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  • Research Article
  • Open Access

Blind Search for Optimal Wiener Equalizers Using an Artificial Immune Network Model

  • 1Email author,
  • 1,
  • 1,
  • 2,
  • 2 and
  • 1
EURASIP Journal on Advances in Signal Processing20032003:460216

  • Received: 28 June 2002
  • Published:


This work proposes a framework to determine the optimal Wiener equalizer by using an artificial immune network model together with the constant modulus (CM) cost function. This study was primarily motivated by recent theoretical results concerning the CM criterion and its relation to the Wiener approach. The proposed immune-based technique was tested under different channel models and filter orders, and benchmarked against a procedure using a genetic algorithm with niching. The results demonstrated that the proposed strategy has a clear superiority when compared with the more traditional technique. The proposed algorithm presents interesting features from the perspective of multimodal search, being capable of determining the optimal Wiener equalizer in most runs for all tested channels.


  • blind equalization
  • constant modulus algorithm
  • evolutionary computation
  • artificial immune systems
  • immune network model