Journal Publications

  1. Yutae Lee
    “Opportunistic spectrum access with combined use of primary and secondary channels in cognitive networks”
    Submitted    , 2012.
     
  2. Yutae Lee
    “Periodic sensing and myopic access policy using general channel tracking model in cognitive radio networks”
    Submitted    , 2012.
     
  3. Yutae Lee
    “Performance analysis of queueing system with multiple delayed vacations”
    Submitted    , 2012.
     
  4. Yutae Lee, Chul Geun Park, and Dong Bo Sim
    “Cognitiveradio spectrum access with prioritized secondary users”
    Applied Mathematics and Information Sciences    , Vol. 6, No. 2S, 2012.
     
  5. Yutae Lee
    “A simple model for non-saturated opportunistic spectrum access networks”
    IEICE Transaction on Communications    , Vol. E94-B, No. 11, pp. 3125-3127, 2011.
     
  6. Yutae Lee and Yu Jong Lee
    “Modelling and analysis of non-saturated opportunistic spectrum access networks”
    Electronics Letters    , Vol. 47, No. 15, pp. 883-884, 2011.
     
  7. Ho.-Sin Cho, Jung Chae Shin, and Yutae Lee
    “System dwelling times of secondary call in cognitive radio systems”
    IEICE Transaction on Communications    , Vol. E94-B, No. 7, pp. 2170-2173, 2011.
     
  8. Yutae Lee and Dong Bo Shim
    “Modeling and analysis for opportunistic spectrum access”
    Journal of Applied Mathematics and Informatics    , Vol. 29, No. 5, pp. 1295-1302, 2011.
     
  9. Yutae Lee
    “Performance ofmyopic policy for opportunistic spectrum sharing”
    East Asian Mathematical Journal    , Vol. 27, No. 1, pp. 23-33, 2011.
     
  10. Yutae Lee
    “Opportunistic spectrum access in un-slotted primary networks”
    IEICE Transaction on Communications    , Vol. E93-B, No. 11,pp. 3141-3143, 2010.
     
  11. Yutae Lee
    “Modified myopic policy with collision avoidance for opportunistic spectrum access”
    Electronics Letters    , Vol. 46, No. 12, pp. 871-872, 2010.
     
  12. Yutae Lee
    “Discrete-timebulk-service queue with Markovian service interruption and probabilistic bulk size”
    Journal of Applied Mathematics and Informatics    , Vol. 28, No. 1-2, pp. 275-282,2010.
     
  13. Yutae Lee, Dan Keun Sung, Ho-Sin Cho, Tae Suk Kim, and Bong Dae Choi
    “Performance analysis of an elevator systemduring up-peak”
    Mathematical and Computer Modelling    , Vol. 49, pp. 423-431,2009.
     
  14. Jong Min Jang, Yutae Lee, Soong-Hee Lee, Dong-il Kim, and Sam-gil Choi
    “Seamless handover protocol to reduce handover latency”
    The Journal of the Korean Institute of Information and Communication Engineering    ,Vol. 13, No. 2,  pp. 277-284, 2009.
     
  15. Yutae Lee, Min Young Chung, and Tae Jin Lee
    “Performance analysis of IEEE 802.11 DCF under non-saturation condition”
    Mathematical Problems in Engineering    , Vol. 2008, pp. 1-17, 2008.
     
  16. Yutae Lee
    “Opportunistic spectrum access in cognitive networks”
    Electronics Letters    , Vol. 44, No. 17, pp. 1022-1024, 2008.
     
  17. Yutae Lee
    “Performance of secondary users inopportunistic spectrum access”
    Electronics Letters    , Vol. 44, No. 16, pp.981-983, 2008.
     
  18. Min Young Chung, Gang Uk Hwang, and Yutae Lee
    “A new analytic method for IEEE 802.11distributed coordination function”
    IEICE Transactions on Communications    ,Vol. E91-B, No. 1, pp. 239-246, 2008.
     
  19. Yutae Lee, Jong Min Jang, Key-Sang Lee, Dong-il Kim, and Chang Kyu Kim
    “Access delay and packet delay of EDCA in IEEE 802.11e wireless network”
    The Journal of the Korean Institute of Information and Communication Engineering    ,Vol. 12, No. 8,  pp. 1420-1426, 2008.
     
