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Related Experiment Videos

Robust Position-Only Null Steering in Linear Antenna Arrays via a Nature-Inspired Optimizer for Wireless

Ali Yildiz1, Ali Akdagli1, Filiz Karaomerlioglu1

  • 1Department of Electrical and Electronics Engineering, Mersin University, 33150 Mersin, Turkey.

Biomimetics (Basel, Switzerland)
|May 26, 2026
PubMed
Summary

A new position-only null steering method using Honey Formation Optimization with Single Component (HFOSC) offers hardware-efficient interference suppression for wireless networks. This approach optimizes element locations, eliminating phase shifters and attenuators for robust adaptive interference cancellation.

Keywords:
HFOSCadaptive beamformingarray pattern synthesishoney formation optimizationinterference mitigationlinear antenna arraysmetaheuristic optimizationnull steeringposition-only synthesiswireless communications

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Area of Science:

  • Wireless Communication
  • Signal Processing
  • Metaheuristic Optimization

Background:

  • Increasing density in wireless networks drives demand for efficient interference suppression algorithms.
  • Existing methods often require complex hardware like phase shifters and attenuators.

Purpose of the Study:

  • Propose a hardware-efficient, position-only null steering method for linear antenna arrays.
  • Utilize the Honey Formation Optimization with Single Component (HFOSC) algorithm for robust interference suppression.
  • Evaluate the method's performance in various interference scenarios and practical constraints.

Main Methods:

  • Developed a position-only null steering technique by optimizing element locations in a linear antenna array.
  • Employed the Honey Formation Optimization with Single Component (HFOSC) metaheuristic algorithm.
  • Tested the method on a 30-element linear array with Chebyshev excitation under single-null, multiple-null, and wide-sector nulling conditions.

Main Results:

  • Achieved deep nulls (below -90 dB in idealized cases, -72.89 dB in practical designs) while preserving main-beam shape and sidelobe performance.
  • Demonstrated strong interference suppression across diverse scenarios.
  • HFOSC outperformed Genetic Algorithm (GA), Particle Swarm Optimization (PSO), and Differential Evolution (DE) in optimization cost and stability.

Conclusions:

  • The proposed HFOSC-based position-only null steering is a hardware-friendly, robust solution for adaptive interference cancellation.
  • Optimizing element positions effectively reduces implementation complexity without sacrificing pattern control.
  • The method offers a significant improvement in optimization performance and practical applicability for wireless communication systems.