reduction, IEEE Communications Letters, Vol. 12, No. 2, 124-126, February 2008. [pdf]
  22. G.U. Hwang, Y. Lee and M. Y. Chung, A New Analytic Method for IEEE 802.11 Distributed Coordination Function, IEICE Transactions on Communications, Vol. E91-B, No. 1, 239-246, January 2008. [pdf]
  23. F. Ishizaki and G.U. Hwang, Cross-Layer Design and Analysis for Wireless Networks Using the Effective Bandwidth Function, IEEE Transactions on Wireless Communications, Vol. 6, No. 9, 3214-3219, September 2007. [pdf]
  24. F. Ishizaki and G.U. Hwang, Queueing Delay Analysis for Packet Schedulers with/without Multiuser Diversity over a Fading Channel, IEEE Transactions on Vehicular Technology, Vol. 56, No. 5, 3220-3227, September 2007. [pdf]
  25. B.J. Kim and G.U. Hwang, Adaptive Bandwidth Allocation Method for Long Range Dependent Traffic, Lecture Notes in Computer Science, Vol. 4268, 13-24, October 2006. (Best Student Paper Award of 6th IEEE International Workshop on IP Operations and Management, IPOM 2006, Dublin, Ireland, 2006) [pdf]
  26. Y. Chang, G.U. Hwang, and Y. Lee, Performance Analysis of The Ranging Process in Fixed and Mobile Broadband Wireless Access Systems based on OFDMA, WSEAS Transactions on Communications, Vol. 4, No. 10, pp. 989-993, 2005.
  27. G.U. Hwang and B.D. Choi, Performance Analysis of the DAR(1)/D/c priority queue under partial buffer sharing policy, Computers and Operations Research, Vol. 31, pp. 2231-2247, 2004. [pdf]
  28. B.D. Choi, B. Kim, G.U. Hwang and J. Kim, The analysis of a multiserver queue fed by a discrete autoregressive process of order 1, Operations Research Letters, Vol. 32, No. 1, 85-93, 2004. [pdf]
  29. G.U. Hwang and K. Sohraby, Performance of Correlated Queues: The Impact of Correlated Service and Inter-arrival Times, Performance Evaluation, Vol. 55, No. 1-2, 129-145, 2004. [pdf]
  30. Y. Chang, G.U. Hwang and Y. Lee, Performance Analysis of A Packet Data Buffer in a CDMA2000 Radio Access Network Supporting VPOP (Voice Preference Over Packet Data), Electronics Letters, Vol. 39, No. 16, 1212-1214, 2003. [ps]
  31. G.U. Hwang and K. Sohraby, On the Exact Analysis of a Discrete-Time Queueing System with Autoregressive Inputs, Queueing Systems, Vol. 43, No. 1-2, 29-41, 2003. [ps]
  32. G.U. Hwang, B.D. Choi and J. Kim, The Waiting Time Analysis of A Discrete Time Queue with Arrivals as A Discrete Autoregressive Process of Order 1, Journal of Applied Probability, Vol. 39, No. 3, 619-629, 2002. [pdf]
  33. G.U. Hwang, Y.C. Kim and B.D. Choi, Decay Rate Approximation of A Queue in Packet Switched Networks, Electronics Letters, Vol. 37, No. 13, pp. 864-865, 2001
  34. B.D. Choi, J. Chung and G.U. Hwang, The MAP/G/1 Queue with A Single Server Subject to Breakdowns and Repairs, Engineering Simulation, Vol 17, No. 5, pp. 659-680, 2000.
  35. G.U. Hwang and B.D. Choi, Closed-Form Expressions on The Geometric Tail Behavior of Statistical Multiplexers with Heterogeneous Traffic, IEEE Transactions on Communications, Vol. 40, No. 12, pp. 1575-1579, 1998
  36. G.U. Hwang and B.D. Choi, Maximum Throughput Analysis of Finite Switch with Correlated Destinations, Electronic Letters, Vol. 34, No. 12, pp. 1197-1198, 1998.
  37. B.D. Choi, G.U. Hwang and D.H. Han, Supplementary Variable Method Applied To The MAP/G/1 Queueing System, J. Austral. Math. Soc., Ser. B, Vol. 40, pp. 86-96, 1998.
