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An Efficient Construction Method of Polar Codes

A construction method and polar code technology, applied in the field of communication coding, can solve the problem of high complexity of polar code algorithm

Active Publication Date: 2020-03-31
ANHUI UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to solve the defect of high complexity of the polar code construction algorithm in the prior art, and provide an efficient construction method of the polar code to solve the above problems

Method used

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  • An Efficient Construction Method of Polar Codes
  • An Efficient Construction Method of Polar Codes
  • An Efficient Construction Method of Polar Codes

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Embodiment Construction

[0070] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0071] Such as figure 1 As shown, an efficient construction method of a polar code according to the present invention includes the following steps:

[0072] The first step is to determine the relationship between channels. Under the condition of not calculating the Bhattachary parameter of the information, according to the two forms of the partial sequence theorem (PO theorem), first determine the relationship between some channels, then use the generalized partial sequence theorem to find the relationship between other channels, and finally pass the intermediate Channels determine indirect relationships between partial channels. It avoids the calculation of Bhattva parameters for all channels, and only calculates the Bhattachary pa...

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Abstract

The invention relates to an efficient construction method of a polar code, which solves the defect of high complexity of the construction algorithm of the polar code compared with the prior art. The present invention includes the following steps: determining the relationship between channels; obtaining the judgment of information bits and dormant bits according to the channel relationship matrix O; forming K bits of information bits, calculating the Bhattachary parameter of the channel for the set U, and selecting the set U The best K-|I| channels, put these K-|I| channels into the set I, and select K channels as the K-bit information bits of the polar code. The invention reduces the complexity of the polar code construction and proposes an efficient construction of the polar code.

Description

technical field [0001] The invention relates to the technical field of communication coding, in particular to an efficient construction method of polar codes. Background technique [0002] Polar codes are well known because they can reach the Shannon limit for a variety of symmetric discrete memoryless channels (DMCs), and they have a clear code construction method and low encoding and decoding complexity, so they are selected as control channels. Enhanced coding methods in 5G. The construction problem of polar codes is: for a given coding rate R, how to obtain from elected The best channels of bits are used as information bits to convey information, and the remaining bits are dormant bits known to both the sender and receiver. However, for a polar code with a long code length, the complexity of code construction is relatively large. [0003] Therefore, how to reduce the complexity of polar code construction and propose an efficient polar code construction method has b...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/13
CPCH03M13/13
Inventor 李莉萍王炜
Owner ANHUI UNIVERSITY
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