  20. Yutae Lee, Dan Keun Sung, Bong Dae Choi, and Bara Kim
    “Delay analysis of an M/G/1/k priority queueing system with push-out scheme”
    Mathematical Problems in Engineering    , Vol. 2007, pp. 1-12, 2007.
     
  21. Yutae Lee, Kye Sang Lee, and Jong Min Jang
    “Saturation throughput analysis of IEEE 802.11e EDCA”
    Lecture Notes in Computer Science    , Vol. 4682, pp. 1223-1232, 2007.
     
  22. Yutae Lee
    “Analysis of multiple-places reservationdiscipline”
    IEICE Transactions on Communications    , Vol. E89-B, No. 11, pp.3114-3116, Oct. 2006.
     
  23. Yutae Lee
    “Discrete-timeGeo^X/G/1 queue with place reservation discipline”
    Journal of Applied Mathematics and Computing    , Vol. 22, No. 1-2, Sept. 2006.
     
  24. Min Young Chung, Myung-Hee Chung, Tae-Jin Lee and Yutae Lee
    “Performance analysis of HomePlug 1.0 MAC with CSMA/CA”
    IEEE Journal on Selected Areas in Communications    , Vol. 24, No. 7, pp.1411-1420, Jul. 2006.
     
  25. Woochul Lee, Yutae Lee, Soong Hee Lee and Dong Il Kim
    “Comparison of energy efficiency of S-MAC/T-MAC protocol for wireless sensor networks”
    WSEAS Transaction on Communications    , Vol. 5, No. 8, Aug. 2006.
     
  26. Min Young Chung, Min-Su Kim, Tae-Jin Lee and Yutae Lee
    “Performance evaluation of an enhanced GDCF for IEEE 802.11”
    IEICE Transaction on Communications    , Vol. E88-B, No. 10, pp. 4125-4128,Oct. 2005.
     
  27. Yong Chang, Gang Uk Hwang and Yutae Lee
    “Analytic approach for calculating the minimally required ranging codes in fixed and mobile broadband wireless access system based on OFDMA”
    WSEAS Transaction on Communications    , Vol. 4, No. 10, pp. 989-993, Oct.2005.
     
  28. Chul Geun Park, Dong Hwan Han, Yutae Lee and Bara Kim
    “Waiting time analysis of gated polling system for bandwidth allocation in a passive optical network”
    WSEAS Transaction on Communications    , Vol. 4, No. 10, pp. 963-970, Oct.2005.
     
  29. Yutae Lee, Dong Hwan Han and Chul Geun Park
    “Saturation throughput and delay analysis of DCF in the IEEE 802.11 wireless LANs”
    WSEAS Transaction on Communications    , Vol. 4, No. 9, pp. 776-783, Sep. 2005.
     
  30. Yutae Lee
    “Discrete-time queue with variable service capacity”
    Journal of the Korean Mathematical Society    , Vol. 42, No. 3, pp. 517-527,May 2005.
     
  31. Yutae Lee and Hae Chung
    “Grant scheduling method to improve the channel efficiency of Ethernet passive optical network”
    Proceedings of the Korean Institute of Communication Sciences    , Vol. 30, No. 4B, pp. 186-191,Apr. 2005.
     
  32. Jungchae Shin, Yutae Lee, Jeong Ho Kim and Ho-Shin Cho
    “A mathematical Model for asymmetrical/heterogeneous traffic management in TD-CDMA systems”
    Proceeding of the Korean Institute of Communication Sciences    , Vol. 30, No.4A, pp. 259-270, Apr. 2005.
     
  33. Ho-Shin Cho, Jungchae Shin and Yutae Lee
    “Call blocking probability for heterogeneous and asymmetrical traffics in a TD-CDMA system”
    IEEE Communications Letters    , Vol. 8, No. 12, pp. 706-708,  Dec. 2004.
     
  34. Yutae Lee, Young Hwa Kim and Jae Doo Huh
    “Discrete-time Geo^X/G/1 queue with non-preemptive priority”
    Computers & Mathematics with Applications    , Vol. 46, pp. 1625-1632, Dec.2003.
     
