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Polar code encoding modulation method applicable to any high-order modulation

A high-order modulation and coding modulation technology, which is applied in coding, error correction/detection using block single space coding, coding components, etc., which can solve the high complexity of the search method of interleaving rules, the difficulty of programming and implementation of programmable devices, and the difficulty of decoding. The problem of increasing code complexity, etc., achieves the effect of reducing coding complexity, reducing complexity, and increasing channel polarization.

Active Publication Date: 2016-12-14
XIDIAN UNIV
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Problems solved by technology

The shortcomings of this scheme are: the search method of interleaving rules is highly complex; changing the size of the encoding matrix by changing the size of the base matrix increases the decoding complexity, and it is difficult to program and implement on programmable devices
The disadvantage of this scheme is: due to the use of multiple parallel encoders, the encoding complexity is relatively high

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  • Polar code encoding modulation method applicable to any high-order modulation
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  • Polar code encoding modulation method applicable to any high-order modulation

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Refer to attached figure 1 The detailed steps of the present invention are as follows.

[0033] Step 1, use the following formula to calculate the code length of the polar code:

[0034] N'=N×b / n'

[0035] Among them, N' represents the code length of the polar code, N represents the original code length of the polar code, and its value is 2 n , n represents a positive integer, b represents an odd factor of the binary length of a single high-order modulation symbol, when b does not exist, the value of N' is N, n' represents the scaling factor, and its value is min{2 m′ |2 m′ >b}, m' is a positive integer.

[0036] In the embodiment of the present invention, 64-QAM modulation is adopted, and the code length N'=1536 of the polar code is calculated. The original code length of the polar code is N=2048, and the positive integer n=11. The binary length of a singl...

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Abstract

The invention discloses a polar code encoding modulation method applicable to any high-order modulation. The method comprises the concrete steps of (1), calculating the code length of a polar code; (2), generating an encoding matrix of the polar code; (3), generating the encoding matrix after puncturing; (4), generating code words of the polar code; (6) interleaving the code words; and (7), carrying out high-order modulation. According to the method, the code words are interleaved by employing a grouping interleaving technology, the polar effect of a channel is intensified with the combination of the polar characteristic of the polar code itself and the capacity differences of high-order modulation sub-channels, and the performance of the polar code is improved. According to the method, the encoding matrix is punctured according to a column weight, the decoding delay is reduced, and the programming realization complexity of a decoding algorithm in a programmable device is reduced. The flexibility of the polar code in the high-order modulation is improved, and the polar code has good performance.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a polar code coding modulation method suitable for arbitrary high-order modulation in the technical field of wireless communication. The present invention deletes part of the column vectors of the polar code coding matrix, changes the code length of the polar code, and then performs packet interleaving on the code words, so that it is suitable for any high-order modulation and has good performance, and can be used for cellular communication, satellite Communication and military systems, can improve the spectral efficiency and reliability of the system. Background technique [0002] At present, in domestic and foreign communication systems, in order to improve the spectral efficiency and reliability of the system, a polar code coding modulation method suitable for arbitrary high-order modulation is needed. The traditional method uses a 2×2 base matrix to construct a p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/04H04L1/00
CPCH03M13/13H03M13/251H03M13/6362H04B7/0456H04B7/0469H04B7/0482H04L1/0071
Inventor 徐旻子陈佩瑶罗睿白宝明
Owner XIDIAN UNIV
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