Error Correction for Differential Linear Network Coding in Slowly-Varying Networks
Conference: SCC 2015 - 10th International ITG Conference on Systems, Communications and Coding
02/02/2015 - 02/05/2015 at Hamburg, Germany
Proceedings: SCC 2015
Pages: 6Language: englishTyp: PDF
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Authors:
Puchinger, Sven; Fischer, Robert F. H.; Bossert, Martin (Institute of Communications Engineering, Ulm University, Germany)
Cyran, Michael; Huber, Johannes B. (Institute for Information Transmission, University of Erlangen-Nuremberg, Germany)
Abstract:
Differential linear network coding (DLNC) is a precoding scheme for information transmission over random linear networks. By using differential encoding and decoding, the conventional approach of lifting, required for inherent channel sounding, can be omitted and in turn higher transmission rates are supported. However, the scheme is sensitive to variations in the network topology. In this paper, we derive an extended DLNC channel model which includes slow network changes. Based on this, we propose and analyze a suitable channel coding scheme matched to the situation at hand using rank-metric convolutional codes.