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Spread Spectrum Based Energy Efficient Collaborative Communication in Wireless Sensor Networks.

Anwar Ghani1, Husnain Naqvi1, Muhammad Sher1

  • 1Department of Computer Science & Software Engineering, International Islamic University, Islamabad, Pakistan.

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|July 23, 2016
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Summary
This summary is machine-generated.

This study introduces an energy-efficient spread spectrum system for wireless sensor networks (WSNs). Collaborative communication enhances node battery life, outperforming single-input single-output (SISO) systems at longer distances.

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Area of Science:

  • Electrical Engineering
  • Computer Science
  • Telecommunications

Background:

  • Wireless sensor networks (WSNs) rely on resource-limited devices, where battery life is critical for applications like battlefield or volcanic area monitoring.
  • Replacing or recharging power sources is often infeasible in remote or hazardous WSN deployment scenarios.

Purpose of the Study:

  • To present an energy-efficient collaborative communication system for WSNs using spread spectrum technology.
  • To enhance energy efficiency while ensuring immunity against jamming, interference, and noise, and enabling universal frequency reuse.

Main Methods:

  • Developed a collaborative communication system based on spread spectrum principles.
  • Evaluated system performance through received signal power, bit error rate (BER), and energy consumption metrics.
  • Compared analytical and simulation results with a Single-Input Single-Output (SISO) system.

Main Results:

  • Demonstrated a direct proportionality between power gain and the number of collaborative nodes.
  • Observed a direct proportionality between BER and the signal-to-noise ratio (Eb/N0).
  • Found that SISO systems perform better at short distances, while collaborative communication excels at long distances.

Conclusions:

  • Collaborative communication in WSNs using wideband systems significantly improves node battery life.
  • The proposed system prolongs the overall network lifetime by conserving energy.
  • The system offers improved robustness against interference and jamming compared to traditional systems.