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Joint detection and decoding method, device, computer equipment and storage medium

A joint detection and computer program technology, which is applied in the direction of error detection coding, data representation error detection/correction, error correction/detection using block codes, etc., can solve the problem of low decoding performance and achieve improved decoding performance and accuracy high degree of effect

Active Publication Date: 2022-05-06
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL +1
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Problems solved by technology

[0005] Based on this, it is necessary to provide a joint detection and decoding method, device, computer equipment and storage medium for the above-mentioned problem of low decoding performance

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  • Joint detection and decoding method, device, computer equipment and storage medium
  • Joint detection and decoding method, device, computer equipment and storage medium
  • Joint detection and decoding method, device, computer equipment and storage medium

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Embodiment Construction

[0045] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0046] Non-orthogonal Multiple Access (Non-orthogonal Multiple Access; NOMA for short) technology is a 5G-oriented coding technology, which not only has a high spectral efficiency gain, but also can effectively support massive connections. Currently, The mainstream non-orthogonal multiple access technology is mainly divided into two types, one is based on power domain multiplexing technology, for example: PD-NOMA (English: Power Domain Non-orthgonal Multiple Access; abbreviation: PD-NOMA) technology ; The other is a technology based on code domain multiplexing, such as SCMA technology.

[0047]Among them, SCMA technology is a code domain non-orthogonal multiple access technology, which improves the service capability of the syste...

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Abstract

The application discloses a joint detection and decoding method, device, computer equipment, and storage medium, which relate to the field of communication technology. The joint detection and decoding method includes: obtaining a target sequence to be decoded, and performing n times on the target sequence Decoding processing, using the decoding sequence obtained by the last decoding processing as the decoding result of the target sequence; wherein, the m-th decoding processing in the n-time decoding processing includes: generating the m-th group of logarithmic likelihood ratios LLR: Determine the target decoding path from multiple candidate decoding paths according to the m-th group of LLRs, obtain the decoding sequence obtained after decoding the target sequence according to the target decoding path, and obtain the decoding sequence when m is less than n For the corresponding soft information, calculate the prior symbol probability corresponding to the target sequence according to the soft information; when m=n, output the decoding sequence; wherein, m is a positive integer less than or equal to n. The joint detection and decoding method provided in this application can improve decoding performance.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a joint detection and decoding method, device, computer equipment and storage medium. Background technique [0002] SCMA (English: Sparse Code Multiple Access; Chinese: Sparse Code Division Multiple Access) technology is a non-orthogonal multiple access technology for 5G (English: 5th generation mobile networks; abbreviation: fifth generation mobile communication technology). SCMA technology can support massive connections and has high spectrum efficiency. [0003] In practical applications, SCMA technology requires cascaded channel coding technology to improve service performance. The prior art proposes a SC (English: Successive Cancellation; abbreviation: SC) code and SCMA technology to form a joint detection and decoding method based on the SC-SCMA system. The method is: first perform SCMA detection on the received signal , and then use the SC decoding a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H03M13/29H03M13/11H03M13/13H03M13/09
CPCH04L1/0048H04L1/0057H03M13/2945H03M13/1125H03M13/13H03M13/09
Inventor 焦健梁可欣冯博文吴绍华张钦宇
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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