Performance Comparison of Coherent and Non-Coherent Detection Schemes in LR-UWB System

  • Kwon, Soonkoo (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Ji, Sinae (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Kim, Jaeseok (Department of Electrical and Electronic Engineering, Yonsei University)
  • 투고 : 2011.05.04
  • 심사 : 2012.03.15
  • 발행 : 2012.10.31

초록

This paper presents new coherent and non-coherent detection methods for the IEEE 802.15.4a low-rate ultra-wideband physical layer with forward error correction (FEC) coding techniques. The coherent detection method involving channel estimation is based on the correlation characteristics of the preamble signal. A coherent receiver uses novel iterated selective-rake (IT-SRAKE) to detect 2-bit data in a non-line-of-sight channel. The non-coherent detection method that does not involve channel estimation employs a 2-bit data detection scheme using modified transmitted reference pulse cluster (M-TRPC) methods. To compare the two schemes, we have designed an IT-SRAKE receiver and a MTRPC receiver using an IEEE 802.15.4a physical layer. Simulation results show the performance of IT-SRAKE is better than that of the M-TRPC by 3-9 dB.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Knowledge Economy (MKE)

참고문헌

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