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Novel anti co-channel interference scheme for sensor networks.

Man Feng1, Lenan Wu

  • 1Institute of Information Science and Engineering, Southeast University, Nanjing 210096, China. seu_fengman@hotmail.com

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Summary

This study introduces Extended Binary Phase Shift Keying (EBPSK) modulation to improve wireless sensor performance against co-channel interference. EBPSK demonstrates excellent anti-interference capabilities, especially with minimal initial phase differences in interfering signals.

Keywords:
Extended Binary Phase Shift Keying (EBPSK)filterinterference suppressionwireless sensors network

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Area of Science:

  • Wireless communication systems
  • Signal processing

Background:

  • Wireless sensors are increasingly used in automated systems.
  • Co-channel interference poses significant challenges to wireless sensor reliability and performance.
  • Existing modulation schemes may struggle with interference in dense wireless environments.

Purpose of the Study:

  • To propose a novel modulation scheme for enhanced performance in the presence of co-channel interference.
  • To introduce a throughput-efficient scheme based on Extended Binary Phase Shift Keying (EBPSK).
  • To analyze the impact of co-channel interference on the EBPSK waveform.

Main Methods:

  • Development of a transmission scheme utilizing Extended Binary Phase Shift Keying (EBPSK) modulation.
  • Presentation of a key impacting filter designed for the EBPSK system.
  • Analysis of co-channel interference effects on the EBPSK waveform under various conditions through simulations.

Main Results:

  • EBPSK modulation shows inherent excellent anti-interference performance.
  • The system's robustness is particularly evident when the initial phase of co-channel interference is small.
  • Simulations confirm the effectiveness of the proposed transmission scheme.

Conclusions:

  • Extended Binary Phase Shift Keying (EBPSK) offers a robust solution for wireless sensor networks facing co-channel interference.
  • The proposed scheme enhances throughput efficiency and system reliability.
  • EBPSK is a promising modulation technique for improving wireless communication performance in challenging interference environments.