基于终端位置及业务优先级的卫星物联网资源分配方法  

Resource Allocation for Satellite IoT Based on Terminal Position and Service Priority

作　　者：王力权[1] 张开禾[1] WANG Liquan;ZHANG Kaihe(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2021年第6期753-757,共5页Radio Communications Technology

基　　金：河北省科技重大专项(18040403Z)。

摘　　要：在物联网需求高速增长的背景下,不受地形限制的卫星物联网成为重要发展方向之一,但有限卫星资源难以满足日益增长的卫星终端业务需求。针对此,根据卫星物联网业务特点和低轨星座系统特点,提出基于终端位置、业务优先级的资源动态分配方法,并通过仿真分析了接入成功率与信道数量和用户数量的关系。基于研究结果,在满足接入成功率要求的前提下,系统可依据当前覆盖区域内的用户数量动态分配用于物联服务的信道数量,提高系统的资源利用效率。In the context of the rapid growing demand for the Internet of things(IoT),the satellite IoT without restriction of terrain has become one important development direction.However,the limited satellite resources are difficult to meet the growing demand for satellite terminal services.A dynamic resource allocation method based on terminal location and service priority is proposed according to the characteristics of satellite Internet of Things and LEO system.The relationship of access success rate,channel numbers,and user numbers is obtained from analysis and simulation.Based on research results,system can dynamically allocate channel numbers for IOT services according to user number in current coverage area,so as to improve system resource utilization efficiency under the premise of meeting the requirement of access success rate.

关 键 词：卫星物联网 低轨星座系统 业务优先级 资源动态分配 

分 类 号：TN927.23[电子电信—通信与信息系统]