Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Adaptive Turbo System

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  • Choi, Hyun-Woo (School of Electrical Engineering and Computer Sciences and INMC, Seoul National University) ;
  • Lee, Jae-Hong (School of Electrical Engineering and Computer Sciences and INMC, Seoul National University)
  • 최현우 (서울대학교 공과대학 전기컴퓨터공학부 뉴미디어통신공동연구소) ;
  • 이재홍 (서울대학교 공과대학 전기컴퓨터공학부 뉴미디어통신공동연구소)
  • Published : 2006.06.21
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Abstract

In this paper, we propose an adaptive turbo system for a varying channel between being frequency-flat and frequency-selective. The proposed system unites a turbo code and a turbo equalization and selects one of two algorithms adaptively to the channel variation with the feedback information from the receiver. The performance of the proposed system in varying channel is evaluated by computer simulation when the feedback delay exists. It is shown that when the feedback delay is moderate, the proposed system outperforms both the conventional turbo code system and turbo equalization system without increasing the complexity.

Keywords