Serializes complex modulations symbols from OFDM sub-carriers. More...

#include <ofdm_serializer_vcc.h>

Inheritance diagram for gr::digital::ofdm_serializer_vcc:

Public Types
typedef boost::shared_ptr < ofdm_serializer_vcc >	sptr

Static Public Member Functions
static sptr	make (int fft_len, const std::vector< std::vector< int > > &occupied_carriers, const std::string &len_tag_key="frame_len", const std::string &packet_len_tag_key="", int symbols_skipped=0, const std::string &carr_offset_key="", bool input_is_shifted=true)

static sptr	make (const gr::digital::ofdm_carrier_allocator_cvc::sptr &allocator, const std::string &packet_len_tag_key="", int symbols_skipped=0, const std::string &carr_offset_key="", bool input_is_shifted=true)

Additional Inherited Members
Public Member Functions inherited from gr::tagged_stream_block
void	forecast (int noutput_items, gr_vector_int &ninput_items_required)
	Don't override this. More...

int	general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)

virtual int	work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)=0
	Just like gr::block::general_work, but makes sure the input is valid. More...

Protected Types inherited from gr::basic_block
enum	vcolor { WHITE, GREY, BLACK }

Protected Member Functions inherited from gr::tagged_stream_block
	tagged_stream_block (void)

	tagged_stream_block (const std::string &name, gr::io_signature::sptr input_signature, gr::io_signature::sptr output_signature, const std::string &length_tag_key)

virtual void	parse_length_tags (const std::vector< std::vector< tag_t > > &tags, gr_vector_int &n_input_items_reqd)
	Parse all tags on the first sample of a PDU, return the number of items per input and prune the length tags. More...

virtual int	calculate_output_stream_length (const gr_vector_int &ninput_items)
	Calculate the number of output items. More...

virtual void	update_length_tags (int n_produced, int n_ports)
	Set the new length tags on the output stream. More...

Protected Attributes inherited from gr::tagged_stream_block
std::string	d_length_tag_key_str

Detailed Description

Serializes complex modulations symbols from OFDM sub-carriers.

This is the inverse block to the carrier_allocator_cvc. It outputs the complex data symbols as a tagged stream, discarding the pilot symbols.

If given, two different tags are parsed: The first key (len_tag_key) specifies the number of OFDM symbols in the frame at the input. The second key (packet_len_tag_key) specifies the number of complex symbols that are coded into this frame. If given, this second key is then used at the output, otherwise, len_tag_key is used. If both are given, the packet length specifies the maximum number of output items, and the frame length specifies the exact number of consumed input items.

It is possible to correct a carrier offset in this function by passing another tag with said offset.

Input: Complex vectors of length fft_len Output: Complex scalars, in the same order as specified in occupied_carriers.

Member Typedef Documentation

typedef boost::shared_ptr<ofdm_serializer_vcc> gr::digital::ofdm_serializer_vcc::sptr

Member Function Documentation

static sptr gr::digital::ofdm_serializer_vcc::make	(	int	fft_len,
		const std::vector< std::vector< int > > &	occupied_carriers,
		const std::string &	len_tag_key = `"frame_len"`,
		const std::string &	packet_len_tag_key = `""`,
		int	symbols_skipped = `0`,
		const std::string &	carr_offset_key = `""`,
		bool	input_is_shifted = `true`
	)

static

Parameters

fft_len	FFT length
occupied_carriers	See ofdm_carrier_allocator_cvc.
len_tag_key	The key of the tag identifying the length of the input frame in OFDM symbols.
packet_len_tag_key	The key of the tag identifying the number of complex symbols in this packet.
symbols_skipped	If the first symbol is not allocated as in `occupied_carriers`[0], set this
carr_offset_key	When this block should correct a carrier offset, specify the tag key of the offset here (not necessary if following an ofdm_frame_equalizer_vcvc)
input_is_shifted	If the input has the DC carrier on index 0 (i.e. it is not FFT shifted), set this to false

static sptr gr::digital::ofdm_serializer_vcc::make	(	const gr::digital::ofdm_carrier_allocator_cvc::sptr &	allocator,
		const std::string &	packet_len_tag_key = `""`,
		int	symbols_skipped = `0`,
		const std::string &	carr_offset_key = `""`,
		bool	input_is_shifted = `true`
	)

static

Parameters

allocator	The carrier allocator block of which this shall be the inverse
packet_len_tag_key	The key of the tag identifying the number of complex symbols in this packet.
symbols_skipped	If the first symbol is not allocated as in `occupied_carriers`[0], set this
carr_offset_key	When this block should correct a carrier offset, specify the tag key of the offset here (not necessary if following an ofdm_frame_equalizer_vcvc)
input_is_shifted	If the input has the DC carrier on index 0 (i.e. it is not FFT shifted), set this to false

The documentation for this class was generated from the following file:

ofdm_serializer_vcc.h

Public Types

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Member Function Documentation