Title :
Joint Optimization of LDPC Codes with EXIT Chart
Author :
Zhang, Yuling ; He, Wenwei ; Zhang, Fuzeng
Author_Institution :
Sch. of Comput. Sci. & Technol., Ludong Univ., Yantai
Abstract :
A joint optimization method of LDPC codes using EXIT chart is introduced in this paper. Based on the design method proposed by Brink, we take into account the variable nodes degree and check nodes degree together in the code design process, other than fixing the check nodes degree in advance. Compared with the non-joint design method, the joint optimization method can generate LDPC codes with nearer Shannon limit performance.
Keywords :
optimisation; parity check codes; EXIT chart; LDPC codes; Shannon limit performance; check nodes degree; extrinsic information transfer chart; joint optimization; low density parity check codes; variable nodes degree; Block codes; Computer science; Design methodology; Design optimization; Helium; IEEE members; Iterative decoding; Optimization methods; Parity check codes; Process design;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.361
