Improved shifted robust soliton distribution

Niu, Fanglin; Yu, Ling; Chen, Lei; Wang, Dongxia; Tang, Zhenzhou

doi:10.1049/iet-com.2015.0042

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…Ref. [ 11 ] pointed out that since the degree value represents the number of symbols selected, there is a rounding operation in the adjustment process of the SRSD degree distribution, and the actual degree

and the ideal degree

obtained by rounding will produce an error offset. It is pointed out that when

, the accumulated error offset of

reaches the maximum, which leads to an increase in the number of decoded symbols.…”

Section: Slt Code and Degree Distributionmentioning

confidence: 99%

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Shifted LT Code Security Scheme for Partial Information Encryption

Zhang

Niu

Wang

et al. 2022

Entropy

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The existing physical layer security technology based on fountain codes needs to ensure that the legal channel is superior to the eavesdropping channel; when the quality of the legal channel and the eavesdropping channel are close, the information security cannot be guaranteed. Aiming at this problem, this paper proposes a shifted Luby transform (SLT) code security scheme for partial information encryption, which is mainly divided into two stages, partial information encryption transfer and degree distribution adjustment. The main idea is that the source randomly extracts part of the information symbols, and performs XOR encryption with the random sequence containing the main channel noise sent by the legitimate receiver. Afterward, the degree distribution is adjusted using the number of transfer information symbols received by the legitimate receiver to improve the average degree of the encoded codewords. Since the eavesdropper can only obtain fewer information symbols in the initial stage, it is difficult to decode the generated coded symbols after the degree distribution adjustment, thereby ensuring the safe transmission of information. The experimental results show that, compared with other LT anti-eavesdropping schemes, even if the legitimate channel is not dominant, the proposed scheme still has better security performance and less decoding overhead.

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and the ideal degree

obtained by rounding will produce an error offset. It is pointed out that when

, the accumulated error offset of

reaches the maximum, which leads to an increase in the number of decoded symbols.…”

Section: Slt Code and Degree Distributionmentioning

confidence: 99%

“…Ref. [ 11 ] optimized the SRSD degree distribution function by reducing the rounding degree offset and the limiting probability distribution of degrees to further reduce the codec complexity. Ref.…”

Section: Introductionmentioning

confidence: 99%

Shifted LT Code Security Scheme for Partial Information Encryption

Zhang

Niu

Wang

et al. 2022

Entropy

View full text Add to dashboard Cite

show abstract

Improved online fountain codes

et al. 2018

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Design of Anti-Eavesdropping Scheme for SLT-LT Codes Based on Random Symbol Sets

Zhang

Niu

et al. 2022

IEEE Access

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In recent years, physical layer security technology has provided a new way to solve the problem of secure transmissions in wireless communications from an information theory perspective by using physical layer security coding and the inherent characteristics of the channel. As a nonsystematic code, Luby transform (LT) code has the characteristics of random coding and rateless, therefore, eavesdroppers cannot directly obtain useful information from leaked code symbols. As a shifted LT (SLT) code, the SLT codes can efficiently recover information, with a smaller decoding overhead. Therefore, we propose an SLT-LT joint code anti-eavesdropping scheme based on random symbol sets. Based on the environment of the main channel, the sender selects a set of random symbols to send to legitimate receivers as known symbols and uses these random symbols and message symbols to form source symbols for the SLT-LT concatenated coding to increase the bit error rate (BER) of the eavesdroppers. The experimental results show that, compared with other anti-eavesdropping LT schemes, our proposed scheme only adds a small amount of decoding overhead but has a better security performance.

show abstract

Improved shifted robust soliton distribution

Cited by 5 publications

References 16 publications

Shifted LT Code Security Scheme for Partial Information Encryption

Shifted LT Code Security Scheme for Partial Information Encryption

Improved online fountain codes

Design of Anti-Eavesdropping Scheme for SLT-LT Codes Based on Random Symbol Sets

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