Benaddi, Tarik and Poulliat, Charly and Boucheret, Marie-Laure and Gadat, Benjamin and Lesthievent, Guy Design of Unstructured and Protograph-Based LDPC Coded Continuous Phase Modulation. (2014) In: IEEE International Symposium on Information Theory - ISIT 2014, 29 June 2014 - 4 July 2014 (Honolulu, United States).
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(Document in English)
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Official URL: http://dx.doi.org/10.1109/ISIT.2014.6875180
Abstract
In this paper, we derive an asymptotic analysis and optimization of coded CPM systems using both unstructured and protograph-based LDPC codes ensembles. First, we present a simple yet effective approach to design unstructured LDPC codes : by inserting partial interleavers between LDPC and CPM, and allowing degree-1 and degree-2 variable nodes in a controlled pattern, we show that designed codes perform that can operate very close to the maximum achievable rates. Finally, the extension to protograph based codes is discussed. We provide some simple rules to design good protograph codes with good threshold properties.
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