软件导刊2024，Vol.23Issue(12)：92-98,7.DOI:10.11907/rjdk.232156
能量收集物联网中信息年龄优化调度策略
Age of Information Optimal Scheduling Strategy in Energy Harvesting Internet of Things
摘要
Abstract
Age of Information(AoI)is a measure of data freshness,which is an important consideration in the optimization design of energy harvesting IoT.Existing AoI optimization strategies are often designed only from the source node side or the base station side.In this regard,a joint optimization scheme that takes into account both the source node sampling strategy and the base station scheduling strategy is designed for the energy harvesting IoT with multiple source nodes,an energy cap,and an ideal channel.The source node sampling strategy considers the following tradeoffs:the earlier the sampling time,the larger the AoI of the cached samples;if the sampling time is too late,the energy may be wasted or too late to be uploaded to the base station.The base station scheduling is based on a greedy strategy,i.e.,selecting the source node that minimizes the long-term average AoI increase of the system.Simulation analysis shows that the method can obtain better long term average AoI compared to existing proven baseline methods.关键词
信息年龄/能量收集物联网/采样策略/调度策略Key words
age of information/energy harvesting IoT/sampling strategy/scheduling strategy分类
信息技术与安全科学引用本文复制引用
叶恒舟,覃启航..能量收集物联网中信息年龄优化调度策略[J].软件导刊,2024,23(12):92-98,7.基金项目
广西重点研发计划项目(桂科AB23026004) （桂科AB23026004）
广西嵌入式技术与智能系统重点实验室主任基金项目(2019-01-10) （2019-01-10）
