Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Iterative Phase Estimation based on Turbo Code for DVB-RCS systems

DVB-RCS 터보코드 기반의 반복 위상 추정 기법

  • Ryu, Joong-Gon (Electronic Engineering Department, Konkuk University) ;
  • Heo, Jun (Electronic Engineering Department, Konkuk University) ;
  • Kim, Pan-Soo (Global Wireless Technology Research Group, ETRI) ;
  • Oh, Deock-Gil (Global Wireless Technology Research Group, ETRI) ;
  • Lee, Ho-Jin (Global Wireless Technology Research Group, ETRI)
  • 류중곤 (건국대학교 전자공학과) ;
  • 허준 (건국대학교 전자공학과) ;
  • 김판수 (한국전자통신연구원 광역무선기술연구그룹) ;
  • 오덕길 (한국전자통신연구원 광역무선기술연구그룹) ;
  • 이호진 (한국전자통신연구원 광역무선기술연구그룹)
  • Published : 2005.11.26
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Abstract

In this paper, we introduce the efficient carrier phase estimating algorithm collaborate with the channel decoder of turbo coded QPSK modulation for mobile DVB-RCS systems. At low SNR, the phase estimation using soft information of turbo decoder is able to improve power efficiency because of achieving the good synchronization. We investigate performance of external single estimator and internal multiple estimator in the PSP (Per Survivor Processing) manner over AWGN channel. For phase estimation, the LMS (Least Mean Square) scheme is considered. Three different APP-based methods are also proposed.

Keywords