IMT-2000 외부회로 전력제어의 최적변수 및 성능 분석

Optimum Parameter and Performance Analysis of Outer Loop Power Control in IMT-2000

  • 이재성 (경북대학교 전자전기공학부) ;
  • 장영민 (덕성여자대학교 컴퓨터과학부) ;
  • 전기준 (경북대학교 전자전기공학부) ;
  • 임순용 (한국전자통신연구원)
  • 발행 : 2000.11.01

초록

In IMT-2000 systems, the outer loop dynamically adjusts the target SIR so that adequate performance in terms of the frame error rate(FER) and the true quality measure is achieved. This paper utilizes an analytic model lot outer loop power control(OLPC) adjusting the target SIR in IMT-2000. The analytic model is based on the discrete-time Markov chain as voice traffic SIR. It is described that the model can be used to find the optimum step size in voice traffic for fast fading environments. The optimum step size influences the performance of OLPC: As the step size decreases, the average target SIR increases and average FER decreases.

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