How is LTE sampling rate calculated?
Base Sampling Rate is based on System Bandwidth (BW) and is set as follows: System BW = 1.4 MHz, Base Sampling Rate = 1.92 MHz. System BW = 3 MHz, Base Sampling Rate = 3.84 MHz. System BW = 5 MHz, Base Sampling Rate = 7.68 MHz. System BW = 10 MHz, Base Sampling Rate = 15.36 MHz.
What is LTE sampling rate?
But in all resources about LTE physical layer, it is stated that sampling rate is 30.72Mhz = 2048 samples in 66.67micro-sec.
What is the Nyquist bit rate formula for noiseless channel?
Bit Rate = 2 x bandwidth x l0g2 L In this formula, bandwidth is the bandwidth of the channel, L is the number of signal levels used to represent data, and Bit Rate is the bit rate in bits per second.
How to demodulate the OFDM signal using modulated symbols?
Demodulate the OFDM symbols. Compare the results to the original input data to show that there is negligible difference between the demodulated signal and the original data and pilot signals. Modulated OFDM symbols, specified as a 2-D array of complex symbols.
How do you demodulate a signal in MATLAB?
Apply OFDM modulation and pass the signal through the channel. Determine symbol sampling offset. OFDM demodulate the received signal. Convert path gains, pg, to scalar taps gains. Use the tap gains for equalization during signal recovery. Equalize the signal.
What kind of FFT operation is used in OFDM?
The OFDM demodulation uses an FFT operation that results in N parallel data streams. An OFDM demodulator consists of a bank of N correlators, with one correlator assigned to each OFDM subcarrier, followed by a parallel-to-serial conversion. Subcarrier Allocation and Guard Bands
How many sub-carriers are there in OFDM?
not present Parameters Metrics Number of sub-carriers 48 data +4 pilot OFDM symbol freq. 4 ms Modulation Scheme BPSK up to 64-QAM Sampling clock freq. 20 MHz