{"title":"Loss Process at an AQM Buffer","authors":"A. Chydzinski","doi":"10.3390/jsan12040055","DOIUrl":"https://doi.org/10.3390/jsan12040055","url":null,"abstract":"We perform a comprehensive analysis of packet losses occurring at an AQM buffer in which the packet deletion probability is relative to the size of the queue. Several characteristics of the loss process are derived: the number of deletions in an interval of length t, the temporary intensity of deletions at arbitrary time, the steady-state loss ratio, and the number of losses if there is no service. All of them are obtained for a general deletion probability function and an advanced model of the arrival process, which incorporates, among other things, the autocorrelation of traffic. Analytical results are accompanied by examples in which numerical values are obtained for several configurations of the system. Using these examples, the dependence of the loss process on the initial system state, deletion probability function, and traffic autocorrelation are discussed.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48892216","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}
Andrea Volpi, R. Montanari, L. Tebaldi, Marco Mambrioni
{"title":"Low-Cost Real-Time Locating System Solution Development and Implementation in Manufacturing Industry","authors":"Andrea Volpi, R. Montanari, L. Tebaldi, Marco Mambrioni","doi":"10.3390/jsan12040054","DOIUrl":"https://doi.org/10.3390/jsan12040054","url":null,"abstract":"The present work originates from a previous study in which a low-cost Real-Time Locating System (RTLS) based on Ultra-Wideband signals was developed and tested both in a laboratory and in a real industrial environment for assessing its performance and determining the best configuration, according to some selected KPIs. Starting from the future research directions depicted, the evolution herein presented is twofold. First, tests performed in the laboratory are refined and deepened in terms of (i) different anchors’ arrangements and orientation; (ii) the increased number of tested tags; and (iii) the tags’ battery capacity test. Second, the development and deployment of the industrial solution as well is improved by means of a case for hosting tags to be positioned on the asset to be tracked, realized through 3D printing, in line with the industrial context requirements. Finally, an economic analysis is performed so as to demonstrate the convenience of the investment and the feasibility of the solution. Results are positive and promising in terms of both economic sustainability and implementation of the system in a real industrial environment and may constitute guidelines for practitioners and managers.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46716082","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":"Sensorless Estimation of Human Joint Torque for Robust Tracking Control of Lower-Limb Exoskeleton Assistive Gait Rehabilitation","authors":"A. Abdullahi, R. Chaichaowarat","doi":"10.3390/jsan12040053","DOIUrl":"https://doi.org/10.3390/jsan12040053","url":null,"abstract":"Patients suffering from motor disorders or weakness resulting from either serious spinal cord injury or stroke often require rehabilitation therapy to regain their mobility. In the lower limbs, exoskeletons have two motors aligned with the patients’ hip and knee to assist in rehabilitation exercises by supporting the patient’s body structure to increase the torques at the hip and knee joints. Assistive rehabilitation is, however, challenging, as the human torque is unknown and varies from patient to patient. This poses difficulties in determining the level of assistance required for a particular patient. In this paper, therefore, a modified extended state observer (ESO)-based integral sliding mode (ISM) controller (MESOISMC) for lower-limb exoskeleton assistive gait rehabilitation is proposed. The ESO is used to estimate the unknown human torque without application of a torque sensor while the ISMC is used to achieve robust tracking of preset hip and knee joint angles by considering the estimated human torque as a disturbance. The performance of the proposed MESOISMC was assessed using the mean absolute error (MAE). The obtained results show an 85.02% and 87.38% reduction in the MAE for the hip and joint angles, respectively, when the proposed MESOISMC is compared with ISMC with both controllers tuned via LMI optimization. The results also indicate that the proposed MESOISMC method is effective and efficient for user comfort and safety during gait rehabilitation training.