Coding for informed decoders
Coding for informed decoders
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DOI：
10.1109/isit.2001.936065
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发表时间：
2001-06
期刊：
影响因子：
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通讯作者：
M. V. Dijk;S. Baggen;Tolhuizen Ludovicus Marinus Ge
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文献类型：
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作者：
M. V. Dijk;S. Baggen;Tolhuizen Ludovicus Marinus Ge
我们考虑对产生差错的信道进行编码，其中旁信道(编码器未知)可能向解码器通知在传输的码字中编码的信息的一部分。目标是设计一种在解码器知道某些信息符号的情况下提高纠错能力的码。这样一种形式的信道编码，我们称之为“用于信息解码器的编码”。一种可能的应用是在光学介质上的地址检索领域。光学介质上的扇区地址是由纠错码保护的报头的一部分。在许多情况下，当前扇区的许多报头信息可以从先前读取的扇区和目录中推断出来。将用于知情解码器的编码应用于扇区报头保护允许可靠的本地地址检索，这在写入期间尤其重要。我们描述了信息解码器的一般概念，并给出了两种信息解码器的编码结构。
We consider coding for a channel producing errors, where a side-channel (not known to the encoder) possibly informs the decoder about a part of the information that is encoded in the transmitted codeword. The objective is to design a code of which the correction power is enhanced if some information symbols are known to the decoder. Such a form of channel coding we call "coding for informed decoders". A possible application is in the field of address retrieval on optical media. The sector address on optical media is part of a header which is protected by an error correcting code. Under many circumstances much of the header information of the current sector can be inferred from the previously read sectors and the table of contents. The application of coding for informed decoders to sector header protection allows for reliable local address retrieval, which is especially important during writing. We describe the general concept, and provide two constructions for coding for informed decoders.