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A kind of turbo iterative decoding method and decoding device

An iterative decoding and decoding technology, applied in the direction of error correction/error detection using convolutional codes, error correction/error detection using interleaving technology, data representation error detection/correction, etc., which can solve the problem of time-consuming, large hardware resources, Failure to obtain decoding results and other problems, to achieve the effect of improving performance, reducing the number of decoding iterations, and reducing decoding complexity

Active Publication Date: 2018-06-15
BEIJING SMART LOGIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at this time, the Turbo decoder not only fails to obtain the correct decoding result, but also uses a large amount of hardware resources and spends too much time.

Method used

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  • A kind of turbo iterative decoding method and decoding device
  • A kind of turbo iterative decoding method and decoding device
  • A kind of turbo iterative decoding method and decoding device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] (k is the information bit index)

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Embodiment 2

[0076] (k is the information bit index)

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Embodiment 3

[0079] (k is the information bit index)

[0080]

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Abstract

The invention discloses a Turbo iterative decoding method and device. The device comprises a first subdecoder, a first interleaver, a second interleaver, a second subdecoder, a first de-interleaver, a second de-interleaver, a hard judgment unit and a decoding difference judgment unit. The method comprises the following steps: carrying out iterative decoding on system information, first inspection information and second inspection information by the two soft-input and soft-output subdecoders, and carrying out iterative stop judgment on the difference of the output bit soft information of the two subdecoders by the decoding difference judgment unit. The Turbo iterative decoding method and device can effectively reduce iterative decoding times when the quality of received signals is poor, reduce decoding complexity, reduce hardware and time investment, and accordingly improve the performance of the whole system.

Description

technical field [0001] The invention relates to the communication field, in particular to a Turbo iterative decoding method and a decoding device. Background technique [0002] Turbo codes, also known as parallel concatenated convolutional codes, were proposed by C. Berrou, A. Glavieux and P. Thitimajshiwa at the International Conference on Communication (ICC: International Conference on Communication) in 1993. Various studies and simulation results show that Turbo codes not only have superior performance in resisting additive Gaussian white noise, but also have strong anti-fading and anti-jamming capabilities, and their error correction performance is close to Shannon's limit. Therefore, it is widely used in various communication systems, among which the third-generation and fourth-generation mobile communication systems use Turbo code as the channel coding standard for transmitting high-speed data. [0003] The turbo encoder consists of two parallel concatenated component...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/23H03M13/27
Inventor 王晓琴赵旭莹吴军宁
Owner BEIJING SMART LOGIC TECH CO LTD