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45319490","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":"DDoS Attack and Detection Methods in Internet-Enabled Networks: Concept, Research Perspectives, and Challenges","authors":"K. Adedeji, A. Abu-Mahfouz, A. Kurien","doi":"10.3390/jsan12040051","DOIUrl":"https://doi.org/10.3390/jsan12040051","url":null,"abstract":"In recent times, distributed denial of service (DDoS) has been one of the most prevalent security threats in internet-enabled networks, with many internet of things (IoT) devices having been exploited to carry out attacks. Due to their inherent security flaws, the attacks seek to deplete the resources of the target network by flooding it with numerous spoofed requests from a distributed system. Research studies have demonstrated that a DDoS attack has a considerable impact on the target network resources and can result in an extended operational outage if not detected. The detection of DDoS attacks has been approached using a variety of methods. In this paper, a comprehensive survey of the methods used for DDoS attack detection on selected internet-enabled networks is presented. This survey aimed to provide a concise introductory reference for early researchers in the development and application of attack detection methodologies in IoT-based applications. Unlike other studies, a wide variety of methods, ranging from the traditional methods to machine and deep learning methods, were covered. These methods were classified based on their nature of operation, investigated as to their strengths and weaknesses, and then examined via several research studies which made use of each approach. In addition, attack scenarios and detection studies in emerging networks such as the internet of drones, routing protocol based IoT, and named data networking were also covered. Furthermore, technical challenges in each research study were identified. Finally, some remarks for enhancing the research studies were provided, and potential directions for future research were highlighted.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49271809","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":"Recent Advances in Time-Sensitive Network Configuration Management: A Literature Review","authors":"Boxin Shi, Xiaodong Tu, Bin Wu, Yifei Peng","doi":"10.3390/jsan12040052","DOIUrl":"https://doi.org/10.3390/jsan12040052","url":null,"abstract":"At present, many network applications are seeking to implement Time-Sensitive Network (TSN) technology, which not only furnishes communication transmission services that are deterministic, low-latency, highly dependable, and have ample bandwidth, but also enables unified configuration management, permitting different network types to function under a single management system. These characteristics enable it to be widely used in many fields such as industrial sensor and actuator networks, in-vehicle networks, data center networks, and edge computing. Nonetheless, TSN’s configuration management faces numerous difficulties and challenges related to network deployment, automated operation, and maintenance, as well as real-time and safety assurance, rendering it exceedingly intricate. In recent years, some studies have been conducted on TSN configuration management, encompassing various aspects such as system design, key technologies for configuration management, protocol enhancement, and application development. Nevertheless, there is a dearth of systematic summaries of these studies. Hence, this article aims to provide a comprehensive overview of TSN configuration management. Drawing upon more than 70 relevant publications and the pertinent standards established by the IEEE 802.1 TSN working group, we first introduce the system architecture of TSN configuration management from a macro perspective and then explore specific technical details. Additionally, we demonstrate its application scenarios through practical cases and finally highlight the challenges and future research directions. We aspire to provide a comprehensive reference for peers and new researchers interested in TSN configuration management.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45871310","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}
Fernando Ojeda, Diego Mendez, A. Fajardo, F. Ellinger
