Title :
The Rate-Compatible Multi-Edge Type LDPC Codes with Short Block Length
Author :
You, Ying ; Xiao, Min ; Wang, Lin
Author_Institution :
Dept. of Commun. Eng., Xiamen Univ., Xiamen, China
Abstract :
In this letter, a framework of punctured rate-compatible multi-edge-type LDPC (RC-MET-LDPC) codes with short block length is presented. The simple form of traditional puncturing algorithms based on grouping and sorting (GS) algorithm can be applied for obtaining rate compatibility because of the structure advantage of MET-LDPC codes over conventional LDPC codes. The simulation results show that RCMET-LDPC codes not only outperform rate-compatible irregular LDPC codes and efficiently-encodable rate-compatible (E2RC) LDPC codes in a large rate range over AWGN channel, but also achieve high throughput in HARQ scheme at a wide range of signal-to-noise ratio (SNR) regions. The proposed codes are considered as the good candidate for future communication systems requiring rate compatibility.
Keywords :
AWGN channels; automatic repeat request; block codes; channel coding; parity check codes; AWGN channel; HARQ scheme; grouping-sorting algorithm; hybrid automatic repeat request; multiedge type LDPC code; punctured rate-compatible code; short block length; AWGN channels; Algorithm design and analysis; Automatic repeat request; Bit error rate; Parity check codes; Signal to noise ratio; Sorting; Throughput; Time varying systems; Transmitters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5301898
