@article{MTMT:33091417, title = {Energy Aware IoT Routing Algorithms in Smart City Environment}, url = {https://m2.mtmt.hu/api/publication/33091417}, author = {Ekler, Péter and Levendovszky, János and Pásztor, Dániel}, doi = {10.1109/ACCESS.2022.3199757}, journal-iso = {IEEE ACCESS}, journal = {IEEE ACCESS}, volume = {10}, unique-id = {33091417}, issn = {2169-3536}, abstract = {Energy efficiency is one of the key aspects of IoT and Wireless Sensor Networks (WSNs) since the nodes of the network are running on battery power and the lifespan of the system is an important mission-critical parameter. In WSNs, where the energy consumption mainly depends on the radio interface and the transmission protocols, reliable packet forwarding from the source node to Base Station (BS) is crucial. In this paper, we focus on developing new routing algorithms which extend the lifespan of WSNs by achieving optimal energy balancing subject to the criterion that the packets must reach the BS with a predefined probability. We will propose novel two-hop and multi-hop routing algorithms to achieve this objective. The performance of the novel algorithms is compared with the LEACH routing protocol. Extensive simulations prove that the new routing methods are indeed energy efficient, and they are able to meet the predefined reliability criteria as well. The results given in this paper can contribute to reliable communication in IoT or WSN networks and result in lower energy consumption.}, year = {2022}, eissn = {2169-3536}, pages = {87733-87744}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @inproceedings{MTMT:32809300, title = {Predictive Maintenance in Distributed Environments}, url = {https://m2.mtmt.hu/api/publication/32809300}, author = {Sik, Dávid and Ekler, Péter and Levendovszky, János}, booktitle = {Proceedings of The First Conference on ZalaZONE Related R&I Activities of Budapest University of Technology and Economics 2022}, doi = {10.3311/BMEZalaZONE2022-018}, unique-id = {32809300}, year = {2022}, pages = {85-88}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @article{MTMT:32704747, title = {A predictive maintenance system for wireless sensor networks: A machine learning approach}, url = {https://m2.mtmt.hu/api/publication/32704747}, author = {Almazaideh, Mohammed and Levendovszky, János}, doi = {10.11591/ijeecs.v25.i2.pp1047-1058}, journal-iso = {IJEECS}, journal = {INDONESIAN JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE}, volume = {25}, unique-id = {32704747}, issn = {2502-4752}, year = {2022}, eissn = {2502-4760}, pages = {1047-1058}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @article{MTMT:32801323, title = {Energy-Efficient Routing in Wireless Sensor Networks}, url = {https://m2.mtmt.hu/api/publication/32801323}, author = {Pásztor, Dániel and Ekler, Péter and Levendovszky, János}, doi = {10.14232/ACTACYB.288351}, journal-iso = {ACTA CYBERN-SZEGED}, journal = {ACTA CYBERNETICA}, volume = {25}, unique-id = {32801323}, issn = {0324-721X}, year = {2021}, eissn = {2676-993X}, pages = {421-434}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @article{MTMT:32595465, title = {Evaluating the Performance of Novel JWT Revocation Strategy}, url = {https://m2.mtmt.hu/api/publication/32595465}, author = {Jánoky, László Viktor and Ekler, Péter and Levendovszky, János}, doi = {10.14232/actacyb.289455}, journal-iso = {ACTA CYBERN-SZEGED}, journal = {ACTA CYBERNETICA}, volume = {25}, unique-id = {32595465}, issn = {0324-721X}, year = {2021}, eissn = {2676-993X}, pages = {307-318}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @article{MTMT:32300657, title = {Data Chunks Placement Optimization for Hybrid Storage Systems}, url = {https://m2.mtmt.hu/api/publication/32300657}, author = {Yolchuyev, Agil and Levendovszky, János}, doi = {10.3390/fi13070181}, journal-iso = {FUTURE INTERNET}, journal = {FUTURE INTERNET}, volume = {13}, unique-id = {32300657}, abstract = {“Hybrid Cloud Storage” (HCS) is a widely adopted framework that combines the functionality of public and private cloud storage models to provide storage services. This kind of storage is especially ideal for organizations that seek to reduce the cost of their storage infrastructure with the use of “Public Cloud Storage” as a backend to on-premises primary storage. Despite the higher performance, the hybrid cloud has latency issues, related to the distance and bandwidth of the public storage, which may cause a significant drop in the performance of the storage systems during data transfer. This issue can become a major problem when one or more private storage nodes fail. In this paper, we propose a new framework for optimizing the data uploading process that is currently used with hybrid cloud storage systems. The optimization is concerned with spreading the data over the multiple storages in the HCS system according to some predefined objective functions. Furthermore, we also used Network Coding technics for minimizing data transfer latency between the receiver (private storages) and transmitter nodes.}, year = {2021}, eissn = {1999-5903}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @inproceedings{MTMT:32095995, title = {Remaining useful life based Predictive Maintenance}, url = {https://m2.mtmt.hu/api/publication/32095995}, author = {Sik, Dávid and Levendovszky, János}, booktitle = {Proceedings of the Automation and Applied Computer Science Workshop 2021}, unique-id = {32095995}, year = {2021}, pages = {224-231}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @article{MTMT:32041567, title = {A multi-hop routing algorithm for WSNs based on compressive sensing and multiple objective genetic algorithm}, url = {https://m2.mtmt.hu/api/publication/32041567}, author = {Almazaideh, Mohammed and Levendovszky, János}, doi = {10.23919/JCN.2021.000003}, journal-iso = {J COMMUN NETW-S KOR}, journal = {JOURNAL OF COMMUNICATIONS AND NETWORKS}, volume = {23}, unique-id = {32041567}, issn = {1229-2370}, year = {2021}, eissn = {1976-5541}, pages = {138-147}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @inproceedings{MTMT:32595461, title = {Performance Evaluation of a Novel JWT Revocation Algorithm}, url = {https://m2.mtmt.hu/api/publication/32595461}, author = {Jánoky, László Viktor and Levendovszky, János and Ekler, Péter}, booktitle = {Proceedings of the Automation and Applied Computer Science Workshop 2020}, unique-id = {32595461}, year = {2020}, pages = {199-205}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} } @article{MTMT:31963091, title = {A New Energy-Efficient and Reliable Protocol for Stochastic WSNs Based on Back-Pressure and Entropy of Residual Energy}, url = {https://m2.mtmt.hu/api/publication/31963091}, author = {Almazaideh, Mohammed and Levendovszky, János}, doi = {10.4236/jcc.2020.811001}, journal-iso = {Journal of Computer and Communications}, journal = {Journal of Computer and Communications}, volume = {8}, unique-id = {31963091}, issn = {2327-5219}, year = {2020}, pages = {1-13}, orcid-numbers = {Levendovszky, János/0000-0003-1406-442X} }