Research Article

An Improved Channel Estimation Algorithm Based on WD-DDA in OFDM System

Table 1

Simulation parameters.

ParameterValue

Numerology ()3
Carrier frequency4 GHz
Channel bandwidth100 MHz
Sampling frequency122.88 MHz
ModulationQPSK
FFT size ()4096
Cell ID4
CPNormal
0 to 20 dB
Channel modelTDL-A
Wavelet base typeHaar
1
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