{"title":"On Wireless Sensor Network Models: A Cross-Layer Systematic Review","authors":"Fernando Ojeda, Diego Mendez, A. Fajardo, F. Ellinger","doi":"10.3390/jsan12040050","DOIUrl":"https://doi.org/10.3390/jsan12040050","url":null,"abstract":"Wireless sensor networks (WSNs) have been adopted in many fields of application, such as industrial, civil, smart cities, health, and the surveillance domain, to name a few. Fateway and sensor nodes conform to WSN, and each node integrates processor, communication, sensor, and power supply modules, sending and receiving information of a covered area across a propagation medium. Given the increasing complexity of a WSN system, and in an effort to understand, comprehend and analyze an entire WSN, different metrics are used to characterize the performance of the network. To reduce the complexity of the WSN architecture, different approaches and techniques are implemented to capture (model) the properties and behavior of particular aspects of the system. Based on these WSN models, many research works propose solutions to the problem of abstracting and exporting network functionalities and capabilities to the final user. Modeling an entire WSN is a difficult task for researchers since they must consider all of the constraints that affect network metrics, devices and system administration, holistically, and the models developed in different research works are currently focused only on a specific network layer (physical, link, or transport layer), making the estimation of the WSN behavior a very difficult task. In this context, we present a systematic and comprehensive review focused on identifying the existing WSN models, classified into three main areas (node, network, and system-level) and their corresponding challenges. This review summarizes and analyzes the available literature, which allows for the general understanding of WSN modeling in a holistic view, using a proposed taxonomy and consolidating the research trends and open challenges in the area.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46079388","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":"The Power of Data: How Traffic Demand and Data Analytics Are Driving Network Evolution toward 6G Systems","authors":"D. Sabella, Davide Micheli, G. Nardini","doi":"10.3390/jsan12040049","DOIUrl":"https://doi.org/10.3390/jsan12040049","url":null,"abstract":"The evolution of communication systems always follows data traffic evolution and further influences innovations that are unlocking new markets and services. While 5G deployment is still ongoing in various countries, data-driven considerations (extracted from forecasts at the macroscopic level, detailed analysis of live network traffic patterns, and specific measures from terminals) can conveniently feed insights suitable for many purposes (B2B e.g., operator planning and network management; plus also B2C e.g., smarter applications and AI-aided services) in the view of future 6G systems. Moreover, technology trends from standards and research projects (such as Hexa-X) are moving with industry efforts on this evolution. This paper shows the importance of data-driven insights, by first exploring network evolution across the years from a data point of view, and then by using global traffic forecasts complemented by data traffic extractions from a live 5G operator network (statistical network counters and measures from terminals) to draw some considerations on the possible evolution toward 6G. It finally presents a concrete case study showing how data collected from the live network can be exploited to help the design of AI operations and feed QoS predictions.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46139114","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}
J. C. Quintero, Edith Paola Estupiñán Cuesta, Gabriel Leonardo Escobar Quiroga
{"title":"Design, Analysis, and Simulation of 60 GHz Millimeter Wave MIMO Microstrip Antennas","authors":"J. C. Quintero, Edith Paola Estupiñán Cuesta, Gabriel Leonardo Escobar Quiroga","doi":"10.3390/jsan11040059","DOIUrl":"https://doi.org/10.3390/jsan11040059","url":null,"abstract":"","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":"11 1","pages":"59"},"PeriodicalIF":3.