Struct TurboCode 

pub struct TurboCode {
    pub decoder: TurboDecoder,
    /* private fields */
}

A parallel concatenation of two $(13, 15)_{8}$ recursive systematic codes.

Fields

decoder: TurboDecoder

The decoder settings.

Implementations

impl TurboCode

pub fn lte(k: usize) -> Result<TurboCode>

The code of LTE: the quadratic permutation polynomial interleaver of lte_qpp for the 188 block sizes of TS 36.212 (40 to 6144), a random interleaver of the same length (seeded by RANDOM_INTERLEAVER_SEED) for any other size.

Errors

comnum_core::Error::Config for $K = 0$.

pub fn with_interleaver(interleaver: Interleaver) -> Result<TurboCode>

The code with a given interleaver (its length is $K$), the decoder of TurboDecoder::default (8 iterations of log-MAP).

Errors

comnum_core::Error::Config for an empty interleaver.

pub fn trellis(&self) -> &Trellis

The constituent trellis, the $(13, 15)_{8}$ recursive systematic code.

pub fn interleaver(&self) -> &Interleaver

The interleaver of the second encoder.

Trait Implementations

impl BlockCode for TurboCode

fn k(&self) -> usize

Information bits per block.

fn n(&self) -> usize

Coded bits per block.

fn encode_block(&self, info: &[u8]) -> Result<Vec<u8>>

Encode one block of $k$ bits.

fn decode_block(&self, llr: &[f64]) -> Result<Vec<u8>>

Decode one block of $n$ LLRs into $k$ bits.

fn encode_block_into(&self, info: &[u8], out: &mut [u8]) -> Result<()>

Encode one block of $k$ bits into the $n$ values of out (ADR 0011: the default copies BlockCode::encode_block; a code overrides it when a profile shows the copy).

fn decode_block_into(&self, llr: &[f64], out: &mut [u8]) -> Result<()>

Decode one block of $n$ LLRs into the $k$ values of out (as BlockCode::encode_block_into).

fn code_rate(&self) -> f64

Code rate $k/n$.

fn encode_stream(&self, info: &[u8]) -> Result<Vec<u8>>

Encode whole blocks.

fn decode_stream(&self, llr: &[f64]) -> Result<Vec<u8>>

Decode whole blocks.

impl Clone for TurboCode

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 TurboCode

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

Formats the value using the given formatter.

impl Decode for TurboCode

fn decode_into(&mut self, llr: &Llr, out: &mut Bits) -> Result<()>

Decode llr into out.

fn decode(&mut self, llr: &Llr) -> Result<Bits, Error>

Decode llr (allocates, calls Decode::decode_into).

impl Encode for TurboCode

fn rate(&self) -> f64

Code rate k/n.

fn encode_into(&self, info: &Bits, out: &mut Bits) -> Result<()>

Encode info into out.

fn encode(&self, info: &Bits) -> Result<Bits, Error>

Encode info (allocates, calls Encode::encode_into).

impl PartialEq for TurboCode

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

Equality operator ==.

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

Inequality operator !=.

impl SoftDecode for TurboCode

fn app_into( &self, llr: &[f64], apriori: Option<&[f64]>, out: &mut [f64], ) -> Result<usize>

The a posteriori LLRs of the second decoder after the last iteration, deinterleaved; the a priori LLRs add to the systematic channel LLRs. With 0 iterations, the systematic LLRs (and the a priori ones).

fn app(&self, llr: &[f64], apriori: Option<&[f64]>) -> Result<Vec<f64>>

SoftDecode::app_into into a new vector.

impl StructuralPartialEq for TurboCode