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Enabling Time-Synchronized Hybrid Networks With Low-Cost IoT Modules

  • Precisely synchronized communication is a major precondition for many industrial applications. At the same time, hardware cost and power consumption need to be kept as low as possible in the Internet of Things (IoT) paradigm. While many wired solutions on the market achieve these requirements, wireless alternatives are an interesting field for research and development. This article presents aPrecisely synchronized communication is a major precondition for many industrial applications. At the same time, hardware cost and power consumption need to be kept as low as possible in the Internet of Things (IoT) paradigm. While many wired solutions on the market achieve these requirements, wireless alternatives are an interesting field for research and development. This article presents a novel IEEE802.11n/ac wireless solution, exhibiting several advantages over state-of-the-art competitors. It is based on a market-available wireless System on a Chip with modified low-level communication firmware combined with a low-cost field-programmable gate array. By achieving submicrosecond synchronization accuracy, our solution outperforms the precision of low-cost products by almost four orders of magnitude. Based on inexpensive hardware, the presented wireless module is up to 20 times cheaper than software-defined-radio solutions with comparable timing accuracy. Moreover, it consumes three to five times less power. To back up our claims, we report data that we collected with a high sampling rate (2000 samples per second) during an extended measurement campaign of more than 120 h, which makes our experimental results far more representative than others reported in the literature. Additional support is provided by the size of the testbed we used during the experiments, composed of a hybrid network with nine nodes divided into two independent wireless segments connected by a wired backbone. In conclusion, we believe that our novel Industrial IoT module architecture will have a significant impact on the future technological development of high-precision time-synchronized communication for the cost-sensitive industrial IoT market.show moreshow less

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Metadaten
Document Type:Article (reviewed)
Zitierlink: https://opus.hs-offenburg.de/8349
Bibliografische Angaben
Title (English):Enabling Time-Synchronized Hybrid Networks With Low-Cost IoT Modules
Author:Alexey Mikhailovich Romanov, Francesco Gringoli, Kamil AlkhouriStaff MemberGND, Pavel E. Tripolski, Axel SikoraStaff MemberORCiDGND
Year of Publication:2023
Date of first Publication:2023/06/01
Publisher:IEEE
First Page:9966
Last Page:9978
Parent Title (English):IEEE Internet of Things Journal
Volume:10
Issue:11
ISSN:2327-4662 (Elektronisch)
ISSN:2372-2541 (CD)
DOI:https://doi.org/10.1109/JIOT.2023.3235052
Language:English
Inhaltliche Informationen
Institutes:Forschung / ivESK - Institut für verlässliche Embedded Systems und Kommunikationselektronik
Fakultät Elektrotechnik, Medizintechnik und Informatik (EMI) (ab 04/2019)
Collections of the Offenburg University:Bibliografie
Tag:Field-programmable gate array (FPGA); Jitter; hybrid networks; low-cost sensors and devices; real-time systems; sensor and actuator networks
Formale Angaben
Relevance for "Jahresbericht über Forschungsleistungen":Wiss. Zeitschriftenartikel reviewed: Listung in Master Journal List
Open Access: Closed 
Licence (German):License LogoUrheberrechtlich geschützt