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Continuous Phase Modulation for Digital Video Broadcasting
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-OFDM
DVB-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-OFDM
DVB-T system with multi-path fading is better than its performance
with single-path fading.
Keywords
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