OTFS Enabled NOMA for MMTC Systems over LEO Satellite

作     者：MA Yiyan MA Guoyu WANG Ning ZHONG Zhangdui AI Bo MA Yiyan;MA Guoyu;WANG Ning;ZHONG Zhangdui;AI Bo

作者机构：Beijing Jiaotong UniversityBeijing 100044China Zhengzhou UniversityZhengzhou 450001China Peng Cheng LaboratoryShenzhen 518000China 

出 版 物：《ZTE Communications》 (中兴通讯技术（英文版）)

年 卷 期：2021年第19卷第4期

页      面：63-70页

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：supported by the Fundamental Research Funds for the Cen⁃tral Universities under Grant Nos.2021YJS202,2020JBZD005 and 2021RC205 the National Key Research and Development Program under Grant Nos.2016YFE0200900 and 2016YFB1200102-04,NSFC under Grant Nos 61725101 and U1834210 the Royal Society Newton Advanced Fellow⁃ship under Grant Nos.61961130391 and NA191006 Beijing Natural Haidian Joint Fund under Grant No.L172020 Major Projects of Beijing Municipal Science and Technology Commission under Grant No.Z181100003218010 State Key Lab of Rail Traffic Control and Safety under Grant Nos.RCS2021ZQ002,RCS2018ZZ007 and RCS2020ZT010 Teaching Reform Project under Grant No.134496522 the Open Research Fund from Shen⁃zhen Research Institute of Big Data under Grant No.2019ORF01006 the PCL Future Greater-Bay Area Network Facilities for Large-scale Exper⁃iments and Applications Project under Grant No.LZ0019 

主　　题：mMTC LEO satellite OTFS NOMA 

摘      要：As a complement of terrestrial networks,non-terrestrial networks(NTN)have ad⁃vantages of wide-area coverage and service *** NTN is potential to play an impor⁃tant role in the 5G new radio(NR)and *** enable the massive machine type communi⁃cations(mMTC),the low earth orbit(LEO)satellite is preferred due to its lower transmission delay and path ***,the LEO satellite may generate notable Doppler shifts to de⁃grade the system ***,orthogonal time frequency space(OTFS)modulation has been *** provides the opportunity to allocate delay Doppler(DD)domain resourc⁃es,which is promising for mitigating the effect of high ***,as the LEO satellite constellation systems such as Starlink are thriving,the space spectrum resources have become increasingly ***,non-orthogonal multiple access(NOMA)is considered as a candidate technology to realize mMTC with limited spectrum *** this paper,the ap⁃plication of OTFS enabled NOMA for mMTC over the LEO satellite is *** LEO satellite based mMTC system and the OTFS-NOMA schemes are ***,the challenges of applying OTFS and NOMA into LEO satellite mMTC systems are ***⁃nally,the potential technologies for the systems are investigated.