Programmable LDPC Decoder for Wireless Network

Low density parity check (LDPC) code is adopted to high quality satellite broadcast standard in Europe and having been given attention to channel coding of mobile communication due to its high performance. Partially parallel decoding architecture uses less size of the chip. In this paper, we combined the partially parallel architecture with Benes network and implemented LDPC decoder which reduces size of interconnection and supports variable parity-check matrices. The proposed architecture supports multiple code rates and moderate codeword lengths.