Struct OfdmFrame 

pub struct OfdmFrame {
    pub ofdm: Ofdm,
    pub grid: ResourceGrid,
    pub n_grids: usize,
    pub n_ports: usize,
    pub n_data_symbols: usize,
    pub scale: f64,
}

An OFDM frame: what the receiver needs to undo transmit.

Fields

ofdm: Ofdm

The modulator.

grid: ResourceGrid

The resource grid of every group of n_symbols OFDM symbols.

n_grids: usize

Grids in the frame.

n_ports: usize

Transmit antennas (ports).

n_data_symbols: usize

Data symbols per antenna before the padding of the last grid.

scale: f64

Amplitude of the time samples, $\sqrt{K/(L N)}$.

Implementations

impl OfdmFrame

pub fn data_res(&self) -> Vec<usize>

The data resource elements of a grid, symbol after symbol (indices l K + k, ResourceGrid::data_indices).

pub fn symbol_middles(&self, g: usize) -> Vec<usize>

The sample at the middle of every OFDM symbol of grid g (after the prefix): the instant at which a genie-aided receiver takes the channel.

pub fn active_bins(&self) -> Vec<usize>

The FFT bins of the active subcarriers.

pub fn received_grid( &self, streams: &[Vec<C64>], g: usize, ) -> Result<Vec<Vec<C64>>>

The demodulated grid g of every receive antenna, [rx][l K + k].

Errors

comnum_core::Error::Shape if a stream is shorter than the frame.

pub fn estimate( &self, rx: &[Vec<C64>], noise_var: f64, method: &FrequencyInterpolation, ) -> Result<Vec<C64>>

The channel of every resource element estimated from the pilots of every port, [re][rx][tx] flattened, from the received grids rx (OfdmFrame::received_grid).

Errors

The errors of estimate_port.

pub fn detect<F>( &self, streams: &[Vec<C64>], channel: F, receiver: &Receiver, settings: &FrameDetection, ) -> Result<SoftOutput>

where F: FnMut(usize, &[Vec<C64>]) -> Result<Vec<C64>>,

Detect every data resource element of the frame received on streams: the channel of grid g is channel(g, rx) ([re][rx][tx] flattened, from the received grids rx), multiplied by the gain of settings. The padding of the last grid is left out.

Errors

The errors of FrameDetection::check, of channel and of Receiver::detect_uses (an odd number of data resource elements with Alamouti’s code).

Trait Implementations

impl Clone for OfdmFrame

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OfdmFrame

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for OfdmFrame

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for OfdmFrame