Journal of Korean Society of Industrial and Systems Engineering (산업경영시스템학회지)

Society of Korea Industrial and System Engineering (한국산업경영시스템학회)
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Performance Analysis of a Cellular Mobile Communication System with Hybrid Guard Channels

Hybrid 가드채널이 있는 이동통신시스템이 성능 평가

  • Hong, Sung-Jo (Department of Industrial and Systems Engineering, Dongguk University) ;
  • Choi, Jin-Yeong (School of Advanced Industrial Engineering, Kyonggi University)
  • 홍성조 (동국대학교 산업시스템공학과) ;
  • 최진영 (경기대학교 첨단산업공학부)
  • Published : 2006.12.31
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Abstract

We analyze a voice/data integrated traffic model of the cellular mobile communication system with hybrid guard channels for voice and handoff calls. In a multi-service integrated wireless environment, quality of service guarantee is crucial for smooth transportation of real time information. Real time voice traffic requires a guaranteed upper bounded on both delay and packet error rate, whereas data traffic does not. Voice traffic has high transmission priority over data packets. Thus one of the important problems is the design of admission control schemes which can efficiently accommodate the differential quality of service requirements. In this paper, a hybrid guard channel scheme is considered in which arriving calls are assigned channels as long as the number of busy channels in the cell is below a predetermined first threshold. When the number of busy channels reaches the first threshold, new originating data calls are queued in the infinite data buffer. Then reaches second threshold, only handoff calls are assigned the remaining channels and new originating voice calls are blocked. We evaluate the system by a two-dimensional Markov chain approach and generating function method and obtain performance measures included blocking probability and forced termination probability.

Keywords

References

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