Ldpc code rate

1. What is code rate in LDPC?
2. How many bits can LDPC correct?
3. What is the advantage of LDPC codes?
4. What is LDPC coding in 5G?

What is code rate in LDPC?

1. 5G NR LDPC base-graph structure. mainly designed for block-sizes within approximately 300 to 8448 bits, code-rates between approximately 8/9 and 1/3, and further lower rates via repetition. the given information block-size K, from the defined set above.

How many bits can LDPC correct?

Ignoring any lines going out of the picture, there are eight possible six-bit strings corresponding to valid codewords: (i.e., 000000, 011001, 110010, 101011, 111100, 100101, 001110, 010111). This LDPC code fragment represents a three-bit message encoded as six bits.

What is the advantage of LDPC codes?

By using iterative belief propagation techniques, LDPC codes can be decoded in time linear to their block length [7] The two most important advantages of LDPC codes are absence of low-weight code words and iterative decoding of lower complexity.

What is LDPC coding in 5G?

Low-Density Parity- Check (LDPC) codes are linear error-correcting codes. According to the 3rd Generation Partnership Project (3GPP) TS 38.212, LDPC is recommended for the Fifth-generation (5G) New Radio (NR) shared channels due to its high throughput, low latency, low decoding complexity and rate compatibility.