Title :
A Novel HARQ Using Grouping and Encoding Technique
Author :
Wu, Jianming ; Xue, Jinyin ; Taniguchi, Tomohiko
Author_Institution :
Fujitsu R&D Center Co. Ltd., Beijing, China
Abstract :
In this paper, a novel HARQ scheme is proposed by grouping the information bit portion from failed packet and the new information bit portion from new transmit packet, and then both portions are encoded by CRC and turbo code. In the reception, both bit portions are jointly decoded to obtain grouped HARQ coding gain. System level simulation demonstrates that grouping based HARQ achieves 15% sector throughput gain as opposed to conventional Chase-combining HARQ by slightly suffering transmit latency and only adding an ACK/NAK bit.
Keywords :
automatic repeat request; channel coding; cyclic redundancy check codes; turbo codes; CRC; HARQ; encoding technique; grouping; turbo code; Costs; Cyclic redundancy check; Decoding; Delay; Encoding; Laboratories; Research and development; Throughput; Turbo codes; Wireless communication;
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th
Conference_Location :
Anchorage, AK
Print_ISBN :
978-1-4244-2514-3
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2009.5378695
