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Exact(20)
Figure 2 Single parity check irregular repetition coded BICM-ID with EM.
Then, the single parity check (SPC) block code is utilized to approach the lower bound.
The simplest two designs of G are the repetition code and the single parity check code.
The binary bit information sequence u to be transmitted is encoded by, first, a single parity check code where a single parity bit is added to every d c - 1 information bits, followed by a repetition code.
The reduction is based on exploiting part of the coding gain of a simple single parity check product code.
The compaction is achieved by using a simple single parity check product code (SPCPC) which limits the constellation points to certain ones.
Similar(40)
These codes exploit the serial concatenation of very simple components, similarly to what is proposed in [25], where single parity-check component codes are used.
The fourth code is an interleaved product code having, as components, a (n 1=64, k 1=51) PEG code and a (n 2=16, k 2=15) single parity-check code.
A product accumulate code, as illustrated in Figure 1(a), consists of an accumulator (or a differential encoder) as the inner code, and a parallel concatenation of 2 branches of single-parity check codes as the outer code.
Product accumulate codes, proposed in [4] and depicted in Figure 1, are a class of serially concatenated codes, where the inner code is a differential encoder, and the outer code is a parallel concatenation of two branches of single-parity check (SPC) codes or a structured LDPC code comprising degree-1 and degree-2 variable nodes.
During the analyses, adjustments were made for: maternal educational attainment, age, single motherhood, parity, maternal country of birth, and child's gender.
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