Sliding Window Method for stochastic LDPC decoder
Jienan Chen, Jianhao Hu · 2011
This paper proposes a Sliding Window Method (SWM) for stochastic Low Density Parity Check (LDPC) decoder designing. The SWM is formulated for solving the latch-up problem in the Variable Nodes (VN) information updating. The bit in the latch-up state is evolved from the information bit in the sliding window. Then, an optimized hardware structure is proposed for SWM. Compared with traditional VN structure, the SWM require about 35% less hardware resources to achieve the same BER performance.