Application of symbol avoidance in Reed–Solomon codes to improve their synchronization

Thokozani Shongwe (), A. J. Han Vinck () and Hendrik C. Ferreira ()
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Thokozani Shongwe: University of Johannesburg
A. J. Han Vinck: University of Duisburg-Essen
Hendrik C. Ferreira: University of Johannesburg

Telecommunication Systems: Modelling, Analysis, Design and Management, 2016, vol. 63, issue 1, No 7, 77-88

Abstract: Abstract In our previous work we introduced a method for avoiding/excluding some symbols in Reed–Solomon (RS) codes, called symbol avoidance. In this paper, we apply the symbol avoidance method to make synchronization of RS encoded data more effective. We avoid symbols in a RS code and then perform conventional frame synchronization on RS encoded data by appending sync-words on the data. The symbols in the RS code are avoided according to the sync-word used, such that the sync-word has very low probability of being found in the RS codewords, where it was not inserted. Therefore, for different sync-words, different symbols need to be avoided in the RS code. The goal here is to reduce the probability of mistaking data for the sync-word in the RS encoded framed data. Hence, the probability of successful synchronization is improved. Not only does our symbol avoidance code improve probability of successful synchronization, it also reduces the overall amount of redundancy required when the channel is very noisy.

Keywords: Reed–Solomon codes; Frame synchronization; Sync-words (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s11235-015-9974-z

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