Internet of Things Group
Info
Our team specializes in Internet of Things (IoT) research, with emphasis on wireless communication and network protocols. We design and analyze the performance of network protocols, address issues related to interoperability, and the semantic description of data and operation of IoT systems. In addition, we investigate auto-configuration, energy consumption minimization, and localization in embedded devices.
We specialize in:
- -LP WAN networks, participating in the works of the LoRa Alliance (including the Relay / D2D Task Force);
- -Indoor localization using UWB and BLE AoA.
We also work on applying artificial intelligence and machine learning to analyze data generated by IoT devices to assist in detecting anomalies such as water leaks or device failures. In cooperation with the industry, we have developed algorithms to increase the accuracy of UWB and BLE indoor localization systems, analyzed measurements from large LoRa networks to identify problem sources, and developed tools for automatic network reconfiguration in response to a failure and to assist in network design.
We have extensive experience working with various technologies and platforms. We specialize in the design and implementation of systems based on technologies such as LoRa, LTE, WiFi, and heterogeneous networks. In our projects, we also work with mesh networks, which are becoming increasingly popular in the IoT world, due to their ability to self-regulate, scalability, and reliability.
We have completed the following projects:
- "Optimization and Load Balancing in Next Generation Wireless Networks"
- "Dynamic wireless framework for Smart City IoT infrastructure"
- "HybridMeshMeet: development of a hybrid system for neighborhood relation detection based on mesh network for MILES industry"
- "Integrated system for epidemiological threat analysis and business process management supported by personnel and corporate asset location techniques" (PL)
- "Augmented Intelligence Ecosystem for Water Distribution Network Analysts" (PL)
Publications
2006
- Grochla K.; Pecka P.; The Markov chain model of RED active queuing management algorithm; Proceedings from HET-NETs 2006; 2006
- Czachórski T.; Grochla K.; Pekergin F.; A model of TCP flows dynamics; Theoretical and Applied Informatics; 2006
- Czachórski T.; Grochla K.; Pekergin F.; Some contributions to the modelling the dynamics of (TCP,UDP)/RED flows over reliable and unreliable connections; Proceedings from HET-NETs 2006; 2006
- Czachórski T.; Domańska J.; Grochla K.; Dynamics of TCP/IP flows in presence of various AQM algorithms, a fluid flow approximation model; Third EuroNGI Workshop on New Trends in Modelling, Quantitative methods and Measurements; 2006
- Czachórski T.; Domańska J.; Grochla K.; TCP/IP dynamics in wireless environment, a fluid-flow model; Third Workshop on Wireless and Mobility; 2006
2005
- Grochla K.; Fourneau J.; Simulation Analysis of Eulerian Routing with Shortcuts in All-optical networks; materiały konferencji: Second EuroNGI Workshop on; 2005
- Głomb P.; Grochla K.; Modeling Connection State with Kernel PCA; 2nd EuroNGI Workshop on New Trends in Modeling, Quantitative Methods and Measurements; 2005
2004
2003
- Nowak S.; Grochla K.; Simple Traffic Shaping Algorithm for All-optical Networks; 10th Polish Teletraffic Symposium PSRT 2003; 2003
- Nowak S.; Grochla K.; Wpływ mechanizmów kształtowania ruchu na wydajność sieci czysto optycznych; Studia Informatica; 2003
2002
- Grochla K.; Głomb P.; Kształtowanie ruchu w routerach pracujących w systemie Linux; Studia Informatica; 2002
- Głomb P.; Grochla K.; Modelowanie stacji roboczych w sieci ATM przy użyciu symulatora OMNeT++; Studia Informatica; 2002
2001
- Grochla K.; A tool for network traffic generation and transmission delay measurement; Archiwum Informatyki teoretycznej i Stosowanej; 2001
- Grochla K.; Czachórski T.; Sochan A.; A tool for network traffic generation and transmission delay measurement; Proceedings of 8th Polish Teletraffic Symposium; 2001
- Grochla K.; Generator pakietów w środowisku sieci heterogenicznych; Studia Informatica; 2001