Title :
Box-minus operation and application in sum-product algorithm
Author :
Tong, Shaocheng ; Wang, Peng ; Wang, Dongping ; Wang, Xiongfei
Author_Institution :
State Key Lab of ISN, Xidian Univ., Xi´an, China
Abstract :
A new expression for box-minus operation, i.e. the inverse of box-plus operation, is derived, with which the box-minus operation can be implemented by a small look-up table. Its application in the sum-product algorithm is investigated.
Keywords :
computational complexity; decoding; parity check codes; table lookup; LDPC codes; box-minus operation; computational complexity; decoding; lookup table; low density parity check codes; sum-product algorithm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20057447
