한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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LOS 환경에서 CDMA 기지국 배치를 위한 Path Loss Model의 영향

Effect of Path Loss Models for CDMA Base Station Deployment in LOS Environments

  • 민승욱 (상명대학교 컴퓨터과학부)
  • 투고 : 2010.08.15
  • 심사 : 2010.12.16
  • 발행 : 2011.01.31
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초록

CDMA 시스템에서 기지국 용량과 배치는 외부간섭 이동단말 (out-of-cell mobile stations) 에 의한 상향 간섭에 크게 영향을 받는다. 외부간섭 이동단말로부터 전파감쇄의 정확한 예측은 주어진 서비스 품질 (QOS)를 충족시키기 위하여 필요한 장비를 최소화하는 시스템 설계에 필수적이다. 정확하지 않은 예측은 더 많은 기지국의 설치를 요구하는 시스템 설계를 하게 한다. 예측 정확도에 따른 필요 장비의 수를 정량화하기 위하여, 본 논문은 고속도로나 도심거리 (street canyon)와 같은 LOS (line of sight) 지역에서의 시스템 설계 요소에 대하여 살펴본다.

Cell Capacity and cell layout are strongly dependent on the up-link interference caused by out-of-cell mobiles. Accurate prediction of the propagation path loss from out-of-cell mobiles is essential to achieve system designs that minimize the infrastructure required for a given quality of service (QOS). Less accurate predictions can be expected to yield designs requiring the use of a greater number of base stations. In order to quantify the dependence of infrastructure on prediction accuracy, this paper considers the cellular systems, LOS (line of sight) cells along a road or highway.

키워드

참고문헌

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