典型文献
High Robust Broadcasting over DTMB-A with Low-rate LDPC Codes
文献摘要：
As the 2nd generation digital terrestrial television broadcasting(DTTB)standard,digital ter-restrial/television multimedia broadcasting-advanced(DTMB-A)can provide higher spectrum efficiency and transmission reliability by adopting flexible frame structure and advanced forward error correction cod-ing compared with the 1st generation DTTB systems.In order to increase the flexibility and robustness of the DTTB network,the frequency reuse scheme of factor one(reuse-1)is proposed,where the same RF channel is used by different stations covering the adjacent ser-vice areas.However,it demands a very low carrier-to-noise ratio(C/N)threshold below 0dB at the DTTB physical layer.In this paper,a robust broadcasting technique is proposed based on DTMB-A with newly designed low-rate low density parity check(LDPC)codes.By adopting quasi-cyclic(QC)Raptor-like structure and progressive lifting method,the high per-formance low-rate LDPC codes are designed support-ing multiple code lengths.Both density-evolution analyses and laboratory measurements demonstrate that DTMB-A with low-rate coding can complete the demodulation reliably with the C/N threshold below 0dB,which is one important necessary condition to support frequency reuse-1 scheme.
文献关键词：
中图分类号：
作者姓名：
Chao Zhang;Kewu Peng;Zhitong He;Yonglin Xue;Hui Yang
作者机构：
Department of Electronic Engineering,Tsinghua University,Beijing 100084,China;Beijing National Research Center for Information Science and Technology(BNRist),Beijing 100084,China;Peng Cheng Laboratory,Shenzhen 518055,China;Key Laboratory of Digital TV System of Guangdong Province and Shenzhen City,Shenzhen 518057,China;Beijing National Research Center for Information Science and Technology(BNRist),Beijing 100084,China 3 Peng Cheng Laboratory,Shenzhen 518055,China
文献出处：
引用格式：
[1]Chao Zhang;Kewu Peng;Zhitong He;Yonglin Xue;Hui Yang-.High Robust Broadcasting over DTMB-A with Low-rate LDPC Codes)[J].中国通信（英文版）,2022(03):192-201
A类：
DTTB
B类：
High,Robust,Broadcasting,DTMB,Low,LDPC,Codes,2nd,generation,digital,terrestrial,television,broadcasting,standard,multimedia,advanced,can,provide,higher,spectrum,efficiency,transmission,reliability,by,adopting,flexible,frame,structure,forward,error,correction,compared,1st,systems,In,order,increase,flexibility,robustness,network,frequency,reuse,scheme,one,proposed,where,same,RF,channel,used,different,stations,covering,adjacent,ser,vice,areas,However,demands,very,carrier,noise,threshold,below,0dB,physical,layer,this,paper,technique,newly,designed,density,parity,check,codes,By,quasi,cyclic,QC,Raptor,like,progressive,lifting,method,formance,support,multiple,lengths,Both,evolution,analyses,laboratory,measurements,demonstrate,that,coding,complete,demodulation,reliably,which,important,necessary,condition
AB值：
0.574353
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