Analysis of Performance and Availability of Mobile Cellular Systems

모바일 셀룰러 시스템의 성능 및 가용도 분석

  • 노철우 (신라대학교 컴퓨터정보공학부) ;
  • 김경민 (신라대학교 컴퓨터 정보공학부)
  • Published : 2006.06.01

Abstract

To obtain realistic composite performance and availability measures, one should consider performance changes that are associated with failure recovery behavior. In this paper we address two modeling approaches, exact composite and approximate, and develop SRN models for these approaches. The former approach is to combine the performance and availability models and yields accurate results but generally faces largeness problem. To avoid the problem, the two level hierarchical model is developed. The upper level model describes the failure and repair behavior of the system and the lower level captures the pure performance aspect of the system, channel allocation and service. It models guard channel and preemptive handoff scheme. As numerical results, blocking and dropping probabilities are given for new call and handoff call, respectively.