소프트 핸드오프를 갖는 CDMA 계층구조 셀룰러 시스템의 Erlang 용량과 호 차단확률

Erlang Capacity and Call Blocking Probability of CDMA Hierarchical Cellular Systems with Soft Handoff

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

초록

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.

키워드

참고문헌

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