FFH系统中对抗部分频带干扰的BICM-MD-ID方案

2010 International Conference on Wireless Communications & Signal Processing (WCSP) Pub Date : 2010-11-11 DOI:10.1109/WCSP.2010.5632008

J. Dai, D. Guo, Bangning Zhang

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引用次数: 3

摘要

针对部分频带干扰下LDPC编码的FFH/MFSK系统，提出了一种具有分集的迭代译码方案。性能增益是通过解码器和解调器之间的软信息交换获得的。采用外部信息传递(EXIT)图对迭代过程进行研究，表明系统收敛速度快。仿真结果表明，该方案优于传统的FFH/BFSK系统，且增益随干扰概率的增加而增加。此外，在实际系统中，应慎重选择适当的调制顺序。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A BICM-MD-ID scheme in FFH system for combatting partial-band interference

An iterative decoding scheme with diversity is proposed for LDPC coded FFH/MFSK system under partial-band interference. The performance gain is obtained by soft-information exchange between demodulator and decoder. Extrinsic information transfer (EXIT) chart is employed to study the iterative procedure, which indicates that the convergence speed of the system is fast. The simulation results show the presented scheme outperforms traditional FFH/BFSK system, and the gain increases as the jamming probability increases. In addition, a moderate modulation order should be chose carefully in practical system.

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2010 International Conference on Wireless Communications & Signal Processing (WCSP)

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