Title :
LDPC codes based on MPEG algorithm for block fading channels
Author :
Shan Ding ; Ya-nan Zhao
Author_Institution :
Coll. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China
Abstract :
This paper presents a novel algorithm to design Root-LDPC codes based on improved PEG algorithm for block fading channels. The modified Progressive Edge-Growth (MPEG) algorithm is a PEG algorithm with Approximated Cycle Extrinsic Message Degree (ACE) metric, which is used to describe the connectivity of cycles. The approach can maximize the girth of the cycles, improve the connectivity of cycles. Simulation results demonstrate that the algorithm we proposed can achieve full diversity and significantly better code performance, suitable to different fading blocks. From medium to high SNR, the average required number of iterations can be decreased.
Keywords :
block codes; fading channels; parity check codes; LDPC codes; MPEG algorithm; approximated cycle extrinsic message degree metric; block fading channels; modified progressive edge growth algorithm; Algorithm design and analysis; Approximation algorithms; Encoding; Fading; Parity check codes; Signal to noise ratio; Transform coding; ACE; PEG; block fading channels; cooperative Root Low-Density Parity-Check (Root-LDPC);
Conference_Titel :
TENCON 2013 - 2013 IEEE Region 10 Conference (31194)
Conference_Location :
Xi´an
Print_ISBN :
978-1-4799-2825-5
DOI :
10.1109/TENCON.2013.6718855
