空天地海一体化网络中的高能效频谱共享方法  

Energy-Efficient Spectrum Sharing for Space-Air-Ground-Sea Integrated Networks

作　　者：李俊峰 刘承骁 冯伟[1] 葛宁[1] LI Junfeng;LIU Chengxiao;FENG Wei;GE Ning(Department of Electronic Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《移动通信》2020年第9期1-6,26,共7页Mobile Communications

基　　金：国家自然科学基金优秀青年科学基金项目(61922049);国家自然科学基金面上项目(61771286);国家自然科学基金应急管理项目(61941104)。

摘　　要：空天地海一体化是后5G时代网络的发展趋势,是支撑偏远地区、近海等区域宽带信息覆盖的重要手段,其中各子系统共享频谱会引入同频干扰,降低协同覆盖性能。为此,考虑无人机编队和卫星系统的频谱共享问题,研究高能效资源分配技术,基于随机矩阵理论和分块坐标下降方法,提出功率和频谱资源的联合分配算法。仿真结果表明,所提算法可有效保证频谱共享性能,提升无人机编队通信的能量效率。Space-air-ground-sea integrated networks(SAGSIN)are the development trend in the beyond fifth generation(5G)era,which are important approaches to cover the remote and maritime areas.However,the spectrum sharing among different subsystems in the SAGSIN causes the co-frequency interference and thus deteriorates the coordinated coverage performance.In this paper,we consider the spectrum sharing issue in the unmanned aerial vehicle(UAV)swarm-satellite integrated networks,and address the joint resource allocation problem for high energy efficiency.By leveraging the random matrix theory and block coordinate descent methods,we propose a joint power and spectrum allocation algorithm.Simulation results show that the proposed algorithm can effectively guarantee the performance of spectrum sharing and improve the energy efficiency of UAV swarm communications.

关 键 词：空天地海一体化网络 频谱共享 无人机编队 资源分配 能量效率 

分 类 号：TN929.5[电子电信—通信与信息系统]