The Transactions of the Korean Institute of Electrical Engineers D (대한전기학회논문지:시스템및제어부문D)

The Korean Institute of Electrical Engineers (대한전기학회)
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Erlang Capacity and Call Blocking Probability of CDMA Hierarchical Cellular Systems with Soft Handoff

소프트 핸드오프를 갖는 CDMA 계층구조 셀룰러 시스템의 Erlang 용량과 호 차단확률

  • 성봉훈 (명지대 정보통신공학과) ;
  • 오현석 (Interdigital Communication Corp.) ;
  • 한재충 (명지대 정보통신공학과·)
  • Published : 2000.08.01
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Abstract

This paper analyzes interference power, Erlang capacity, the number of handoff occurrences, and call blocking probability with respect to the cell radius, the soft handoff region, and the mobile's velocity in a CDMA hierarchical cellular system. The microcell cellular system has the higher Erlang capacity than the macrocell cellular system. However, the microcell cellular system, which has a high system capacity through frequency reuse has the call blocking probability higher than macrocell cellular system. Also the interference power and the call blocking probability are decreased with the operation of soft handoff. Therefore, this paper presents the optimization of soft handoff region so as to maximize system's Erlang capacity with the low the call blocking probability according to mobile's velocity in the CDMA hierarchial cellular system.

Keywords

References

  1. K. Takeo, 'Improvement of Coverage Probability by Subband Scheme in CDMA Macro-micro Cellular Systemance Analysis for Cellular Mobile Radio Telephone Systems with Prioritized and Nonprioritized Handoff Procem,' IEEE Personal , Indoor and Mobile Radio Communication. Vol. 1, pp. 93-97, Oct. 1996 https://doi.org/10.1109/PIMRC.1996.567523
  2. D. Hong and S.S. Rappaport, 'Traffic Model and Perfordures,' IEEE Trans. on Veh. Technol. Vol. VT-35, No. 3, pp. 77-92, Aug. 1986
  3. R. Guerin, 'Queueing-blocking system with two arrival streams and guard channels,' IEEE Trans. on Comm. Vol. 36, No. 2, Feb. 1988 https://doi.org/10.1109/26.2745
  4. S.Tekinay and B.Jabbari,'A Measurement-Based Prioritization Scheme for Handover in Mobile Cellular Networks,' IEEE Comm. Mag.. Vol 29., No. 11, Nov. 1991
  5. Lon-Rong Hu, Stephen S. Rappaport 'Personal Communication System Using Multiple Hierarchical Cellular Overlays' IEEE Journal on Selected Areas in Communications. Vol. 13, No. 2, pp. 406-415, Feb., 1995 https://doi.org/10.1109/49.345885
  6. Bijan Jabbari and Woldemar F. Fuhrmann 'Teletraffic Modeling and Analysis of Flexible Hierarchical Cellular Networks with Speed-Sensitive Handoff Strategy' IEEE Journal on Selected Areas in Communications, Vol. 15, No. 8, pp. 1539-1548, Oct., 1997 https://doi.org/10.1109/49.634792
  7. Daniel Wong and Teng Joon Lim 'Soft Handoffs in CDMA Mobile Systems' IEEE Personal Communications, Vol. 4, pp. 6-17, Dec., 1997 https://doi.org/10.1109/98.637378
  8. A. M. Viterbi, A. J. Viterbi, 'Erlang Capacity of a Power Controlled CDMA System,' IEEE Journal on Selected Areas in Communications, Vol. 11, pp. 892-899, Aug. 1993 https://doi.org/10.1109/49.232298
  9. Andrew J. Viterbi, CDMA : Principles of Spread Spectrum Communication, Addison-Wesley, 1995
  10. TIA/EIA Interim Standard, Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System, July 1993
  11. Seog Ku Lim, Hee-Seon Jang, Jea Hoon Yoo, Yoon-Ju Lee,'Traffic Modeling in Cellular Mobile Communications' 한국통신학회 논문지, 제 20권, 제 6호, pp 1495-1505, 6월 1995