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Hyperchaotic spread spectrum sequences selection and its application in DS-CDMA system

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Abstract

In this paper we propose a new algorithm for hyperchaotic spread spectrum sequences selection. Firstly, binary hyperchaotic spread spectrum sequences are generated by a 6-order cellular neural network (CNN). Secondly, we analyze the properties of the sequences according to the P-values and correlation function. Finally, a new algorithm proposed for hyperchaotic spread spectrum sequences selection is based on the properties of hyperchaotic sequences. In order to prove the effectiveness of the proposed selection algorithm, some of the selected hyperchaotic sequences are applied in direct sequence code division multiple access (DS-CDMA) system. Simulation results show that the selected hyperchaotic sequences have better performance than m-sequences and have similar performance with Gold sequences. Compared with m-sequences or Gold sequences, hyperchaotic spread spectrum sequences are better suitable for secure communication systems.

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Authors and Affiliations

  1. Harbin Institute of Technology, Harbin, China

    Shuying Li, Huan Lian, Yaqin Zhao & Zhilu Wu

Authors
  1. Shuying Li
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  2. Huan Lian
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  3. Yaqin Zhao
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  4. Zhilu Wu
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Corresponding author

Correspondence to Shuying Li.

Additional information

Original Russian Text © S. Li, H. Lian, Y. Zhao, Z. Wu, 2015, published in Izv. Vyssh. Uchebn. Zaved., Radioelektron., 2015, Vol. 58, No. 9, pp. 23–32.

This work was partially supported by the National Natural Science Foundation of China under Grant No. 61102085, and Natural Scientific Research Innovation Foundation in Harbin Institute of Technology under Project No. HIT.NSRIF 201151.

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Li, S., Lian, H., Zhao, Y. et al. Hyperchaotic spread spectrum sequences selection and its application in DS-CDMA system. Radioelectron.Commun.Syst. 58, 404–410 (2015). https://doi.org/10.3103/S0735272715090022

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