Convolutional Codes for Network-Error Correction

Details Convolutional Codes for Network-Error Correction Convolutional Codes for Network-Error Correction

2009-02-24

arxiv.org/abs/0902.4177v3

Computer Science

Information Theory

10 pages, 5 figures; Revised version; A shortened version of this paper is to appear in the proceedings of GlobeComm 2009

Scientific paper

In this work, we introduce convolutional codes for network-error correction in the context of coherent network coding. We give a construction of convolutional codes that correct a given set of error patterns, as long as consecutive errors are separated by a certain interval. We also give some bounds on the field size and the number of errors that can get corrected in a certain interval. Compared to previous network error correction schemes, using convolutional codes is seen to have advantages in field size and decoding technique. Some examples are discussed which illustrate the several possible situations that arise in this context.

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