A low-complexity Reed-Solomon decoder for PON
Jun Xie, Xiaodong Tu · 2008
In this paper, a low-complexity Reed-Solomon (RS) (255,239) decoder architecture using a novel half folding Modified Euclidean (ME) algorithm is proposed for PON system. A new key equation solver using ME algorithm is proposed. The operation cycles is reduced to less than 127 by using the zero leading coefficients detector for polynomial. The time multiplexing and resource sharing schemes can be used in the recursive ME algorithm to reduce the logic gate count. The new key equation solver can be shared by two decoder macro. The resource utilization is reduced about 35% comparing to the conventional method