Adaptive Step Size Gradient Ascent ICA Algorithm for Wireless MIMO Systems
Joint Authors
Uddin, Zahoor
Ahmad, Ayaz
Iqbal, Muhammad
Kaleem, Zeeshan
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Telecommunications Engineering
Abstract EN
Independent component analysis (ICA) is a technique of blind source separation (BSS) used for separation of the mixed received signals.
ICA algorithms are classified into adaptive and batch algorithms.
Adaptive algorithms perform well in time-varying scenario with high-computational complexity, while batch algorithms have better separation performance in quasistatic channels with low-computational complexity.
Amongst batch algorithms, the gradient-based ICA algorithms perform well, but step size selection is critical in these algorithms.
In this paper, an adaptive step size gradient ascent ICA (ASS-GAICA) algorithm is presented.
The proposed algorithm is free from selection of the step size parameter with improved convergence and separation performance.
Different performance evaluation criteria are used to verify the effectiveness of the proposed algorithm.
Performance of the proposed algorithm is compared with the FastICA and optimum block adaptive ICA (OBAICA) algorithms for quasistatic and time-varying wireless channels.
Simulation is performed over quadrature amplitude modulation (QAM) and binary phase shift keying (BPSK) signals.
Results show that the proposed algorithm outperforms the FastICA and OBAICA algorithms for a wide range of signal-to-noise ratio (SNR) and input data block lengths.
American Psychological Association (APA)
Uddin, Zahoor& Ahmad, Ayaz& Iqbal, Muhammad& Kaleem, Zeeshan. 2018. Adaptive Step Size Gradient Ascent ICA Algorithm for Wireless MIMO Systems. Mobile Information Systems،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1204930
Modern Language Association (MLA)
Uddin, Zahoor…[et al.]. Adaptive Step Size Gradient Ascent ICA Algorithm for Wireless MIMO Systems. Mobile Information Systems No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1204930
American Medical Association (AMA)
Uddin, Zahoor& Ahmad, Ayaz& Iqbal, Muhammad& Kaleem, Zeeshan. Adaptive Step Size Gradient Ascent ICA Algorithm for Wireless MIMO Systems. Mobile Information Systems. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1204930
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204930