Title :
A generic conflict-free architecture for decoding LDPC codes using Perfect Difference Networks
Author :
Janakiram, Balaji ; Chandra, M. Girish ; Adiga, B.S. ; Harihara, S.G. ; Balamuralidhar, P.
Author_Institution :
Innovation Labs., TATA Consultancy Services, Bangalore, India
Abstract :
The flurry of activities in the area of low density parity check (LDPC) codes from last one decade have led to different flavors of codes and the corresponding decoders. The decoder involves computing elements and an interconnection mechanism, usually tailor made for a particular code. This paper explores a generic reconfigurable architecture for decoding different LDPC codes based on the perfect difference networks (PDNs). The architecture is conflict-free in terms of the message data access by the nodes and can also be utilized in large factor-graph based processing.
Keywords :
decoding; parity check codes; LDPC codes; decoding; factor-graph based processing; low density parity check codes; message data access; perfect difference networks; Code standards; Computer architecture; Computer networks; Digital video broadcasting; Encoding; Iterative decoding; Message passing; Parity check codes; Sparse matrices; Technological innovation;
Conference_Titel :
Communications Theory Workshop (AusCTW), 2010 Australian
Conference_Location :
Canberra, ACT
Print_ISBN :
978-1-4244-5432-7
DOI :
10.1109/AUSCTW.2010.5426777