Abstract
This paper signifies to present a design methodology for equalization of nonlinear channels for weights adaptation. Adaptive algorithms such as PSO, FFA, and VSFFA-based channel equalizer aimed to minimize inter-symbol interference associated with broadcast channel. In this paper, we implemented various channel equalizers such as decision directed equalizer, dispersion minimizing equalizer using PSO, FFA, and VSFFA which are principally derivative-free optimization tools. These algorithms are appropriately used to update weights of equalizers. Accomplishment of proposed diverse channel equalizers are evaluated in terms of mean square error (MSE) and BER plots and assessments are made using evolutionary algorithms applied to equalizers. It is observed that proposed equalizer-based adaptive algorithms, mostly VSFFA trained equalizers, offer improved performance so far as accurateness of reception is taken into account.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Akaneme, E.S.A., Onoh, G.N.: Algorithms for evaluating adaptive equalization in wireless communication systems. Eur. J. Eng. Technol. 3(2) (2015). ISSN 2056-5860
Kennedy, J., Eberhart, R.C.: Particle swarm optimization. In: Proceedings of the IEEE International Conference on Neural Networks, vol. 4, pp. 1942–1948 (1995)
Yang, X.S.: Firefly algorithms for multimodal optimization. In: Proceedings of the 5th International Conference on Stochastic Algorithms Foundations and Applications, vol. 5792, pp. 169–178. LNCS Springer (2009)
Yu, S., Zhu, S., Ma, Y., Mao, D.: A variable step size firefly algorithm for numerical optimization. Appl. Math. Comput. 263, 214–220 (2015)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Sarangi, A., Sarangi, S.K., Panigrahi, S.P. (2018). Adaptive Channel Equalization Using Decision Directed and Dispersion Minimizing Equalizers Trained by Variable Step Size Firefly Algorithm. In: Bhateja, V., Coello Coello, C., Satapathy, S., Pattnaik, P. (eds) Intelligent Engineering Informatics. Advances in Intelligent Systems and Computing, vol 695. Springer, Singapore. https://doi.org/10.1007/978-981-10-7566-7_30
Download citation
DOI: https://doi.org/10.1007/978-981-10-7566-7_30
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-7565-0
Online ISBN: 978-981-10-7566-7
eBook Packages: EngineeringEngineering (R0)