Abstract
Low-density parity-check (LDPC) codes with protograph-based raptor-like (PBRL) structure have been chosen as the data channel coding scheme for the fifth-generation (5G) enhanced mobile broad band (eMBB) services. However, these 5G LDPC codes are not optimized for the scenarios of Ultra Reliable and Low Latency Communications (URLLC) and massive Machine Type Communications (mMTC) in which small transport block sizes are usually used. In this paper, a new method is proposed to construct PBRL LDPC codes for URLLC and mMTC. This method incorporates degree-distribution optimization, base matrix derived from parity-check matrix of quadratic residue codes, masking technique and modified progressive-edge-growth (PEG) algorithm. Simulation results show that the proposed PBRL LDPC codes outperform 5G LDPC short codes in terms of error-correcting performance.
| Original language | English |
|---|---|
| Pages (from-to) | 5290-5301 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Communications |
| Volume | 72 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 23 Apr 2024 |
Keywords
- 5G mobile communication
- Codes
- Finite element analysis
- Parity check codes
- PBRL LDPC code
- QC-LDPC code
- QR codes
- quadratic residue code
- Standards
- Ultra reliable low latency communication
ASJC Scopus subject areas
- Electrical and Electronic Engineering