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Improved robustness for channel estimation without pilots for DVB-T2

机译:DVB-T2没有导频的情况下提高了信道估计的鲁棒性

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摘要

As most state-of-the-art terrestrial transmissions standards, DVB-T2 uses orthogonal frequency division multiplexing (OFDM) as modulation scheme. For performing channel estimation and equalization normally so-called frequency domain pilots are employed. As pilots are known information to the receiver, they do not carry any information and are thus overhead. Therefore, DVB-T2 also allows for a mode with nearly no frequency domain pilots, whereby the channel estimation is based on the data itself. This paper shows the high performance and throughput benefits of this pilot-free transmission and blind channel estimation technique while proposing an optimized algorithm.
机译:作为大多数最新的地面传输标准,DVB-T2使用正交频分复用(OFDM)作为调制方案。为了执行信道估计和均衡,通常采用所谓的频域导频。由于导频是接收机已知的信息,因此它们不携带任何信息,因此开销很大。因此,DVB-T2还允许一种几乎没有频域导频的模式,从而信道估计基于数据本身。本文展示了这种无导频传输和盲信道估计技术的高性能和吞吐量优势,同时提出了一种优化算法。

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