Digital Image Processing

Khaled A. Ramadan ¹, Emad S. Hassan ², Xu Zhu ³, Abd-Elnaby Mohammed ⁴, EL-Sayed M. El-Rabaie ⁵, Fathi E.Abd El-Samie ⁶

Affiliations
1 ERTU (Egyptian Radio & TV Union), Cairo, EG
2 Dept.of Electronics and Electrical Communications, Menoufia University, EG
3 Huazhong University of Science and Technology, Wuhan, CN
4 Department of Electronics and Electrical Communication, Menoufia University, Menouf, EG
5 Electronic and Communication Engineering Dept., Menoufia University, EG
6 Department of Electronics and Electrical Communications, Menoufia University, Menouf, EG

Abstract

In this paper, we study the performance of the Digital Video Broadcasting-Terrestrial (DVB-T) system with Continuous Phase Modulation Orthogonal Frequency Division Multiplexing(CPM-OFDM). The proposed structure combines the advantage of mitigating the Peak-to-Average Power Ratio (PAPR) problem in the Power Amplifier (PA) in addition to exploiting the channel frequency diversity and power efficiency of CPM. The proposed CPM-OFDMDVB-T system is implemented with Frequency-Domain Equalization(FDE) to avoid the complexity of the equalization. Two types of frequency domain equalizers are considered and compared for performance evaluation of the system; the Zero-Forcing (ZF)equalizer and the Minimum Mean Square Error (MMSE) equalizer.Simulation results show that the performance of the CPM-OFDMDVB-T system with multi-path fading is better than its performance with single-path fading.

Keywords

DVB-T, OFDM, CPM, ZF Equalizer, MMSE Equalizer, PAPR.

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