Novel Extending Scheme for the Construction of Rate-Compatible IRA-Like Codes

Author

Wenwen Li ; Jing Lei ; Er-bao Li ; Baoguo Li

Author_Institution

Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

fYear

2015

fDate

11-14 May 2015

Firstpage

1

Lastpage

5

Abstract

In this paper, a novel extending algorithm is proposed for the construction of rate compatible (RC) irregular repeat accumulate like (IRA-like) codes. Based on the structure characters of IRA-like codes, we propose an extending algorithm with uniform check node degree distribution and strong dependency in parity check matrix. Lower rate codes constructed through this method are efficiently encodable and well performed. Starting from initial code rate 8/16, the designed extending algorithm combining with existing puncturing algorithm realizes a series of RC IRA-like codes with rate R = 8/24, 8/23... 8/9. Simulation results show that the constructed RC IRA-like codes outperform those of similar algorithms from 0.04dB to 0.4 dB.

Keywords

parity check codes; extending algorithm; irregular repeat accumulate like code; parity check matrix; rate compatible IRA-like code; strong dependency; uniform check node degree distribution; Algorithm design and analysis; Bit error rate; Encoding; Parity check codes; Performance gain; Simulation; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2015 IEEE 81st

Conference_Location

Glasgow

Type

conf

DOI

10.1109/VTCSpring.2015.7145956

Filename

7145956