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Information Journal Paper

Title

PERFORMANCE ANALYSIS OF SVM-TYPE PER TONE EQUALIZER USING BLIND AND RADIUS DIRECTED ALGORITHMS FOR OFDM SYSTEMS

Pages

  73-78

Keywords

CONSTANT MODULUS ALGORITHM (CMA) 
MULTI-MODULUS ALGORITHM (MMA) 
SUPPORT VECTOR MACHINE (SVM) 
ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) 

Abstract

 In this paper, we present Support Vector Machine (SVM) -based blind per tone equalization for OFDM systems. Blind per tone equalization using Constant Modulus Algorithm (CMA) and Multi-Modulus Algorithm (MMA) are used as the comparison benchmark. The SVM-based cost function utilizes a CMA-like error function and the solution is obtained by means of an Iterative Re-Weighted Least Squares Algorithm (IRWLS). Moreover, like CMA, the error function allows to extend the method to multilevel modulations. In this case, a dual mode algorithm is proposed. Dual mode equalization techniques are commonly used in communication systems working with multilevel signals. Practical blind algorithms for multilevel modulation are able to open the eye of the constellation, but they usually exhibit a high residual error. In a dual mode scheme, once the eye is opened by the blind algorithm, the system switches to another algorithm, which is able to obtain a lower residual error under a suitable initial ISI level. Simulation experiments show that the performance of blind per tone equalization using support vector machine has better than blind per tone equalization using CMA and MMA, from viewpoint of average Bit-Error Rate (BER).

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    APA: Copy

    HAJI BAGHER NAEENI, BABAK, & AMINDAVAR, HAMIDREZA. (2013). PERFORMANCE ANALYSIS OF SVM-TYPE PER TONE EQUALIZER USING BLIND AND RADIUS DIRECTED ALGORITHMS FOR OFDM SYSTEMS. JOURNAL OF INFORMATION SYSTEMS AND TELECOMMUNICATION (JIST), 1(2), 73-78. SID. https://sid.ir/paper/332633/en

    Vancouver: Copy

    HAJI BAGHER NAEENI BABAK, AMINDAVAR HAMIDREZA. PERFORMANCE ANALYSIS OF SVM-TYPE PER TONE EQUALIZER USING BLIND AND RADIUS DIRECTED ALGORITHMS FOR OFDM SYSTEMS. JOURNAL OF INFORMATION SYSTEMS AND TELECOMMUNICATION (JIST)[Internet]. 2013;1(2):73-78. Available from: https://sid.ir/paper/332633/en

    IEEE: Copy

    BABAK HAJI BAGHER NAEENI, and HAMIDREZA AMINDAVAR, “PERFORMANCE ANALYSIS OF SVM-TYPE PER TONE EQUALIZER USING BLIND AND RADIUS DIRECTED ALGORITHMS FOR OFDM SYSTEMS,” JOURNAL OF INFORMATION SYSTEMS AND TELECOMMUNICATION (JIST), vol. 1, no. 2, pp. 73–78, 2013, [Online]. Available: https://sid.ir/paper/332633/en

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