A Decoding Simplification Method for Joint Channel Coding and Physical Layer Network Coding

A technology of network coding and joint channel, which is applied in the field of decoding simplification of joint channel coding and physical layer network coding, and can solve problems such as the inability to maximize the related characteristics of channel coding and decoding, no further optimization, and insufficient technology integration , achieving the effects of reduced information memory overhead, less performance loss, and simplified decoding complexity

Active Publication Date: 2021-07-13
FUZHOU UNIV
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Problems solved by technology

However, this solution simply uses LDLC technology, and there is no further optimization under the physical layer.
[0006] The existing technical solutions simply use the good channel characteristics of LDLC coding and decoding to achieve optimization, but do not understand and utilize the relevant principles of channel coding and decoding at a deep level. In the optimization of physical layer network coding, the integration of technologies is still Not enough, unable to maximize the relevant characteristics of channel coding and decoding, resulting in a waste of resources to a certain extent, and there is still room for further improvement in technology

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  • A Decoding Simplification Method for Joint Channel Coding and Physical Layer Network Coding
  • A Decoding Simplification Method for Joint Channel Coding and Physical Layer Network Coding
  • A Decoding Simplification Method for Joint Channel Coding and Physical Layer Network Coding

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[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0047] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

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Abstract

The present invention relates to a decoding simplification method of joint channel coding and physical layer network coding. Firstly, source node A and source node B respectively generate binary information, and after the same channel coding, respectively obtain signals, and then transmit after BPSK modulation. To the relay point R, the relay point R will perform the XOR operation on the signals received from the source node A and the source node B, and broadcast the estimated information of the XOR operation; then node A and node B according to the received XOR operation is performed on the broadcast signal to estimate the encoded codeword of the transmitted signal, and finally the required output signal and its probability are deduced. The invention applies the max log-likelihood algorithm (max-log) to the scheme of joint channel coding and physical layer network coding, which greatly simplifies the complexity of the algorithm.

Description

technical field [0001] The invention relates to the field of channel coding, in particular to a decoding simplification method for joint channel coding and physical layer network coding. Background technique [0002] Physical Layer Network Coding (PLNC) was proposed by Zhang in 2006. It superimposes and maps wireless electromagnetic wave signals onto Galois field (GF(2)), performs operations on bit data streams, and integrates external interference into network coding algorithm operations. Among them, compared with the traditional transmission mode, the time slot is effectively reduced and the network throughput is improved. Low Density Parity Check codes (LowDensity Parity Check, LDPC codes for short) are a type of channel codes whose performance is close to the Shannon limit. The LDPC code adopts an iterative probabilistic decoding algorithm, which is a parallel algorithm, can be operated in parallel, is convenient to implement in hardware, has good anti-error performance...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/11
CPCH03M13/116
Inventor 陈平平欧建辉刘惠燕陈嘉栎谢肇鹏
Owner FUZHOU UNIV
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