ghazi-maghrebi, S., tavassoli, M., ghazi-maghrebi, M., nematollahi, R. (2019). Two Efficient Algorithms for Increasing OFDM Performance with Highly Complicated Fading Channel. Signal Processing and Renewable Energy, 3(3), 33-50.
saeed ghazi-maghrebi; mohammad hosein tavassoli; mohammad ghazi-maghrebi; reza nematollahi. "Two Efficient Algorithms for Increasing OFDM Performance with Highly Complicated Fading Channel". Signal Processing and Renewable Energy, 3, 3, 2019, 33-50.
ghazi-maghrebi, S., tavassoli, M., ghazi-maghrebi, M., nematollahi, R. (2019). 'Two Efficient Algorithms for Increasing OFDM Performance with Highly Complicated Fading Channel', Signal Processing and Renewable Energy, 3(3), pp. 33-50.
ghazi-maghrebi, S., tavassoli, M., ghazi-maghrebi, M., nematollahi, R. Two Efficient Algorithms for Increasing OFDM Performance with Highly Complicated Fading Channel. Signal Processing and Renewable Energy, 2019; 3(3): 33-50.
Two Efficient Algorithms for Increasing OFDM Performance with Highly Complicated Fading Channel
1iIslamic Azad University, Yadegar-e-Imam Khomeini (RAH) Shahre- Rey Branch, Tehran, Iran
2Communications Department, Collage of Electrical Engineering, Yadegar Imam Khomeini (RAH) Shahr-e-Rey Branch, Islamic Azad University,
Receive Date: 10 February 2019,
Accept Date: 28 May 2019
Abstract
Equalization is a kind of the preferred methods for increasing the efficiency of modern digital communication systems. The paper contribution lies in using a modified version of Sliced Mul-ti-Modulus Algorithm (S-MMA) and genetic algorithm (GA) for updating per-tone equaliza-tions taps in the OFDM modulation using too long complicated fading channel, present of dif-ferent noises and ISI impairment. For more efficiency, it is assumed that the channel impulse response is longer than the cyclic prefix length and as a result, the system will be more efficient but at the expense of the high ISI impairment. Both mathematical analysis and computer simu-lations demonstrate the better performance of the new proposed application of the S-MMA and GA are compared to commonly used equalizer methods such as the LMS, RLS and multi modu-lus algorithm (MMA) in the channels with AWGN, burst noises and ISI impairment simultane-ously. Therefore, the new modified S-MMA equalization and GA are good candidates for high speed and real-time applications such as DAB, WiFi, WiMAX, and DVB systems.
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