2021 IEEE 7th World Forum on Internet of Things (WF-IoT)最新文献

{"title":"A Novel Routing Method with Load-Balancing in Wi-SUN FAN Network","authors":"Rei Hirakawa, Ryota Okumura, K. Mizutani, H. Harada","doi":"10.1109/WF-IoT51360.2021.9595050","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9595050","url":null,"abstract":"This paper proposes a novel routing method considering load balancing to improve transmission characteristics of a large-scale Wi-SUN field area network (Wi-SUN FAN) based on IEEE 802.15.4. Wi-SUN FAN is a wireless communication standard that enables the interconnection of many Internet-of-Things (IoT) devices outdoors. Wi-SUN FAN prevents packet collisions by frequency hopping in the media access control (MAC) layer. Besides, Wi-SUN FAN constructs multi-hop networks autonomously using Internet protocol version 6 routing protocol for low-power and lossy networks (RPL) at the network layer. In RPL, each node determines its parent node based on the quality of communication. Therefore, many nodes are likely to choose the same parent node with good radio reachability, resulting in many packets being sent to the parent node. The heavy load for the specific node makes frequency hopping not work effectively, and transmission characteristics deteriorate. The proposed routing method with a load-balancing algorithm eliminates the load concentration and improves the average transmission success rate by approximately 9.4% on the specific nodes.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131107706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Characterization of ProSe Direct Discovery for Emergency Scenarios","authors":"Ali Masood, M. Alam, Y. Moullec","doi":"10.1109/WF-IoT51360.2021.9595305","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9595305","url":null,"abstract":"Device-to-device communication, as provided by the third generation partnership project standardization, can play a vital role in designing a reliable pervasive public safety network, which allows the user equipments to communicate directly with each other in emergency situations. In this paper, we present experimental results and evaluate the performance of proximity services-based direct discovery in terms of reliability and maximum range for outdoor and indoor emergency scenarios.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130491971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Supervised Approach for Corrective Maintenance Using Spectral Features from Industrial Sounds","authors":"Luana Gantert, Matteo Sammarco, Marcin Detyniecki, M. Campista","doi":"10.1109/WF-IoT51360.2021.9594966","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9594966","url":null,"abstract":"The fourth industrial revolution makes extensive use of IoT, AI, and smart sensors for improved automation, safety, production, and prognostics, and health management. In this paper, we address corrective maintenance based on fault recognition relying on sounds produced by machine components. Different spectral features are extracted from industrial sounds and are used as input of supervised learning algorithms for classification between normal and abnormal operations. Experiments using the MIMII (Malfunctioning Industrial Machine Investigation and Inspection) dataset, which contains sound samples produced by pump, slide rail, valve, and fan components, reveals promising results based on the f1-score. We also evaluate the impact of the different spectral features considered, confirming their incremental impact. Finally, we compare our proposal with a baseline alternative from the literature, which employs unsupervised learning and Mel-spectrogram conversion. Our approach improves the AUC (Area Under the Curve) metric by up to 39.5% compared with the baseline approach.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116014347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine Learning-based Services Provisioning for Intelligent Internet of Vehicles","authors":"A. Afify, B. Mokhtar","doi":"10.1109/WF-IoT51360.2021.9596012","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9596012","url":null,"abstract":"This paper is aimed to deliver a Machine Learning (ML) based intelligent system that is capable of intelligently issuing services in a pre-defined environment setup that simulates a simple real-life scenario of Internet of Vehicle (IoV). First, a detailed discussion about Vehicular Ad Hoc Networks (VANETs) and IoVs is introduced stating the significant differences between both of them and why IoVs outplay VANETs. A thorough literature review about the fundamental aspects of IoV is clearly addressed. Following the literature review, an environment setup is constructed backed up with an empirically generated dataset. This then paves the way to examine two different Machine Learning classifiers, namely Binary Logistic Regression and Shallow Neural Network for our ML based intelligent system. Both classifiers are discussed in terms of mechanism and mathematical formulation. Finally, an analysis of both classifiers’ performance along with the necessary statistical measures are presented and discussed in addition to a conclusive comparison between both classifiers.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116316381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How Green Networking May Harm Your IoT Network: Impact of Transmit Power Reduction at Night on NB-IoT Performance","authors":"Pascal Jörke, C. Wietfeld","doi":"10.1109/WF-IoT51360.2021.9596046","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9596046","url":null,"abstract":"While green networking saves energy and money on base station sites, the impact on IoT devices must also be studied. Signal strength measurements show that in NB-IoT networks base stations reduce the transmit power at night or even shutoff, forcing NB-IoT devices to switch in remaining cells with worse signal strength. Therefore, this paper analyzes the impact of downlink transmission power reduction at night on the latency, energy consumption, and battery lifetime of NB-IoT devices. For this purpose, extensive latency and energy measurements of acknowledged NB-IoT uplink data transmissions have been performed for various signal strength values. The results show that devices experience increased latency by up to a factor of 3.5 when transmitting at night, depending on signal strength. In terms of energy consumption, a single data transmission uses up to 3.2 times more energy. For a 5Wh battery, a weak downlink signal at night reduces the device battery lifetime by up to 4 years on a single battery. Devices at the cell edge may even lose the cell connectivity and enter a high power cell search state, reducing the average battery lifetime of these devices to as low as 1 year. Therefore, transmit power reduction at night and cell shut-offs should be minimized or avoided for NB-IoT networks.