Patent
Iterative error-correction for turbo code decoding
Mikhail Sall,Redkov Victor +1 more
- 10 Jan 2000
12
TL;DR: In this article, an iterative error correction for decoding digital data transmitted or broadcasted is disclosed, which is especially effective when there is high transmission noise and is applicable in decoding Turbo codes.
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Abstract: An iterative error-correction for decoding digital data transmitted or broadcasted is disclosed. The present invention is especially effective when there is high transmission noise and is applicable in decoding Turbo codes. The iterative decoding generally utilizes at least two parallel decoding processes and comprises two iterations from which the decoded data is obtained by combining decoded elements of the iterations. Also, for each iteration, an intermediate decoded data element is multiplied by a scaling factor based upon parameters of the previously decoded data element block and is used on the next decoding iteration. By utilizing at least two parallel decoding processes, the number of errors is significantly reduced and the decoding process may be optimally terminated.
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Citations
Patent
Multiple access for parallel turbo decoder
Esko Nieminen
- 03 Jun 2008
TL;DR: In this article, a control signal is generated for the first and second Butterfly networks in accordance with a multiple access rule to enable parallel access to the memory bank, without memory access conflict, for one of a linear order and an interleaved order.
24
Patent
Encoding and decoding apparatus and method
Yan-Xiu Zheng,Yu T. Su,Wei-Ting Wang +2 more
- 08 Oct 2004
TL;DR: In this article, an interleaver and method of interleaving operate on data represented in a sequence of symbols to produce interleaved sequences of symbols, which are then encoded into a second sequence of codewords.
21
Patent
Address generation for multiple access of memory
Esko Nieminen
- 02 Jul 2009
TL;DR: In this article, a half butterfly network (at least half, and barrel shifters in 8-tuple embodiments) is disposed between the memory bank and the forward unit and the backward unit.
21
Patent
Data processing apparatus using iterative decoding
Toshikazu Kanaoka,Masakazu Taguchi,Akihiro Itakura +2 more
- 20 Feb 2003
TL;DR: A data signal processing apparatus is capable of reproducing original data with a small number of repetition times of an iterative decoding process, which is realized by likelihood information operating means as discussed by the authors.
16
Patent
Noise and quality detector for use with turbo coded signals
Esko Nieminen
- 30 Oct 2003
TL;DR: In this paper, the authors present a method to operate a decoder and a decoder that operates in accordance with the method, which includes monitoring, during operation of the decoder on a signal received from a channel, the value of at least one extrinsic value, determining whether the signal comprises a valid code word or comprises only noise, and may also obtain information that is indicative of the quality of decoding process.
7
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Haggai H. Haller,Jeremy M. Stein +1 more
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TL;DR: In this paper, a plurality of decoders, each of which performs a different decoding method on one of the signal packets, are used to perform iterative decoding of a sequence of signal packets in accordance with a multi-component coding scheme.
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