Radio-wave communication with chaos

Chao Bai, Hai Peng Ren* (Corresponding Author), Wu-Yun Zheng, Celso Grebogi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Chaotic signals require very wide bandwidth to be transmitted in a practical channel, which is difficult for the practical transducer or antenna to convert such a broadband signal. To address this problem, in this work, Chaotic Shape-forming Filter (CSF) is used to obtain the baseband signal, and the corresponding matched filter is used at the receiver to maximize the signal-to-noise ratio. At the same time, the symbol judgment threshold determined by the chaos properties is used to reduce the Inter-Symbol Interference (ISI) effect. Simulations and virtual channel experiments show that the radio-wave communication system using chaos is inferior to the conventional radio-wave communication system using Square Root Raised Cosine (SRRC) shape-forming filter in a single path channel. This is because SRRC eliminates ISI in single path, but CSF does not. However, the chaos-based communication with anti-multipath decoding algorithm shows significantly better Bit Error Rate (BER) performance than the traditional communication system using SRRC and a minimum mean square error (MMSE) channel equalization in a multipath channel. This work shows the potential application prospect of chaos-based communication in future 5G or 6G engineering communication systems.

Original languageEnglish
Pages (from-to)167019-167026
Number of pages8
JournalIEEE Access
Volume8
Early online date8 Sep 2020
DOIs
Publication statusPublished - 2020

Keywords

  • Chaotic communication
  • Decoding
  • Multipath channels
  • Radio-wave communication
  • SYSTEM
  • Baseband
  • PERFORMANCE
  • multipath channels
  • CDMA
  • decoding
  • Wireless communication
  • radio-wave communication
  • Bandwidth
  • MODULATION

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