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The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Improving Iterative Detection and Decoding Based on SC-MMSE with EXIT Analysis

EXIT 차트분석을 이용한 SC-MMSE기반 반복수신기의 성능 증대

  • Published : 2007.12.30
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Abstract

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.

Keywords

References

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