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Communication Dans Un Congrès Année : 2019

Binary Root Protograph LDPC Codes for CSK Modulation toIncrease the Data Rate and Reduce the TTD

Résumé

New generation of GNSS systems seeks to provide new features in order to create or to improve their currents services. Between those possible features; the increase of the data rate is necessary in order to to provide services such as authentication, precise positioning or reduce the Time-To-First-Fix (TTFF). On the other hand, the data availability in harsh environment suggest the need of error correcting technologies. Then, based on previous works over the Code-Shift Keying (CSK) modulation and in Root Protograph LDPC code to reduce the TTFF, in this paper, it is presented the optimization of Root Protograph LDPC codes for the CSK modulation in a Bit-Interleaved Coded Modulation context and the optimization of Root Protograph LDPC codes for the CSK modulation in BitInterleaved Coded Modulation Iterative Decoding context. Both optimization where base on the Protograph EXIT chat algorithm, providing promising results.
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Dates et versions

hal-02976619 , version 1 (23-10-2020)

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Lorenzo Ortega, Charly Poulliat, Marie-Laure Boucheret, Marion Aubault-Roudier, Hanaa Al Bitar-El Natour. Binary Root Protograph LDPC Codes for CSK Modulation toIncrease the Data Rate and Reduce the TTD. 32nd International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2019), Sep 2019, Miami, Florida, United States. pp.1020-1038, ⟨10.33012/2019.17040⟩. ⟨hal-02976619⟩
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