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A (2+1)-dimensional displacement shallow water wave system for perfect fluid has been constructed, recently. The displacement system was modified and the term related to the fluid viscosity was added to the model by means of dimensional analysis in this paper. For ideal fluids, the modified displacement system will degenerate to displacement system. Meanwhile, we studied the symmetries and similarity...
Orthogonal Frequency Division Multiplexing (OFDM) technology has high spectrum efficiency and good anti-multipath interference capacity, but it has an inherent shortcoming that high peak-average power ratio (PAPR). Select Mapping (SLM) method is an effective algorithm to reduce Peak to Average Power Ratio (PAPR) of OFDM (Orthogonal Frequency Division Multiplexing) signal, and does not bring about...
Orthogonal Frequency Division Multiplexing (OFDM) technology is a high-speed information transmission technology with multi-path resistance, one greatest drawback for it is existing high peak power and average power ratio (Peak-to-Average Power Ratio, PAPR). Partial Transmit Sequence (PTS) method is an effective algorithm to reduce PAPR of the OFDM system, and it will not bring about any distortion...
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