天地一体化信息网络2023，Vol.4Issue(4)：27-37,11.DOI:10.11959/j.issn.2096-8930.2023040
基于负载量预测的卫星物联网随机接入研究
Research on Random Access of Satellite Internet of Things Based on Load Prediction
摘要
Abstract
In the process of the vigorous development of satellite internet of things,random access protocol is regarded as the most suitable communication protocol due to its characteristics of low signaling overhead,high transmission efficiency,high flexibility and easy implementation.However,due to drastic load changes,conventional random access mode only has advantages in the specific load range.Dynamic allocation of random access resources requires the accurate number of time slot access applications.In view of the above problems,a random access adaptive scheme was proposed,which could adaptively selected the appropriate random access mode according to the future load size,so as to improved the system throughput.The load size could be obtained through the proposed load estimation and prediction scheme.When narrowband interference exists in the transmission environment,the spread-spectrum commu-nication means was introduced to made the adaptive scheme of random access run successfully.Moreover,the proposed adaptive scheme also improved the system throughput.关键词
卫星物联网/随机接入/负载量预测/负载量估计/扩频通信Key words
satellite internet of things/random access/load prediction/load estimation/spread spectrum communication分类
信息技术与安全科学引用本文复制引用
茆习文,王海涛,张更新..基于负载量预测的卫星物联网随机接入研究[J].天地一体化信息网络,2023,4(4):27-37,11.基金项目
国家自然科学基金面上项目(No.62171234) （No.62171234）
国家自然科学基金区域创新发展联合基金重点项目(No.U21A20450)The National Natural Science Foundation of China(No.62171234),Key Project of the Regional Innovation and Development Joint Fund of The National Natural Science Foundation of China(No.U21A20450) （No.U21A20450）
