Non-binary RC-LDPC Information Security Transmission Algorithm Based on Satellite Communication System

doi:10.12068/j.issn.1005-3026.2021.02.007

Journal of Northeastern University(Natural Science) ›› 2021, Vol. 42 ›› Issue (2): 196-200.DOI: 10.12068/j.issn.1005-3026.2021.02.007

• Information & Control • Previous Articles Next Articles

Non-binary RC-LDPC Information Security Transmission Algorithm Based on Satellite Communication System

LIU Jun¹ ， ZHANG Li-li¹， JIANG Xiang-hong²， ZHANG Yong-fang¹

1. School of Computer Science & Engineering， Northeastern University， Shenyang 110169， China; 2. Engineering and Technology College， Hubei University of Technology， Wuhan 430068， China.

Received:2020-05-07 Revised:2020-05-07 Accepted:2020-05-07 Published:2021-03-05
Contact: ZHANG Li-li
About author:-
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Abstract

Abstract: It is easy for signal transmission based on satellite communication to be received illegally through wireless channels， leading to information leakage. Therefore， we propose a non-binary RC-LDPC(rate compatible low density parity check) encoding method for satellite channel based on the existing physical layer security research， and apply the method to the AMC system.The algorithm uses channel state information to secrete the private information in the deleted position. By narrowing the gap of safety， the proposed method elevates the drop rate of error curve of the legal receiver to ensure information security. The algorithm was simulated and analyzed based on NI USRP and LabVIEW. The simulation results show that the proposed algorithm can guarantee the receiver to receive correctly and the bit error rate of eavesdropper up to about 0.5， ensuring the safe transmission of information.

Key words: satellite communication system; RC-LDPC (rate compatible low density parity check); punching algorithm; shortening algorithm; adaptive modulation coding

CLC Number:

TP393

LIU Jun ， ZHANG Li-li， JIANG Xiang-hong， ZHANG Yong-fang. Non-binary RC-LDPC Information Security Transmission Algorithm Based on Satellite Communication System[J]. Journal of Northeastern University(Natural Science), 2021, 42(2): 196-200.

References

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Non-binary RC-LDPC Information Security Transmission Algorithm Based on Satellite Communication System

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