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70156327","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":"MINDS: Mobile Agent Itinerary Planning Using Named Data Networking in Wireless Sensor Networks","authors":"Saeid Pourroostaei Ardakani","doi":"10.3390/jsan10020028","DOIUrl":"https://doi.org/10.3390/jsan10020028","url":null,"abstract":"Mobile agents have the potential to offer benefits, as they are able to either independently or cooperatively move throughout networks and collect/aggregate sensory data samples. They are programmed to autonomously move and visit sensory data stations through optimal paths, which are established according to the application requirements. However, mobile agent routing protocols still suffer heavy computation/communication overheads, lack of route planning accuracy and long-delay mobile agent migrations. For this, mobile agent route planning protocols aim to find the best-fitted paths for completing missions (e.g., data collection) with minimised delay, maximised performance and minimised transmitted traffic. This article proposes a mobile agent route planning protocol for sensory data collection called MINDS. The key goal of this MINDS is to reduce network traffic, maximise data robustness and minimise delay at the same time. This protocol utilises the Hamming distance technique to partition a sensor network into a number of data-centric clusters. In turn, a named data networking approach is used to form the cluster-heads as a data-centric, tree-based communication infrastructure. The mobile agents utilise a modified version of the Depth-First Search algorithm to move through the tree infrastructure according to a hop-count-aware fashion. As the simulation results show, MINDS reduces path length, reduces network traffic and increases data robustness as compared with two conventional benchmarks (ZMA and TBID) in dense and large wireless sensor networks.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":"89 Pt A 1","pages":"28"},"PeriodicalIF":3.5,"publicationDate":"2021-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77270399","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}
M. Albano, Carl Anthony, A. Arefi, A. Arriola, G. Barton, An Beongku, Kim Boström, Pedro Brandao, J. Calbimonte, J. Decotignie, J. Delsing, H. Eguiraun, Lloyd E. Emokpae, F. Farahmand, Piedad Garrido, Mouzhi Ge, A. Giani, Luis Sanchez Gonzalez, A. Gotta, Shi-Jun He, Noelia Hernandez, Chien-Chang Hsu, P. Jayaraman, Keonwook Kim, P. Kokkinos, Timilehin Labeodan, Duc Le, Tian-Fu Lee, Yingsong Li, Chin-Feng Lin, Jaime Lloret-Mauri, Andrea Marin, M. Martalò, R. Meseguer, P. Minet, N. Mitton, Antonio Moreno, J. P. Muñoz-Gea, C. Pham, A. Piras, A. Puliafito, Yuansong Qiao, Dariusz Rzońca, N. Savage, Marialisa Scatá, M. Sha, Farhad Shahnia, I. Silva, D. Singh, V. Soares, S. Szott, Rui Teng, J. Tervonen, K. Tsang, L. Vangelista, Praneeth Vepakomma, G. Verticale, J. Villadangos, Jiafu Wan, K. Wang, Xin Wang, Yuan-Ting Wu, Boachang Yang, M. Zappatore, Xinming Zhang, Yanjun Zhao
{"title":"Acknowledgement to Reviewers of JSAN in 2016","authors":"M. Albano, Carl Anthony, A. Arefi, A. Arriola, G. Barton, An Beongku, Kim Boström, Pedro Brandao, J. Calbimonte, J. Decotignie, J. Delsing, H. Eguiraun, Lloyd E. Emokpae, F. Farahmand, Piedad Garrido, Mouzhi Ge, A. Giani, Luis Sanchez Gonzalez, A. Gotta, Shi-Jun He, Noelia Hernandez, Chien-Chang Hsu, P. Jayaraman, Keonwook Kim, P. Kokkinos, Timilehin Labeodan, Duc Le, Tian-Fu Lee, Yingsong Li, Chin-Feng Lin, Jaime Lloret-Mauri, Andrea Marin, M. Martalò, R. Meseguer, P. Minet, N. Mitton, Antonio Moreno, J. P. Muñoz-Gea, C. Pham, A. Piras, A. Puliafito, Yuansong Qiao, Dariusz Rzońca, N. Savage, Marialisa Scatá, M. Sha, Farhad Shahnia, I. Silva, D. Singh, V. Soares, S. Szott, Rui Teng, J. Tervonen, K. Tsang, L. Vangelista, Praneeth Vepakomma, G. Verticale, J. Villadangos, Jiafu Wan, K. Wang, Xin Wang, Yuan-Ting Wu, Boachang Yang, M. Zappatore, Xinming Zhang, Yanjun Zhao","doi":"10.3390/JSAN6010001","DOIUrl":"https://doi.org/10.3390/JSAN6010001","url":null,"abstract":"The editors of JSAN would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2015. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal’s editorial decision-making process. Several steps have been taken in 2015 to thank and acknowledge reviewers. Good, timely reviews are rewarded with a discount off their next MDPI publication. By creating an account on the submission system, reviewers can access details of their past reviews, see the comments of other reviewers, and download a letter of acknowledgement for their records. This is all done, of course, within the constraints of reviewer confidentiality. Feedback from reviewers shows that most see their task as a voluntary and mostly unseen work in service to the scientific community. We are grateful to our reviewers for the contribution they make.","PeriodicalId":37584,"journal":{"name":"Journal of Sensor and Actuator Networks","volume":"6 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3390/JSAN6010001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47540340","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}
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