Enhancements on Coding and Modulation Schemes for LTE-Based 5G Terrestrial Broadcast System

被引：18

作者：

Xu, Yin ^{[1
]}

Gao, Na ^{[1
]}

Hong, Hanjiang ^{[1
]}

Cai, Yang ^{[1
]}

Duan, Xiaohan ^{[1
]}

He, Dazhi ^{[1
]}

Wu, Yiyan ^{[2
]}

Zhang, Wenjun ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Shanghai 200240, Peoples R China

[2] Commun Res Ctr, Wireless Technol Res Dept, Ottawa, ON K2L 2K8, Canada

来源：

IEEE TRANSACTIONS ON BROADCASTING | 2020年 / 66卷 / 02期

基金：

中国国家自然科学基金;

关键词：

LTE-based 5G terrestrial broadcast system; 3GPP; coding modulation schemes; NUC; LDPC codes; PARITY-CHECK CODES; ATSC; 3.0; PERFORMANCE ANALYSIS; CONSTELLATIONS;

D O I：

10.1109/TBC.2020.2981772

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Broadcasting and broadband network is moving towards integration and LTE-based 5G terrestrial broadcast is now researched in Release 16 in Third Generation Partnership Project (3GPP) standardization meetings. However, the work scope of LTE-based 5G terrestrial broadcast focuses on specifying new numerologies and some minor improvement on cell acquisition subframe, which is insufficient. In this paper, limitations in coding and modulation schemes of LTE-based 5G terrestrial broadcast system, e.g., Turbo codes and Quadrature Amplitude Modulation (QAM), are detailedly analyzed. To further enhance the spectrum efficiency of LTE-based 5G terrestrial broadcast system, LDPC (Low Density Parity Check) codes from 5G new radio (NR) standard and newly designed non-uniform constellations (NUCs) are adopted in this paper to replace Turbo codes and QAM respectively. Extensive simulations and complexity analysis show that the proposed LDPC coding and NUC modulation scheme, either standalone or combined, can provide significant performance gain over Additive White Gaussian Noise (AWGN) and Tapped Delayline (TDL) channels, without additional complexity. To summarize, this paper investigates the weakness of the coding and modulation schemes in current systems and provides potential alternatives for the enhanced future broadcast in 3GPP standard.

引用

页码：481 / 489

页数：9

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