Design and Analysis of Novel Ka Band NOMA Uplink Relay System for Lunar Farside Exploration  

作　　者：Jian Jiao Yizhi He Ye Wang Shaohua Wu 

机构地区：[1]School of Electronic and Information Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China [2]Peng Cheng Laboratory,Shenzhen 518055,China

出　　处：《China Communications》2020年第7期1-14,共14页中国通信（英文版）

基　　金：supported in part by the National Natural Sciences Foundation of China(NSFC)under Grant 61771158,Grant 61871147,Grant 61831008,Grant 91638204,and Grant 61525103;in part by the Shenzhen Basic Research Program under Grant J CYJ20170811154309920,Grant JCYJ20170811160142808,and Grant ZDSYS201707280903305;in part by the Guangdong Science and Technology Planning Project under Grant 2018B030322004;in part by the Natural Science Foundation of Guangdong Province under Grant 2020A1515010505;in part by the project The Verification Platform of Multi-tier Coverage Communication Network for Oceans under Grant LZC0020。

摘　　要：This paper proposes a novel Ka band non-orthogonal multiple access(NOMA)uplink relay system for Lunar farside exploration,where a satellite relay node with the help of NOMA scheme,amplifies and forwards the signal from the Earth Base Station(EBS)to a Lunar rover and a lander.We assume that the signal undergoes shadowed-Rician fading for the source-relay link and Rayleigh fading for the relay-destination link.Then,the analytical expressions for the outage probability(OP)and ergodic capacity are derived for the satellite relay node equipped with single and multiple antennas,respectively.In addition,we obtain the optimal power allocation coefficients by maximizing the sum ergodic capacity of the system,and we calculate the power consumption of the NOMA uplink relay system to achieve the same OP performance of OMA system and provide some useful guides for the design of the Earth-to-Lunar communication system.Simulations are provided to confirm the reliability of our analytical results and show the impact of various parameters on the system performance.

关 键 词：NOMA system EARTH 

分 类 号：TN929.5[电子电信—通信与信息系统] V476.3[电子电信—信息与通信工程]