Design of LDPC Coder-Decoder Based on Cyclic Shift Matrices
Haige Xiang · 2009
In this paper,the LDPC codes used in DVB-S2 and WiMAX are analyzed.A universal structure based on cyclic shift matrices is presented for these codes.A partially parallel decoder is designed with a universal storage resource reusing architecture and serial operation processors.This decoder has been implemented on an Altera EP2S60 platform,and can work for 8064 bit code length at rates 7/8,6/8,5/8,4/8 and 3/8.Test results show that its code throughput can approach 80 Mbit/s.