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

  • 제31권8A호
  • /
  • Pages.752-759
  • /
  • 2006
  • /
  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

광대역 이동통신 환경에서 초 분해능 방향 탐지 알고리즘의 성능 비구 분석

A Comparative Performance Analysis of High Resolution Direction Finding Algorithms in Wideband Mobile Environments

  • 윤영호 (한국항공대학교 항공전자 및 정보통신공학부) ;
  • 박윤옥 (한국전자통신연구원 이동통신연구단 패킷모뎀연구팀) ;
  • 박형래 (한국항공대학교 항공전자 및 정보통신공학부)
  • 발행 : 2006.08.01
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초록

본 논문에서는 광대역 이동통신 환경에서 대표적인 초 분해능 방향 탐지 알고리즘들의 도래각 추정 성능을 비교, 분석한다. 먼저, 이동통신 환경에서 발생하는 angular spread 현상을 고찰하고 광대역 OFDMA 신호의 벡터채널 모델을 유도한다. 또한, OFDMA 스마트 안테나 시스템을 위한 방향 탐지 시스템의 구조를 제시하고 광대역이동통신 환경에서 WiBro 시스템을 목표 시스템(target system)으로 설정하여 초 분해능 방향 탐지 알고리즘의 도래각 추정 성능을 시뮬레이션을 통해 비교, 분석한다.

In this paper, the performances of representative high resolution direction finding algorithms are evaluated and compared in wideband mobile environments. The angular spread phenomenon in mobile environments is first investigated and then a vector channel model for wideband OFDMA signals is derived. A direction finding system architecture for OFDMA smart antenna systems is proposed and finally the performances of high resolution direction finding algorithms are evaluated in wideband mobile environments by taking the WiBro system as a target system.

키워드

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