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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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An Estimation Technique of Cell ID and DoA for a Mobile Relay Station Under a Multipath Channel

다중 경로 채널에서의 이동 릴레이의 셀 탐색 및 DoA 추정 방법

  • Pec, Rothna (School of Electric & Electronic Engineering, Chung-Ang University) ;
  • Kim, In Su (School of Electric & Electronic Engineering, Chung-Ang University) ;
  • Cho, Yong Soo (School of Electric & Electronic Engineering, Chung-Ang University)
  • Received : 2012.09.24
  • Accepted : 2012.12.27
  • Published : 2013.01.31
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Abstract

In this paper, a mobile relay station(MRS) for vehicles with a beamforming antenna is considered to increase the reliability of a transmission link, especially for the MRS at cell boundary. Cell searching and direction-of-arrival(DoA) estimation methods for an MRS with a uniform linear array(ULA) are proposed for a multipath environment in OFDM-based cellular systems. Performances of the proposed methods(Method1 and Method2) are evaluated by computer simulation with the standard profile of IEEE 802.16e.

본 논문에서는 빔포밍 안테나를 탑재한 이동 릴레이(MRS, Mobile Relay Station), 특히 셀 경계 근방에 위치한 이동 릴레이의 링크(link) 의 안정성을 향상시키는 방법에 대해 기술한다. OFDM 통신 방식 기반 시스템의 다중 경로 환경에서의 선형 어레이(Uniform Linear Array)를 이용한 셀 탐색 및 DoA(Direction of Arrival) 추정방법을 제안하였으며, 공간 상관 행렬 기반의 제 1 방법과 이중 차등 상관 행렬 기반의 제 2 방법의 성능을 모의실험을 통하여 평가하였다. 모의실험은 IEEE 802.16e 표준에 기반하였다.

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References

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