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A Wireless Channel Equalization Method Based on Hybrid Whale Optimization: For Constant Modulus Blind Equalization System

Author

Listed:
  • Xiaolin Wang

    (School of Information Engineering, Tianjin University of Commerce, Tianjin 300134, China)

  • Liyi Zhang

    (School of Information Engineering, Tianjin University of Commerce, Tianjin 300134, China)

  • Yunshan Sun

    (School of Information Engineering, Tianjin University of Commerce, Tianjin 300134, China)

  • Yong Zhang

    (School of Information Engineering, Tianjin University of Commerce, Tianjin 300134, China)

  • Yongsheng Hu

    (School of Information Engineering, Tianjin University of Commerce, Tianjin 300134, China
    School of Information Engineering, Binzhou University, Binzhou 256600, China)

Abstract

This paper proposes a wireless channel equalization method applied to the constant modulus blind equalization system, which addresses the slow convergence and strong randomness in the initialization of equalizer weights in the constant modulus blind equalization algorithm (CMA) by introducing a hybrid arithmetic whale optimization algorithm (HAWOA). The mean square error in the CMA is utilized as the cost function for the HAWOA to obtain a more effective initial weights for the equalizer. To validate the superiority of the hybrid arithmetic whale constant modulus blind equalization algorithm, tests are conducted on the equalization system using 16QAM and 64QAM signals. The simulation results demonstrate that the proposed algorithm achieved better initial weights compared to the CMA and the constant modulus blind equalization algorithm based on the whale optimization algorithm. It can obtain the desired mean square error with a lower symbol error rate in fewer iterations. Furthermore, the hybrid arithmetic whale constant modulus blind equalization algorithm exhibited faster convergence in optimizing initial weights, effectively enhancing the equalization performance of the CMA in wireless channels while ensuring timeliness.

Suggested Citation

  • Xiaolin Wang & Liyi Zhang & Yunshan Sun & Yong Zhang & Yongsheng Hu, 2023. "A Wireless Channel Equalization Method Based on Hybrid Whale Optimization: For Constant Modulus Blind Equalization System," Mathematics, MDPI, vol. 11(15), pages 1-23, July.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:15:p:3335-:d:1206104
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    References listed on IDEAS

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    1. Hashim, Fatma A. & Houssein, Essam H. & Hussain, Kashif & Mabrouk, Mai S. & Al-Atabany, Walid, 2022. "Honey Badger Algorithm: New metaheuristic algorithm for solving optimization problems," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 192(C), pages 84-110.
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