Howtosignalprocessing
- What is OFDM in simple terms?
- How to generate OFDM signal?
- How to generate OFDM signal in Matlab?
- How is QAM used in OFDM?
What is OFDM in simple terms?
What is orthogonal frequency-division multiplexing (OFDM)? Orthogonal frequency-division multiplexing is a method of data transmission where a single information stream is split among several closely spaced narrowband subchannel frequencies instead of a single Wideband channel frequency.
How to generate OFDM signal?
Generate OFDM Modulated Waveform for Extended Cyclic Prefix
Generate a waveform by performing OFDM modulation of a resource array that contains physical downlink shared channel (PDSCH) demodulation reference signal (DM-RS) symbols. Set carrier configuration parameters, specifying a subcarrier spacing of 60 kHz.
How to generate OFDM signal in Matlab?
waveform = hMod( insignal ) applies OFDM modulation the specified baseband signal and returns the modulated OFDM baseband signal. waveform = hMod( data , pilot ) assigns the pilot signal, pilot , into the frequency subcarriers specified by the PilotCarrierIndices property value of the hMod system object.
How is QAM used in OFDM?
An OFDM carrier signal is the sum of a number of orthogonal subcarriers, with baseband data on each subcarrier being independently modulated commonly using some type of quadrature amplitude modulation (QAM) or phase-shift keying (PSK). This composite baseband signal is typically used to modulate a main RF carrier.
