Publications related to Polarization-Adjusted Convolutional (PAC) Codes: Sequential Decoding vs List Decoding

Channel coding and modulation based on chaotic systems

In this thesis, a new class of codes on graphs based on chaotic dynamical systems are proposed. In particular, trellis coded modulation and iteratively decodable codes on graphs are studied. The codes are designed by controlling symbolic dynamics of chaoti ...

EPFL2006

Robust Transmission of H.264/AVC Streams Using Adaptive Group Slicing and Unequal Error Protection

Nikolaos Thomos

We present a novel scheme for the transmission of H.264/AVC video streams over lossy packet networks. The proposed scheme exploits the error-resilient features of H.264/AVC codec and employs Reed-Solomon codes to protect effectively the streams. A novel te ...

2006

Methods and apparatus employing FEC codes with permanent inactivation of symbols for encoding and decoding processes

Mohammad Amin Shokrollahi

A method of encoding data for transmission from a source to a destination over a communications channel is provided. A plurality of encoded symbols are generated from a set of input symbols including source symbols and redundant symbols, wherein the input ...

2006

Posterior Based Keyword Spotting with A Priori Thresholds

Hervé Bourlard, Samy Bengio, Hamed Ketabdar

In this paper, we propose a new posterior based scoring approach for keyword and non keyword (garbage) elements. The estimation of these scores is based on HMM state posterior probability definition, taking into account long contextual information and the ...

2006

Posterior Based Keyword Spotting with A Priori Thresholds

Hervé Bourlard, Samy Bengio, Hamed Ketabdar

In this paper, we propose a new posterior based scoring approach for keyword and non keyword (garbage) elements. The estimation of these scores is based on HMM state posterior probability definition, taking into account long contextual information and the ...

IDIAP2006

Maximum Rank Distance (MRD) Codes for ISI channels

Suhas Diggavi, Sanket Dusad

In this report we construct maximal rate binary MRD codes for ISI channel. We can then subsequently characterise the rate diversity tradeoff for ISI channel. ...

2006

Joint source-channel coding with feedback

Communications is about conveying information from one point to another subject to certain performance constraints. The information is assumed to be generated by a source and may, for example, represent a voice waveform, the reading of a thermal sensor, or ...

EPFL2005

Improved Decoding of Interleaved AG-Codes

Mohammad Amin Shokrollahi, Lorenz Minder, Andrew Brown

We analyze a generalization of a recent algorithm of Bleichenbacher et al.~for decoding interleaved codes on the

Q

-ary symmetric channel for large

Q

. We will show that for any

m

and any

\epsilon

the new algorithms can decode up to a fraction of at ...

2005

Systematic encoding and decoding of chain reaction codes

Mohammad Amin Shokrollahi

A method of encoding data into a chain reaction code includes generating a set of input symbols from input data. Subsequently, one or more non-systematic output symbols is generated from the set of input symbols, each of the one or more non-systematic outp ...

2005

Low-density parity-check codes with rates very close to the capacity of the q-ary symmetric channel for large q

Mohammad Amin Shokrollahi

Transmission of packets over computer networks is subject to packet-level errors, which appear as "bursts" of bit-level errors and are not well modeled by memoryless binary channels. A standard scrambling technique is used for transmission of packets by th ...

2004

Polarization-Adjusted Convolutional (PAC) Codes: Sequential Decoding vs List Decoding

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Channel coding and modulation based on chaotic systems

Robust Transmission of H.264/AVC Streams Using Adaptive Group Slicing and Unequal Error Protection

Methods and apparatus employing FEC codes with permanent inactivation of symbols for encoding and decoding processes

Posterior Based Keyword Spotting with A Priori Thresholds

Posterior Based Keyword Spotting with A Priori Thresholds

Maximum Rank Distance (MRD) Codes for ISI channels

Joint source-channel coding with feedback

Improved Decoding of Interleaved AG-Codes

Systematic encoding and decoding of chain reaction codes

Low-density parity-check codes with rates very close to the capacity of the q-ary symmetric channel for large q

Robust Transmission of H.264/AVC Streams Using Adaptive Group Slicing and Unequal Error Protection

Low-density parity-check codes with rates very close to the capacity of the q-ary symmetric channel for large q

Methods and apparatus employing FEC codes with permanent inactivation of symbols for encoding and decoding processes

Systematic encoding and decoding of chain reaction codes

Joint source-channel coding with feedback

Improved Decoding of Interleaved AG-Codes

Posterior Based Keyword Spotting with A Priori Thresholds

Channel coding and modulation based on chaotic systems

Posterior Based Keyword Spotting with A Priori Thresholds

Maximum Rank Distance (MRD) Codes for ISI channels