Performance Analysis and Code Optimization of IDMA With 5G New Radio LDPC Code

被引：23
|
作者：
Zhang, Yushu [1 ,2 ]
Peng, Kewu [1 ,2 ]
Wang, Xianbin [3 ]
Song, Jian [1 ,2 ]
机构：
[1] Tsinghua Univ, Res Inst Informat Technol, Dept Elect Engn, Beijing Natl Res Ctr Informat Sci & Technol, Beijing 100084, Peoples R China
[2] Shenzhen City Key Lab Digital TV Syst, Shenzhen 518057, Peoples R China
[3] Western Univ, Dept Elect & Comp Engn, London, ON N6A 3K7, Canada
来源：
IEEE COMMUNICATIONS LETTERS | 2018年 / 22卷 / 08期
关键词：
5G new radio access technology; low-density parity-check (LDPC) code; interleave division multiple access (IDMA); non-orthogonal multiple access (NOMA);
D O I：
10.1109/LCOMM.2018.2843347
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, we focus on the performance analysis and code optimization of interleave-division multiple access (IDMA) with the rate-compatible low-density parity-check (LDPC) code adopted in 5G new radio (5G-NR) technical specification. By combining the multi-edge type density evolution (DE) and extrinsic information transfer (EXIT) analysis, a multiedge-type DE-aided EXIT analysis is developed to analyze the asymptotic performance of 5G-NR LDPC-coded IDMA, which is shown to be fairly robust against the variations of user number. Then, the base matrix of 5G-NR LDPC code is optimized for IDMA to achieve higher sum spectral efficiency while maintaining the rate compatibility.
引用
收藏
页码：1552 / 1555
页数：4
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