{"title":"iSAFE: Enabling Evenness of Data Freshness in Multipriority Networked Intermittent Systems","authors":"Wen Sheng Lim;Yu-Cheng Chen;Yu-Hsuan Chu;Chia-Heng Tu;Yuan-Hao Chang","doi":"10.1109/TCAD.2024.3522211","DOIUrl":null,"url":null,"abstract":"Environmental monitoring applications use energy harvesting to cover wide-range deployment, where devices are powered by ambient energy and operate intermittently when energy is sufficient. In such an intermittent networked system (NIS), a sink node is used to forward the environmental data collected by sensors to a central controller to reflect the physical environment status. Nevertheless, existing data forwarding algorithms for NISs cannot fulfill modern application requirements, where multiple types of data with different timeliness requirements (i.e., multipriorities) are desired to report real-time environmental data for monitoring critical situations. Without considering the multipriorities, we show in this article that it introduces a new problem: unevenness of data freshness. We then propose the sink node-based evenness-aware update forwarding (iSAFE) algorithm to provide evenness among different priorities of data sources in NISs. iSAFE consists of three important components: 1) a theoretical analysis to derive the optimal data forwarding interval between two adjacent status updates from the sensor; 2) an evenness-aware forwarding algorithm to adaptively adjust the forwarding interval based on the runtime status; and 3) a fresh-aware energy preservation algorithm to maintain the freshness of collected data. The experimental results show that iSAFE can achieve up to 682% evenness (94.47% close to the ideal) and 53.3% data freshness compared to the state of the art while being energy-efficient and scalable, suitable for modern applications.","PeriodicalId":13251,"journal":{"name":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems","volume":"44 6","pages":"2093-2104"},"PeriodicalIF":2.7000,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10812996/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE","Score":null,"Total":0}
引用次数: 0
Abstract
Environmental monitoring applications use energy harvesting to cover wide-range deployment, where devices are powered by ambient energy and operate intermittently when energy is sufficient. In such an intermittent networked system (NIS), a sink node is used to forward the environmental data collected by sensors to a central controller to reflect the physical environment status. Nevertheless, existing data forwarding algorithms for NISs cannot fulfill modern application requirements, where multiple types of data with different timeliness requirements (i.e., multipriorities) are desired to report real-time environmental data for monitoring critical situations. Without considering the multipriorities, we show in this article that it introduces a new problem: unevenness of data freshness. We then propose the sink node-based evenness-aware update forwarding (iSAFE) algorithm to provide evenness among different priorities of data sources in NISs. iSAFE consists of three important components: 1) a theoretical analysis to derive the optimal data forwarding interval between two adjacent status updates from the sensor; 2) an evenness-aware forwarding algorithm to adaptively adjust the forwarding interval based on the runtime status; and 3) a fresh-aware energy preservation algorithm to maintain the freshness of collected data. The experimental results show that iSAFE can achieve up to 682% evenness (94.47% close to the ideal) and 53.3% data freshness compared to the state of the art while being energy-efficient and scalable, suitable for modern applications.
期刊介绍:
The purpose of this Transactions is to publish papers of interest to individuals in the area of computer-aided design of integrated circuits and systems composed of analog, digital, mixed-signal, optical, or microwave components. The aids include methods, models, algorithms, and man-machine interfaces for system-level, physical and logical design including: planning, synthesis, partitioning, modeling, simulation, layout, verification, testing, hardware-software co-design and documentation of integrated circuit and system designs of all complexities. Design tools and techniques for evaluating and designing integrated circuits and systems for metrics such as performance, power, reliability, testability, and security are a focus.