Cooperative Beam Association and Power Allocation in UD-LEO Satellite Communication Networks: A Spectrum Sharing Manner

• DOI: 10.3390/electronics11030299
• Publication Date: 2022-01-19T13:20:57Z
• Authors: Jianfei Tong; Cheng Wang; Xiaoyan Zhao; Gaofeng Cui; Weidong Wang
• Keywords: Communications satellite; Frequency allocation; Transmitter power output

In recent years, the ultra-dense low Earth orbit (LEO) satellite communication (UD-LSC) networks such as SpaceX and OneWeb are under rapid development to provide worldwide broadband services. However, deployment of thousands LEO satellites into space leads shortage orbital frequency resources. Spectrum sharing between geostationary (GEO) systems seems be a promising way alleviate problem restricted spectrum this paper, joint cooperative beam association power allocation scheme for UD-LSC network share same with GEO system is considered. By exploiting transmission multiple satellites, we first propose many-to-many match game-based (MGBA) algorithm obtain stable matching cells, then, successive convex approximation (SCA)-based (SPA) iteratively acquire sub-optimal matrix. Simulation results show that proposed MGBA-SPA outperforms other contrast schemes from perspective satisfaction, it realizes balance traffic request provided capacity each ground cell.