A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms
A new variable step size (VSS) control technique employing cross correlation between channel output and error signal has been proposed as a solution to the problem of slow convergence of blind and non-blind equalization algorithms. The new method resolves the conflict between the convergence rate an...
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| Format: | Article |
| Language: | English |
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Spolecnost pro radioelektronicke inzenyrstvi
2013-04-01
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| Series: | Radioengineering |
| Subjects: | |
| Online Access: | http://www.radioeng.cz/fulltexts/2013/13_01_0044_0051.pdf |
| _version_ | 1819297020552151040 |
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| author | E. Tuğcu F. Çakır A. Ozen |
| author_facet | E. Tuğcu F. Çakır A. Ozen |
| author_sort | E. Tuğcu |
| collection | DOAJ |
| description | A new variable step size (VSS) control technique employing cross correlation between channel output and error signal has been proposed as a solution to the problem of slow convergence of blind and non-blind equalization algorithms. The new method resolves the conflict between the convergence rate and low steady state error of the fixed step-size conventional blind and non-blind equalization algorithms, such as Constant Modulus Algorithm (CMA) and Least Mean Squares (LMS) algorithm. Computer simulations have been performed to verify the performance of the proposed method in frequency selective Rayleigh fading channels. The proposed technique has been compared with the popular non-blind equalizers, LMS and Recursive Least Squares (RLS) algorithms, and blind equalizers, the conventional CMA, Zhao’s VSS-CMA and Demir’s VSS-CMA as benchmarks. The obtained simulation results have demonstrated that the proposed VSS-CMA and VSS-LMS algorithms have considerably better performance than the conventional CMA, Zhao’s VSS-CMA and Demir’s VSS-CMA blind equalization algorithms, and the conventional LMS non-blind equalization algorithm. |
| first_indexed | 2024-12-24T05:07:22Z |
| format | Article |
| id | doaj.art-4e6b43a1d2364e388d30f4cf6cbcde78 |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-12-24T05:07:22Z |
| publishDate | 2013-04-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-4e6b43a1d2364e388d30f4cf6cbcde782022-12-21T17:13:47ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122013-04-012214451A New Step Size Control Technique for Blind and Non-Blind Equalization AlgorithmsE. TuğcuF. ÇakırA. OzenA new variable step size (VSS) control technique employing cross correlation between channel output and error signal has been proposed as a solution to the problem of slow convergence of blind and non-blind equalization algorithms. The new method resolves the conflict between the convergence rate and low steady state error of the fixed step-size conventional blind and non-blind equalization algorithms, such as Constant Modulus Algorithm (CMA) and Least Mean Squares (LMS) algorithm. Computer simulations have been performed to verify the performance of the proposed method in frequency selective Rayleigh fading channels. The proposed technique has been compared with the popular non-blind equalizers, LMS and Recursive Least Squares (RLS) algorithms, and blind equalizers, the conventional CMA, Zhao’s VSS-CMA and Demir’s VSS-CMA as benchmarks. The obtained simulation results have demonstrated that the proposed VSS-CMA and VSS-LMS algorithms have considerably better performance than the conventional CMA, Zhao’s VSS-CMA and Demir’s VSS-CMA blind equalization algorithms, and the conventional LMS non-blind equalization algorithm.www.radioeng.cz/fulltexts/2013/13_01_0044_0051.pdfCross correlationVSS-CMAVSS-LMSblind equalizationadaptive blind and non-blind training |
| spellingShingle | E. Tuğcu F. Çakır A. Ozen A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms Radioengineering Cross correlation VSS-CMA VSS-LMS blind equalization adaptive blind and non-blind training |
| title | A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms |
| title_full | A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms |
| title_fullStr | A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms |
| title_full_unstemmed | A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms |
| title_short | A New Step Size Control Technique for Blind and Non-Blind Equalization Algorithms |
| title_sort | new step size control technique for blind and non blind equalization algorithms |
| topic | Cross correlation VSS-CMA VSS-LMS blind equalization adaptive blind and non-blind training |
| url | http://www.radioeng.cz/fulltexts/2013/13_01_0044_0051.pdf |
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