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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Adaptive Multi-Antenna Channel Estimation Scheme for Uplink Multiuser Environments

다중사용자 상향링크 환경을 위한 적응형 다중안테나 채널추정 기법

  • Kim, Kyung Jun (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Choi, Kyung Jun (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Jinnyeong (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Kim, Kwang Soon (School of Electrical and Electronic Engineering, Yonsei University)
  • Received : 2015.06.15
  • Accepted : 2015.06.29
  • Published : 2015.07.31
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Abstract

In this letter, an adaptive multi-antenna channel estimation scheme is proposed for uplink multiuser environments such as LTE-A systems to accurately estimate time-varying channels within an affordable complexity. It is confirmed that the proposed channel estimator can achieve accurate channel tracking performance even when various time-varying channel environments and traffic patterns are provided.

본 논문은 LTE-A 시스템과 같은 상향링크 다중사용자 환경에서 시변채널을 적절한 복잡도와 좋은 성능으로 추정할 수 있는 적응형 다중안테나 채널추정 기법을 제안하였다. 제안하는 채널추정기가 다양한 시변채널 환경 및 트래픽 패턴에서도 좋은 채널 트래킹 성능을 제공할 수 있음을 보인다.

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References

  1. D. Schafhuber, G. Matz, and F. Hlawatsch, "Adaptive Wiener filters for time-varying channel estimation in wireless OFDM systems," in Proc. IEEE ICASSP, vol. 4, pp. 688-691, Hong Kong, Apr. 2003.
  2. 3GPP, Evolved Universal Terrestrial Radio Access, Physical channels and modulation, 3GPP TS 36.211 v11.0.0, Oct. 2012.
  3. K. J. Kim, K. J. Choi, and K. S. Kim, "DFT-based channel estimation scheme for the uplink of LTE-A systems," J. KICS, vol. 40, no. 2, pp. 307-309, Feb. 2015. https://doi.org/10.7840/kics.2015.40.2.307

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