OFDM Modulation Blocks
[Physical Layer Reference Implementation]

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Detailed Description

This section deals with the physical layer procedures related to OFDM modulation.

Functions
void	PHY_ofdm_mod (int *input, int *output, unsigned char log2fftsize, unsigned char nb_symbols, unsigned char nb_prefix_samples, short *twiddle_ifft, unsigned short *rev, Extension_t etype)
	This function performs OFDM modulation with cyclic extension or zero-padding.

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Function Documentation

void PHY_ofdm_mod	(	int *	input,
		int *	output,
		unsigned char	log2fftsize,
		unsigned char	nb_symbols,
		unsigned char	nb_prefix_samples,
		short *	twiddle_ifft,
		unsigned short *	rev,
		Extension_t	etype
	)

This function performs OFDM modulation with cyclic extension or zero-padding.

Parameters:

	input	The sequence input samples in the frequency-domain. This is a concatenation of the input symbols in SIMD redundant format
	output	The time-domain output signal
	log2fftsize	Base-2 logarithm of the OFDM symbol size ()
	nb_symbols	The number of OFDM symbols in the block
	nb_prefix_samples	The number of prefix/suffix/zero samples
	twiddle_ifft	Pointer to the ifft twiddle factors
	rev	Pointer to the bit-reversal permutation
	etype	Type of extension (CYCLIC_PREFIX,CYCLIC_SUFFIX,ZEROS)

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