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Guilloud

Frederic Guilloud, Brest FR

Patent application numberDescriptionPublished
20100107031MULTIPLE-INPUT-MULTIPLE-OUTPUT TRANSMISSION USING NON-BINARY LDPC CODING - A wireless communication system constructed by a MIMO antenna system and transmitting information from a transmitter having Nt number of transmitting antennas to a receiver 04-29-2010

Frederic Guilloud, Brest Cedex FR

Patent application numberDescriptionPublished
20090287981Construction of Parity-Check Matrices for Non-Binarys LDPC Codes - A parity check matrix construction method for constructing a non-binary parity check matrix defining a non-binary LDPC code. In particular, a parity check matrix construction method for setting codewords able to stably give a superior decoding performance is provided. For this reason, the non-binary non-zero elements are selected so that the determinants of the partial matrices corresponding to the cycles in the parity check matrix do not become 0. Due to this, a non-binary parity check matrix able to give large weight codewords is constructed.11-19-2009

Frédéric Guilloud, Plouzane FR

Patent application numberDescriptionPublished
20110161785METHOD FOR TRANSMITTING A DIGITAL SIGNAL BETWEEN AT LEAST TWO TRANSMITTERS AND AT LEAST ONE RECEIVER, USING AT LEAST ONE RELAY, AND CORRESPONDING PROGRAM PRODUCT AND RELAY DEVICE - A method is provided for transmitting a digital signal between at least two transmitters and at least one receiver, using a concatenation of at least two codes. The method includes a first encoding step, in the transmitters, which outputs at least two first code words; a first transmission step of the first code words, via at least two distinct transmission channels; a receiving step, in at least one relay device, of at least two of the first code words, known as intermediate code words; a step of intertwining at least one part of the bits of the intermediate code words that outputs the intertwined bits; a second step of encoding the intertwined bits, in the relay(s), which outputs at least one second code word, taking into consideration the intermediate code words; a second step of transmitting the second code word(s) through the relay device(s), so as to enable, in the receiver(s), an iterative decoding, taking into account the first code words, and then a redundancy formed by the second code word(s).06-30-2011