Ultra reliability and massive connectivity provision in integrated internet of military things(IoMT)based on tactical datalink  

作　　者：Li Bing Yating Gu Lanke Hu Li Bowen Yang Lihua Jue Wang Yue Yin 

机构地区：[1]Northwestern Polytechnical University,Xi'an 710072,China [2]China Academy of Information and Communications Technology,Beijing 100191,China [3]China Intelligent and Connected Vehicles(Beijing)Research Institute Co.,Ltd,Beijing 100176,China [4]The 20th Research Institute of China Electronic Technology Group Corporation,Xi’an 710068,China [5]Xidian University,Xi'an 710071,China

出　　处：《Defence Technology（防务技术）》2024年第3期386-398,共13页Defence Technology

基　　金：supported in part by the National Natural Science Foundation of China(Grant Nos.61601346 and 62377039);the Natural Science Basic Research Plan in Shaanxi Province of China(Grant No.2018JQ6044);the Ministry of Industry and Information Technology of the People's Republic of China(Grant No.2023-276-1-1);the Fundamental Research Funds for the Central Universities,Northwestern Polytechnical University(Grant No.31020180QD089);the Aeronautical Science Foundation of China(Grant Nos.20200043053004 and 20200043053005)。

摘　　要：One of the major challenges arising in internet of military things(IoMT)is accommodating massive connectivity while providing guaranteed quality of service(QoS)in terms of ultra-high reliability.In this regard,this paper presents a class of code-domain nonorthogonal multiple accesses(NOMAs)for uplink ultra reliable networking of massive IoMT based on tactical datalink such as Link-16 and joint tactical information distribution system(JTIDS).In the considered scenario,a satellite equipped with Nr antennas servers K devices including vehicles,drones,ships,sensors,handset radios,etc.Nonorthogonal coded modulation,a special form of multiple input multiple output(MIMO)-NOMA is proposed.The discussion starts with evaluating the output signal to interference-plus-noise(SINR)of receiver filter,leading to the unveiling of a closed-form expression for overloading systems as the number of users is significantly larger than the number of devices admitted such that massive connectivity is rendered.The expression allows for the development of simple yet successful interference suppression based on power allocation and phase shaping techniques that maximizes the sum rate since it is equivalent to fixed-point programming as can be proved.The proposed design is exemplified by nonlinear modulation schemes such as minimum shift keying(MSK)and Gaussian MSK(GMSK),two pivotal modulation formats in IoMT standards such as Link-16 and JITDS.Numerical results show that near capacity performance is offered.Fortunately,the performance is obtained using simple forward error corrections(FECs)of higher coding rate than existing schemes do,while the transmit power is reduced by 6 dB.The proposed design finds wide applications not only in IoMT but also in deep space communications,where ultra reliability and massive connectivity is a keen concern.

关 键 词：Satellite network Deep space communications Internet of military things Non-orthogonal multiple access MIMO LINK-16 JITDS 

分 类 号：E91[军事]