DVB-S2的迭代解调

2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications Pub Date : 2005-09-11 DOI:10.1109/PIMRC.2005.1651909

T. Clevorn, F. Oldewurtel, S. Godtmann, P. Vary

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引用次数: 6

摘要

我们提出了迭代解调在DVB-S2接收机上的应用。通过LDPC信道码解码器的外部信息反馈改进了解调。模拟结果表明，考虑到香农极限的差距，该增益约为0.3 dB。额外需要的计算需求可以忽略不计，接收器只需要稍微修改。在未修改发射机的情况下，所提出的方案完全符合标准

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Iterative demodulation for DVB-S2

We propose the application of iterative demodulation at a DVB-S2 receiver. The demodulation is improved by feedback of extrinsic information from the decoder of the LDPC channel code. The presented simulation results show an enhancement of about 0.3 dB, which is notable taking the gap to the Shannon limit into account. The additionally required computational demand is negligible and the receiver only needs to be slightly modified. With the unmodified transmitter the proposed scheme is completely standard compliant

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来源期刊

2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications

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