정보와 통신 (Information and Communications Magazine)

한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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EXIT 차트분석을 이용한 SC-MMSE기반 반복수신기의 성능 증대

Improving Iterative Detection and Decoding Based on SC-MMSE with EXIT Analysis

  • 발행 : 2007.12.30
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초록

This paper aims to improve the design of iterative detection and decoding(IDD) based on the soft interference cancellation with minimum mean squared error(SC-MMSE) detector, which shows low performance compared to the maximum a posteriori(MAP) detector. By means of extrinsic information transfer(EXIT) chart analysis, such low performance may be attributed to that the "pure"(original) turbo principle is not always best for IDD. Thus, we propose a new IDD architecture based on the SC-MMSE detector which uses new a priori information. Simulation results show that the performance of the proposed IDD is very close to that of IDD based on the MAP detector.

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참고문헌

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