Algebraic method for blind recovery of punctured convolutional encoders from an erroneous bitstream

Mélanie Marazin 1 Roland Gautier 1, * Gilles Burel 1
* Corresponding author
1 Lab-STICC_UBO_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance, UBO - Université de Brest
Abstract : To enhance the quality of transmissions, all digital communication systems use error-correcting codes. By introducing some redundancy in the informative binary data stream, they allow one to better withstand channel impairments. The design of new coding schemes leads to a perpetual evolution of the digital communication systems and, thus, cognitive radio receivers have to be designed. Such receivers will be able to blind estimate the transmitter parameters. In this study, an algebraic method dedicated to the blind identification of punctured convolutional encoders is presented. The blind identification of such encoders is of great interest, because convolutional encoders are embedded in most digital transmission systems where the puncturing principle is used to increase the code rate to reduce the loss of the information data rate because of the redundancy introduced by the encoder. After a brief recall of the principle of puncturing codes and the construction of the equivalent punctured code, a new method dedicated to the blind identification of both the mother code and the puncturing pattern is developed when the received bits are erroneous. Finally, case studies are presented to illustrate the performances of our blind identification method.
Complete list of metadatas

Cited literature [22 references]  Display  Hide  Download

https://hal.univ-brest.fr/hal-00714044
Contributor : Roland Gautier <>
Submitted on : Tuesday, July 3, 2012 - 2:15:55 PM
Last modification on : Thursday, December 19, 2019 - 1:29:11 AM
Long-term archiving on: Thursday, October 4, 2012 - 2:54:25 AM

File

2012_IET_SP_VHAL.pdf
Files produced by the author(s)

Identifiers

Citation

Mélanie Marazin, Roland Gautier, Gilles Burel. Algebraic method for blind recovery of punctured convolutional encoders from an erroneous bitstream. IET Signal Processing, Institution of Engineering and Technology, 2012, 6 (2), pp.122-131. ⟨10.1049/iet-spr.2010.0343⟩. ⟨hal-00714044⟩

Share

Metrics

Record views

572

Files downloads

681