In wireless sensor networks. the reliability of communication can be greatly improved by applying low-density parity-check (LDPC) codes. Algorithms based on progressive-edge-growth (PEG) pattern and quasi-cyclic (QC) pattern are the mainstream approaches to constructing LDPC codes with good performance. However. https://www.roneverhart.com/PG201004AV-Air-Compressor-Tank-Bushing-2-X-1-4-Campbell-Hausfeld/