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Incremental-data stealth-transmission method in DSSS

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Abstract

A direct-sequence spread-spectrum (DSSS) signal has many advantages, such as low SNR and strong anti-jamming ability; thus, it is widely used in various military and civil communication systems. However, hiding and high-data-rate transmission technologies have become the key factors affecting the future applications of the existing DSSS. To solve these problems, an incremental-data stealth-transmission (IDST) method is proposed, which stealthily transmits incremental data through variations in the spread spectrum function and alternation of the weighted fractional Fourier transform modulation order. The incremental data are not transmitted through a real channel but through the function relationship to achieve index transmission. Without affecting the spread spectrum gain and SNR tolerance of the original data, the proposed method greatly improves the amount of information transmitted and enhances the concealment of incremental data.

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Acknowledgements

This work is supported in part by the National Natural Science Foundation of China (Grant No. 61501309), the Liaoning Natural Science Foundation of China, the Liaoning BaiQianWan Talents Program, and the Liaoning Provincial Colleges and Universities Innovative Talents Support Program.

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Authors and Affiliations

  1. School of Information Science and Engineering, Shenyang Ligong University, Shenyang, China

    Fang Liu & Jian Liu

  2. Graduate School, Shenyang Ligong University, Shenyang, China

    Yongxin Feng

Authors
  1. Fang Liu
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  2. Jian Liu
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  3. Yongxin Feng
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Correspondence to Fang Liu.

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Liu, F., Liu, J. & Feng, Y. Incremental-data stealth-transmission method in DSSS. Wireless Netw 27, 2441–2449 (2021). https://doi.org/10.1007/s11276-021-02590-6

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