Class for modulating and demodulation of OFDM signals using the FFT. More...

#include <itpp/comm/ofdm.h>

Public Member Functions
	OFDM (void)
	Empty constructor.
	OFDM (int inNfft, int inNcp, int inNupsample=1)
	Constructor Nfft is the size of the FFT. Ncp is the length of the cyclic prefix. Nupsample is the upsampling factor (default=1).
int	no_carriers ()
	Return the number of carriers.
void	set_parameters (const int Nfft, const int Ncp, const int inNupsample=1)
	Set parameters.
cvec	modulate (const cvec &input)
	Modulate complex data symbols. Length of `input` must be an integer multiple of `Nfft`.
void	modulate (const cvec &input, cvec &output)
	Modulate complex data symbols. Length of `input` must be an integer multiple of `Nfft`.
cvec	demodulate (const cvec &input)
	Demodulate to complex valued symbols. Length of `input` must be an integer multiple of `Nfft+Ncp`.
void	demodulate (const cvec &input, cvec &output)
	Demodulate to complex valued symbols. Length of `input` must be an integer multiple of `Nfft+Ncp`.

Detailed Description

Class for modulating and demodulation of OFDM signals using the FFT.

The modulated signal is normalized taking into account the cyclic prefix

Definition at line 46 of file ofdm.h.

Constructor & Destructor Documentation

◆ OFDM() [1/2]

itpp::OFDM::OFDM ( void )

inline

Empty constructor.

Definition at line 50 of file ofdm.h.

Referenced by demodulate().

◆ OFDM() [2/2]

itpp::OFDM::OFDM	(	int	inNfft,
		int	inNcp,
		int	inNupsample = 1 )

Constructor Nfft is the size of the FFT. Ncp is the length of the cyclic prefix. Nupsample is the upsampling factor (default=1).

Definition at line 40 of file ofdm.cpp.

References set_parameters().

Member Function Documentation

◆ no_carriers()

int itpp::OFDM::no_carriers ( )

inline

Return the number of carriers.

Definition at line 54 of file ofdm.h.

◆ set_parameters()

void itpp::OFDM::set_parameters	(	const int	Nfft,
		const int	Ncp,
		const int	inNupsample = 1 )

Set parameters.

Definition at line 45 of file ofdm.cpp.

References it_assert.

Referenced by OFDM().

◆ modulate() [1/2]

cvec itpp::OFDM::modulate ( const cvec & input )

Modulate complex data symbols. Length of input must be an integer multiple of Nfft.

Definition at line 73 of file ofdm.cpp.

Referenced by modulate().

◆ modulate() [2/2]

void itpp::OFDM::modulate	(	const cvec &	input,
		cvec &	output )

Modulate complex data symbols. Length of input must be an integer multiple of Nfft.

Definition at line 57 of file ofdm.cpp.

References itpp::length(), and modulate().

◆ demodulate() [1/2]

cvec itpp::OFDM::demodulate ( const cvec & input )

Demodulate to complex valued symbols. Length of input must be an integer multiple of Nfft+Ncp.

Definition at line 94 of file ofdm.cpp.

◆ demodulate() [2/2]

void itpp::OFDM::demodulate	(	const cvec &	input,
		cvec &	output )