산업공학 (IE interfaces)

  • 제20권2호
  • /
  • Pages.216-226
  • /
  • 2007
  • /
  • 1225-0996(pISSN)
  • /
  • 2234-6465(eISSN)
대한산업공학회 (Korean Institute of Industrial Engineers)
권호 표지

CDMA망에서 시스템 용량과 트래픽 부하의 변화를 반영한 핸드오프 영역 비율에 대한 성능분석

Performance Analysis of Soft Handoff Region Ratio in CDMA System Considering System Capacity and Traffic Load

  • 정성환 (서울대학교 산업공학과) ;
  • 홍정완 (한성대학교 산업시스템공학과) ;
  • 이상천 (경상대학교 산업시스템공학부) ;
  • 이창훈 (서울대학교 산업공학과)
  • Jung, Sung-Hwan (Department of Industrial Engineering, Seoul National University) ;
  • Hong, Jung-Wan (Department of Industrial and Systems Engineering, Hansung University) ;
  • Lee, Sang-Cheon (Division of Industrial and Systems Engineering, ERI, Gyeongsang National University) ;
  • Lie, Chang-Hoon (Department of Industrial Engineering, Seoul National University)
  • 투고 : 20061000
  • 심사 : 20070300
  • 발행 : 2007.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In code-division multiple-access (CDMA) systems with soft handoff, mobile station (MS) within soft handoff region can use multiple radio channels and receive their signals from multiple base stations (BSs) simultaneously. In this paper, the effects of soft handoff region ratio (SHRR) on reverse link of a CDMA cellular system are analytically investigated. In order to analyze the network performance and quality of service (QoS) perceived by users more realistically, both the soft capacity increasing factor and the traffic load variation affected by SHRR are jointly considered and a two-dimensional continuous time Markov chain (CTMC) model is built. In the numerical example, it is observed that the optimal guard channel exists according the variations of the traffic load and propagation conditions when the proper value of SHRR is determined.

키워드

참고문헌

  1. Ahmed, W. K. M. (2002), Simulation and Performance Evaluation of IS-95 Handoff Algorithms, Bell Labs Technical Journal, 7(1), 165-185 https://doi.org/10.1002/bltj.19
  2. Avidor, D., Mukherjee, S., and Hedge, N. (2006), On the Impact of Soft Handoff Threshold and Maximum Size of the Active Group on BS Transmit Power in the UMTS System, IEEE Transactions on Vehicular Technology, 55(2), 597-605 https://doi.org/10.1109/TVT.2005.863356
  3. Chun, H. G., Kwon, O. J., and Kang, C. E. (2001), Effects of Soft Handoff Region Ratio on the Reverse Link Capacity of a DS-CDMA Cellular System, The Journal of Korean Institute of Communication Science, 26(11B), 1534-1539
  4. Guerin, R. (1988), Queueing-Blocking System with Two Arrival Streams and Guard Channels, IEEE Transactions on Communications, 36(2), 153-163 https://doi.org/10.1109/26.2745
  5. Hong, S. J. and Lu, I. T. (2001), Soft Handoff Algorithm Parameter Optimization in Various Propagation Environments, IEEE Vehicular Technology Conference Proceedings, 2549-2553
  6. Jovanovic, V. M. and Cuberovic, D. (2000), Theoretical and Experimental Analysis of the New Soft Handoff Algorithm for CDMA Systems, IEEE Vehicular Technology Conference Proceedings, Tokyo. 1757-1762
  7. Kim, D. K. and Sung, D. K. (1999), Characterization of Soft Handoff in CDMA Ssysterns, IEEE Transactions on Vehicular Technology, 48(4), 1195-1202 https://doi.org/10.1109/25.775368
  8. Kishore, S., Greenstein, L. J., Poor, H. V., and Schwartz, S. C. (2005), Soft Handoff and Uplink Capacity in a Two-Tier CDMA System, IEEE Transactions on Wireless Communications, 4(4), 1297-1301 https://doi.org/10.1109/TWC.2005.850319
  9. Lee, C. C. and Steele, R. (1998), Effect of Soft and Softer Handoffs on CDMA System Capacity, IEEE Transactions on Vehicular Technology, 47(3), 830-841 https://doi.org/10.1109/25.704838
  10. Lin, Y. B., Mohan, S., and Noerpel, A. (1994), Queueing Priority Channel Assignment Strategies for PCS Hand-Off and Initial Access, IEEE Transactions on Vehicular Technology, 43(3), 704 -712 https://doi.org/10.1109/25.312778
  11. Liu, Z., Wang, Y, and Yang, D. (2003), Effect of Soft Handoff Parameters and Traffic Loads on Soft Handoff Ratioin CDMA Systems, International Conference on Communication Technology Proceedings, 2003, 782-785
  12. Ma, X., Cao, Y., Liu, Y., and Trivedi, K. S. (2006), Modeling and Performance Analysis for Soft Handoff Schemes in CDMA Cellular Systems, IEEE Transactions on Vehicular Technology, 55(2), 670-680 https://doi.org/10.1109/TVT.2005.863347
  13. Narrainen, R. P. and Takawira, F. (2001), Performance Analysis of Soft Handoff in CDMA Cellular Networks, IEEE Transactions on Vehicular Technology, 50(6), 1507-1517 https://doi.org/10.1109/25.966581
  14. Su, S. L., Chen, J. Y., and Huang, J. H. (1996), Performance Analysis of Soft Handoff in CDMA Cellular Networks, IEEE Journal on Selected Areas in Communications, 14(9), 1762-1769 https://doi.org/10.1109/49.545699
  15. Virerbi, A. J., Viterbi, A. M., Gilhousen, K. S., and Zehavi, E. (1994), Soft Handoff Extends CDMA Cell Coverage and Increases Reverse Link Capacity, IEEE Journal on Selected Areas in Communications, 12(8), 1281-1288 https://doi.org/10.1109/49.329346
  16. Wong, D. and Lim, T. J. (1997), Soft Handoffs in CDMA Mobile Systems, IEEE Personal Communications, 4(6), 6-17
  17. Zhang, N. and Holtzman, J. M. (1998), Analysis of a CDMA Soft-Handoff Algorithm, IEEE Transactions on Vehicular Technology, 47(2), 710-714 https://doi.org/10.1109/25.669108