ABSTRACT
This chapter provides an overview on wireless channel coding, as well as low-density parity-check (LDPC) decoding and shortening. It reviews the existing work on joint protocol-channel decoding and develops our multilayer iterative decoding scheme for LDPC codes using deterministic bits. It presents numerical results to justify the performance of the proposed scheme. Forward error correction (FEC) is a method commonly used in wireless communications to handle losses, enabling a receiver to correct errors/losses without further interaction with the sender. Using deterministic bits in decoding is also known as “shortening” from the perspective of channel coding theory. During each decoding iteration, the decoded symbol from the physical layer is passed to upper layer packet analyzers to find the deterministic bits. The FEC encoder follows the transmission frame to organize the encoding block and generate parity bits. FEC is a method commonly used in wireless communications to handle losses, enabling a receiver to correct errors/losses without further interaction with the sender.
