RA码与网络编码的联合设计

doi:10.16180/j.cnki.issn1007-7820.2020.10.007

Abstract

Abstract:

In view of the problems of complex structure of coding and decoding system and poor stability of network transmission in existing coding technology, a joint design method of RA code and network coding is proposed. RA code combines the advantages of Turbo code and LDPC code. The BP decoding algorithm of RA code is adopted in this study. By adding the decoder of RA code into the information calculation process of PNC, the channel coding based on RA code is combined with PNC. Finally, the simulation is carried out by MATLAB platform. Based on AWGN channel, the SNR/BER performance curve is obtained. The simulation results show that the scheme effectively simplifies the system structure, reduces the signal-to-noise ratio and delay of the system, and improves the stability of transmission performance.

Key words: RA code, channel coding, physical layer network coding, posterior probability vector, RA decoder, BP algorithm

CLC Number:

TN911

MIAO Lin,PENG Yaxiong,LU Anjiang. Joint Design Scheme of RA Code and Network Coding[J].Electronic Science and Technology, 2020, 33(10): 40-44.

Figures/Tables 7

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Joint Design Scheme of RA Code and Network Coding

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