Title :
A Novel Single-Carrier Digital Broadcasting System Based on LDPC Codes in Shortwave
Author :
Hui Ma ; Hang Yin ; Hongfei Guo ; Jianhua Zhao
Author_Institution :
Eng. Center of Digital Audio & Video Commun., Univ. of China, Beijing, China
Abstract :
In this paper, a novel single-carrier digital broadcasting system applying LDPC codes in shortwave on the basis of the DRM system is designed. The system uses short LDPC codes to replace the multilevel coding in DRM, and is based on the single-carrier block transmission technology. Compared with the standard DRM systems, it has a simple process, a low requirement for the power amplifier and power consumption in the transmitter. So that it is easy to meet the needs of portable transmitter and receiver. The simulation shows that the novel system can provide better performance compared to the existing DRM systems in the DRM channel model. It is an effective scheme which can realize long-distance and wide-range covering in the power-limited circumstances.
Keywords :
broadcasting; digital radio; parity check codes; DRM channel model; LDPC; digital radio modiale; low-density parity-check code; multilevel coding; portable receiver; portable transmitter; power amplifier; power consumption; power-limitation; shortwave communication; single-carrier block transmission technology; single-carrier digital broadcasting system; Broadcasting; Channel coding; Modulation; OFDM; Parity check codes; LDPC codes; digital broadcasting; shortwave; single-carrier;
Conference_Titel :
Computer and Information Technology (CIT), 2014 IEEE International Conference on
Conference_Location :
Xi´an
DOI :
10.1109/CIT.2014.66
