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應用於交錯嘎比杜林碼解碼之改良線性移位暫存器合成演算法
Thesis

應用於交錯嘎比杜林碼解碼之改良線性移位暫存器合成演算法

徐源岱
Masters, 國立清華大學, 通訊工程研究所
2013

Abstract

網路編碼 錯誤控制 秩度量 嘎比杜林碼 network coding error control rank metric Gabidulin codes
Gabidulin codes and interleaved Gabidulin codes are rank-metric codes mainly used in network error correction and distributed storage. The current decoding algorithm for both codes relies on linearized shift register (LSR) synthesis algorithm. The advantage of such algorithm is that it can decode error words beyond the decoding radius. However, it also suffers from a large decoding delay as the interleaved degree increases. In this thesis, we try to improve the LSR synthesis algorithm in such a way that the corresponding decoding algorithm for interleaved Gabidulin codes incurs no extra decoding delay and can be executed in real time. We then devise a simple network model for testing the performance of our decoding algorithm versus the traditional one. Simulation shows that our algorithm only comes with a little performance loss.

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