  38. B.D. Choi, G.U. Hwang, Y.W. Jung and H. Chung, The Periodic Markov Modulated Batch Bernoulli Process and Its Application to MPEG Video Traffic, Performance Evaluation, Vol. 32, pp. 301-317, 1998.
  39. B.D. Choi and G.U. Hwang, The MAP, M/G1,G2/1 Queue with Preemptive Priority, Journal of Applied Mathematics and Stochastic Analysis, Vol. 10, No. 4, pp. 407-421, 1997.

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• Domestic Journal Publications
  1. G.U. Hwang, K. Sohraby, Power Tail Asymptotic Results of A Discrete Time Queue with Long Range Dependent Input, J. Korea Math. Soc., Vol. 40, No. 1, 87-107, 2003.

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• International Workshop and Conference Papers
  1. H.J. Cho and G.U. Hwang, Throughput Performance Optimization in Cognitive Radio Networks under Rayleigh Fading, accepted for presentation, the 2012 IEEE Wireless Communications and Networking Conference (WCNC 2012), Paris, France, April 1 - 4, 2012.
  2. H.J. Cho and G.U. Hwang, Analysis of Optimal Random Access Policies for Cognitive Radio Networks under Rayleigh Fading, International Conference on Queueing Theory and Network Applications (QTNA 2011), Seoul, Korea, August 23 - August 26, 2011.
  3. H.I. Choi and G.U. Hwang, Packet Delay Analysis of a Wireless Network with Multiple Relays under Rayleigh Fading Channels, 5th International Conference on Queueing Theory and Network Applications (QTNA 2010), Beijing, China, July 24 - July 26, 2010.
  4. C.Y. Lee and G.U. Hwang, Minimum Energy Consumption Design of A Two-hop Relay Network for QoS Guarantee, Wireless Telecommunications Symposium (WTS) 2010, Tampa, USA, April 21 - 23, 2010.
  5. J.M. Park and G.U. Hwang, Adaptive Guard Channel based CAC Scheme in a 3G-WLAN Integrated Network, International Conference on Queueing Theory and Network Applications (QTNA 2009), Fusionopolis, Singapore, July 29 - July 31, 2009.
  6. F. Ishizaki and G.U. Hwang, Throughput Performance of Quantized Proportional Fair Scheduling with Adaptive Modulation and Coding, Wireless Telecommunications Symposium (WTS) 2009, Prague, Czech Republic, April 22 - 24, 2009.
  7. H.I. Cho, C.Y. Lee and G.U. Hwang, Performance Analysis of Single Relay Cooperative ARQ Protocol under Time Correlated Rayleigh Fading Channel, The 2nd IFIP International Conference on New Technologies, Mobility and Security, Tangier, Morocco, November, 2008.
  8. Y. Kim and G.U. Hwang, Minimum Ergodic Rate Guarantees by Opportunistic Scheduling and Admission Control with Limited Feedback, The 3rd Asia-Pacific Symposium on Queueing Theory and Network Applications (QTNA 2008), Taipei, Taiwan, July, 2008.
  9. B.J. Kim, G.U. Hwang and Y.H. Chung, Bandwidth Allocation Method for Video Telephony Service Traffic, The 3rd Asia-Pacific Symposium on Queueing Theory and Network Applications (QTNA 2008), Taipei, Taiwan, July, 2008.
  10. G.U. Hwang, Analysis of Medium Access Delay and Packet Overflow Probability in IEEE 802.11 Networks, The 7th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking (Lecture Notes in Computer Science, Vol. 4712, pp. 419-430), St. Petersburg, Russia, September, 2007.
  11. Y. Kim and G.U. Hwang, Queue Length Aware Transmission Scheme of Wireless Networks for Performance Enhancement: A Cross-Layer Approach, The 2nd Asia-Pacific Symposium on Queueing Theory and Network Applications (QTNA2007), Kobe, Japan, August, 2007.
  12. Y. Park and G.U. Hwang, Performance Modelling and Analysis of the Sleep-Mode in IEEE 802.16e WMAN, IEEE Vehicular Technology Conference (VTC) 2007-spring, Dublin, Ireland, April, 2007.