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123500631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cooperative Vehicle Platoon Intra-communications over Space-Time Correlated Rice fading Channels with co-channel Interference","authors":"R. Sámano-Robles","doi":"10.1109/WF-IoT51360.2021.9595081","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9595081","url":null,"abstract":"This paper investigates the performance of vehicle platoon intra-communications in the presence of node relaying cooperation. In the proposed scenario, all nodes are allowed to relay the signals of other entities towards the next/final destination. This improves channel conditions by mimicking large scale (virtual) antennas, thereby achieving the concept of cooperative diversity. The scenario considers a platoon of J vehicles assisted by a set of relay nodes. These potential relays include the same vehicles of the platoon, as well as base stations (BSs) and/or road-side units (RSUs). The objective is to evaluate the delay experienced by a packet transmitted by the leader towards all the vehicles of the formation. Each vehicle and each relayingable node is considered to relay the correctly received message to the remaining entities, but most importantly to all the vehicles of the platoon. We consider that if a given transmission attempt is not successfully received by all entities, then the transmitter and relays with a correct copy of the transmission engage in a persistent retransmission scheme that stops only when the packet has been correctly received by all the vehicles. Instantaneous and ideal feedback is used in all calculations. The criterion used to consider a packet correctly received by the destination is that the instantaneous signal-to-interference-plus-noise ratio (SINR) surpasses a reception threshold. It is assumed that the destination nodes store a copy of all the received transmissions over consecutive time slots and antenna elements. These signals are processed using ideal maximum-ratio combining (MRC) to obtain a more reliable copy of the information (i.e. using time and/or retransmission diversity). Multiple antennas are used by all the vehicles and nodes of the network under analysis. Novel spatial and temporal correlation tools are introduced in the channel model with Rice fading statistics and co-channel interference. Results suggest that RSUs can considerably reduce delay of platoons with large numbers of vehicles or large distances between elements. The degree of improvement also depends on channel correlation and the number of co-located antennas.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123748456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vertical and Topical Program","authors":"","doi":"10.1109/wf-iot51360.2021.9595268","DOIUrl":"https://doi.org/10.1109/wf-iot51360.2021.9595268","url":null,"abstract":"","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124937458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Workshops Tracks","authors":"","doi":"10.1109/wf-iot51360.2021.9595378","DOIUrl":"https://doi.org/10.1109/wf-iot51360.2021.9595378","url":null,"abstract":"","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"3096 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127466277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DTLS Connection Identifiers for Secure Session Resumption in Constrained IoT Devices","authors":"Alexandros G. Fragkiadakis","doi":"10.1109/WF-IoT51360.2021.9595193","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9595193","url":null,"abstract":"This paper presents the design and implementation of DTLS v1.2 connection identifiers for secure session resumption in case of 5-tuple changes, in order to avoid a costly re-handshake process. Our implementation is based on the tinyDTLS and Contiki OS, and we show its feasibility on constrained IoT devices, while providing information on the incurred overhead in terms of the execution time, memory utilisation, and network traffic.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"606 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114675792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards a Novel Edge to Cloud IoMT Application for Wildlife Monitoring using Edge Computing","authors":"J. C. C. Tavares, L. B. Ruiz","doi":"10.1109/WF-IoT51360.2021.9596017","DOIUrl":"https://doi.org/10.1109/WF-IoT51360.2021.9596017","url":null,"abstract":"This work proposes an application of the Internet of Multimedia Things (IoMT) for monitoring wildlife using edge computing. The application architecture was designed considering all stages from the collection of data in nature to delivery to the user. For this, the application architecture is organized into three services: edge, distribution and delivery. All application services were implemented without the use of commercial solutions, serving as a guide for developers who want to implement their own monitoring. As a study case, the application implemented in this work is that of monitoring birds calling, and was designed based on the Brazilian protocol for monitoring birds. Monitoring wildlife is a necessary task and often requires tasks in places that are difficult to access.","PeriodicalId":184138,"journal":{"name":"2021 IEEE 7th World Forum on Internet of Things (WF-IoT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114184882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}