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  • 學位論文

多階層聯結之斲刪迴旋碼

Multilevel Concatenated Punctured Convolutional Codes

指導教授 : 馬尚智

摘要


在本篇論文中,我們提出一個新的多階層陪集碼架構。外部碼方面為一組低碼率的迴旋碼為母碼,與利用此母碼及斲刪之技術建構出高碼率的斲刪迴旋碼為主。這些斲刪迴旋碼皆可利用基於母碼架構下的腓特比解碼器解碼。內部碼為區段碼之子集分割。與母碼比較,此新架構可穫得較高之編碼增益。

並列摘要


We propose a novel design of multilevel coset codes. We use a low-rate convolutional code as a mother code, and generate some high-rate punctured convolutional codes from the mother code. By using these punctured convolutional codes as ther outer codes, a single Viterbi decoder of ther mother code is needed to perform the multistage decoding. The inner codes are constructed based on set partitioning of a binary linear block code. The simulation results show that the proposed coding scheme outperforms the original mother code.

參考文獻


[1] S. Lin and D. J. Costello, Error Control Coding. Prentice Hall, 2004.
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[5] G. D. Forney, Jr., “Coset codes I: Introduction and geometrical classification,” IEEE Trans. Inform. Theory, vol. IT-34, pp. 1123 – 1151, 1988
[8] J.L. Massey, “Threshold decoding,” MIT Press, Cambridge, Mass.,1963

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