  13. F. Ishizaki and G.U. Hwang, Queueing Delay Analsis for the Joint Scheduling Exploiting Multiuser Diversity over a Fading Channel, 2007 International Workshop on Recent Advances in Stochastic Operations Research, Nanzan, Japan, March, 2007.
  14. G.U. Hwang, M.Y. Chung, and Y. Lee, MAC Delay Analysis of the IEEE 802.11 Distributed Coordinate Function (extended abstract submission), The 17th ITC Specialist Seminar, Melbourne, Australia, May, 2006.
  15. F. Ishizaki and G.U. Hwang, Delay Performance under the Joint Scheduling over Gillbert-Elliot Channel, Wireless Telecommunications Symposium (WTS) 2006, Pomona, USA, April, 2006.
  16. G.U. Hwang, The Effect of Correlated Service and Inter-arrival Times on System Performance, The 6th Interantional Conference on Enformatika, Systems Sciences and Engineering (ESSE 2005), Budapest, Hungary, October, 2005.
  17. G.U. Hwang, F. Ishizaki, Y. Lee, A Latency Differentiated Service Model Based on A Deficit Round Robin Scheduler, Korea/Netherlands Joint Conference on Queueing Theory and Its Applications to Telecommunication Systems, Seoul, Korea, June 2005.
  18. G.U. Hwang and K. Sohraby, On the Queueing Behavior of Multiple First-order Autoregressive Sources, Globecom 2004, Dallas, USA, December, pp. 1187-1191, 2004.
  19. B.J. Kim and G.U. Hwang, Adaptive Bandwidth Allocation Method for Self-similar Traffic, Proceeding of TMRC Workshop 2004 on Performance of Telecommunication Systems, Korea University, Seoul, Korea, September, 2004.
  20. G.U. Hwang and K. Sohraby, Performance Analysis of a Correlated Queue in a Packet Switched Network, IPS-06-7, Taipei, Taiwan, Globecom 2002.
  21. G.U. Hwang and K. Sohraby, Modelling and Analysis of a Buffer in an ATM-based MPLS LER System, CQRS-06-3, Taipei, Taiwan, Globecom 2002.
  22. B.D. Choi, B. Kim, G.U. Hwang and J. Kim, The Analysis of DAR(1)/D/c Queueing System (abstract submission), Sixth INFORMS Telecommunications Conference, Boca Raton, Florida, March, 2002.
  23. B.D. Choi and G.U. Hwang, The Supplementary Variable Method Applied to Queueing Systems with Markovian Arrival Processes, Proceedings of Applied Mathematics Workshop - Analysis, Knots Theory, Probability and Their Applications edited by Bong Dae Choi, pp. 83-107, February 1996
  24. B.D. Choi and G.U. Hwang, The Unfinished Work in The MAP/G/1 Queue with Vacations and State-Dependent Service Times, Proceedings of Applied Mathematics Workshop - Probability and Queueing Theory edited by Bong Dae Choi, pp. 271-288, July 1996.

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• Patents
  1. G.U. Hwang, Å×ÀϺÐÆ÷Áö¼öÆĶó¹ÌÅÍ¿¹Ãø¹æ¹ý, ±¹³»Æ¯Çãµî·Ï¹øÈ£ 0310833, 2001.
  2. C. Kim, G.U. Hwang et al., °øÀ¯¸Þ¸ð¸® ¹æ½Ä ¼­ºñ½ºÁú ¹öÆÛ¸µ Àü¼Û ¹× ±³È¯ ½Ã½ºÅÛ¿¡¼­ ¼­ºñ½ºÁú Á¦¾îÀåÄ¡ ¹× ±× ¹æ¹ý, ±¹³»Æ¯Çãµî·Ï¹øÈ£ 0317986, 2001.
  3. Y. Lee, G.U. Hwang et al., ´ÙÁß ¼­ºñ½º Ç°ÁúÀ» Áö¿øÇÏ´Â ¿¬°á¼ö¶ôÁ¦¾î ÀåÄ¡ ¹× ±× ¹æ¹ý, ±¹³»Æ¯Çãµî·Ï¹øÈ£ 0277686, 2000.