  35. Chul Geun Park, Yutae Lee, Hae Chung, Geun Il Yu and Jong An Kim
    “Performance analysis of a dynamic bandwidth allocation scheme for improving the delay of the real time traffic in an EPON”
    Proceedings of the Korean Institute of Communication Sciences    , Vol. 28, No. 11B, pp.1023-1030, Nov. 2003.
     
  36. Yutae Lee and Kye-Sang Lee
    “Discrete-time Geo^X/G/1 queue with preemptive repeat different priority”
    QueueingSystems    , Vol. 44, No. 4, pp. 399-411, Aug. 2003.
     
  37. Yong Chang, Gang Uk Hwang and Yutae Lee
    “Performance analysis of packet data buffer in CDMA2000 radio access network supporting VPOP (Voice Precedence Over Packet Data)”
    Electronics Letters    , Vol. 39, No. 16, pp. 1212-1214, Aug. 2003.
     
  38. Yutae Lee
    “Stability condition of discrete-time Geo^X/G/1 queue with preemptive repeat priority”
    Journal of Applied Mathematics and Computing    , Vol. 12,No. 1-2, pp. 291-297, May 2003.
     
  39. Yutae Lee, Dong Hwan Han, Deok-Young Jeon and Seung Hwan Kim
    “Performance analysis of DBA algorithm for ATM-PON system”
    Proceedings of the Korean Institute of Communication Sciences    , Vol. 27, No.8C, pp. 803-811, Aug. 2002.
     
  40. Chul Geun Park, Dong Hwan han and Yutae Lee
    “Performance analysis of threshold based bandwidth allocation scheme for IP traffic on ATM networks”
    IEE Proceedings - Communications    , Vol. 149, No. 1, pp. 29-35, Feb. 2002.
     
  41. Yutae Lee and Bong Dae Choi
    “Queueing system with multiple delay and loss priorities for ATM networks”
    Information Sciences    , Vol. 138, pp. 7-29, Dec. 2001.
     
  42. Yutae Lee, Min Young Chung and Yoon Young An
    “Relationship between the buffer threshold and the link utilization in ABR services”
    Computer Communications    , Vol. 24, pp. 1341-1347, Aug. 2001.
     
  43. Yutae Lee
    “Discrete-time Geo^X/G/1 queue with preemptive resume priority”
    Mathematical and Computer Modelling    , Vol. 34, pp. 243-250, Jul. 2001.
     
  44. Doo Il Choi and Yutae Lee
    “Performance analysis of a dynamic priority queue for traffic control of bursty traffic in ATM networks”
    IEE Proceedings - Communications    , Vol. 148, No. 3, pp. 181-187, Jun. 2001.
     
  45. Yutae Lee and Dong Hwan Han
    “Effect of the number of active sources on ABR buffer size”
    Journal of Applied Mathematics and Computing    , Vol. 7,No. 3, pp. 629-641, Sep. 2000.
     
  46. Chul Geun Park, Tae Wook Chung and Yutae Lee
    “Delay performance analysis of signaling network functions in common channel signaling system”
    Proceedings of the Korean Institute of Communication Sciences    , Vol. 25, No.7, Jul. 2000.
     
  47. Doo Il Choi and Yutae Lee
    “Analysis of dynamic priority queue with applications in ATM networks”
    Journal of Applied Mathematics and Computing    , Vol. 7, No. 2, pp. 617-627, May 2000.
     
  48. Yutae Lee
    “Performance analysis for ATM network with both SVC and PVC connections”
    Electronics Letters    , Vol. 36, No. 1, pp. 99-100, Jan. 2000.
     
  49. Bong Dae Choi, Yutae Lee and Doo Il Choi
    “Geo^X1,Geo^X2/D/c HOL priority queueing system with random order selection within each priority class”
    Probability in the Engineering and Informational Sciences    , Vol. 12, No. 1,pp. 125-139, Jun. 1998.
     
  50. Bong Dae Choi, Doo Il Choi, Yutae Lee and Dan Keun Sung
    “Priority queueing system with fixed-length packet-train arrivals”
    IEE Proceedings - Communications    , Vol. 145, No. 2, pp.331-341, Jun. 1998.