Construction and redundancy of codes for correcting deletable errors

04/29/2018

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by   Ghurumuruhan Ganesan, et al.

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Consider a binary word being transmitted through a communication channel that introduces deletable errors where each bit of the word is either retained, flipped, erased or deleted. The simplest code for correcting all possible deletable error patterns of a fixed size is the repetition code whose redundancy grows linearly with the code length. In this paper, we relax this condition and construct codes capable of correcting nearly all deletable error patterns of a fixed size, with redundancy growing as a logarithm of the word length.