Title :
Optimized Soft-Decision De-Mapping for Chinese Terrestrial DTV Standard
Author :
Zhang, Zhan ; Zhang, Yan-Zhong ; Zhang, Xiao-Lin ; Fang, Lin-Tang
Author_Institution :
Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing, China
Abstract :
An optimized soft-decision de-mapping method for Chinese Terrestrial DTV(Digital TV) Broadcasting Standard is proposed, which can be used on 64QAM, 32QAM, 16QAM and 4QAM de-mapping that compliant with the standard. Using the simplified de-mapping algorithm, the hardware resource usage and working speed are both optimized. Especially for 32QAM mode, comparing to traditional method, 75% hardware resource is saved, and the maximum working speed is 11% faster. This method is already implemented in the Chinese Terrestrial DTV receiver.
Keywords :
digital television; quadrature amplitude modulation; Chinese terrestrial DTV broadcasting standard; Chinese terrestrial DTV receiver; optimized soft-decision de-mapping; Broadcasting; Digital TV; Equations; Field programmable gate arrays; Hardware; Mathematical model; Receivers;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5600230
