Title :
On the reduced-complexity of LDPC decoders for beyond 400 Gb/s serial optical transmission
Author :
Djordjevic, Ivan B. ; Xu, Lei ; Wang, Ting
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
Two reduced-complexity (RC) LDPC decoders, which can be used in combination with large-girth LDPC codes to enable beyond 400 Gb/s serial optical transmission, are proposed. We show that optimally attenuated RC min-sum sum algorithm performs only 0.45 dB worse than conventional sum-product algorithm, while having lower storage memory requirements and much lower latency.
Keywords :
optical communication; parity check codes; LDPC decoder; attenuated RC min-sum sum algorithm; bit rate 400 Gbit/s; reduced-complexity; serial optical transmission; Algorithm design and analysis; Attenuation; Bit error rate; Complexity theory; Decoding; Optical attenuators; Parity check codes;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682631
