Internet of Things Group

Internet of Things Group

The IoT Group research is concentrated on IoT communication systems, including: designing and performance analysis of IoT network protocols, interoperability in IoT, data semantic description, autoconfiguration, minimization of energy consumption and localization in embedded devices.

Group leader: 

Group members: 

In Press


Strzoda A, Grochla K, Frankiewicz A, Łaskarzewski Z.  2022.  Measurements and Analysis of Large Scale LoRa Network Efficiency. International Wireless Communications and Mobile Computing Conference, IWCMC .


Książek K, Grochla K.  2021.  Flexibility Analysis of Adaptive Data Rate Algorithm in LoRa Networks. IEEE IWCMC 2021 - 17th Int. Wireless Communications & Mobile Computing Conference.
Marjasz R, Strzoda A, Połys K, Grochla K.  2021.  Mitigation of LoRa interferences via dynamic channel weights. European Simulation and Modelling Conference (formelly European Simulation Multiconference) - ESM . :150-154.
Marjasz R, Połys K, Strzoda A, Grochla K.  2021.  Improving Delivery Ratio in LoRa Network. Proceedings of the 19th ACM International Symposium on Mobility Management and Wireless Access.
Marek D, Grochla K, Duda J.  2021.  Channel State Information Variability in BLE Positioning Measurements. International Conference On Systems Engineering.


Grochla K, Połys K.  2020.  Heuristic Algorithm for Gateway Location Selection in Large Scale LoRa Networks. ACM International Wireless Communications and Mobile Computing Conference.  (2.12 MB)
Frankiewicz A, Glos A, Grochla K, Łaskarzewski Z, Miszczak J, Połys K, Sadowski P, Strzoda A.  2020.  LP WAN Gateway Location Selection Using Modified K-Dominating Set Algorithm. Symposium on Modelling, Analysis, and Simulation of Computer and Telecommunication Systems.


Połys K, Grochla K, Gorawski M, Frankiewicz A.  2019.  Accuracy of UWB Location Tracking Devices When on the Move. International Conference on Computer Networks. International Conference on Computer Networks:233-241.
Marjasz R, Grochla K, Strzoda A, Łaskarzewski Z.  2019.  Simulation Analysis of Packet Delivery Probability in LoRa Networks.. Communications in Computer and Information Science. 1039
Suila GKuaban, Czekalski P, Molua EL, Grochla K.  2019.  An Architectural Framework Proposal for IoT Driven Agriculture. International Conference on Computer Networks.
Czachórski T, Grochla K.  2019.  Diffusion Approximation Models for Cloud Computations with Task Migrations. 2019 IEEE International Conference on Fog Computing (ICFC).
Grochla K, Marjasz R, Połys K, Strzoda A.  2019.  Kolizje pakietów w sieciach LoRa w zastosowaniach smart city. Przegląd Telekomunikacyjny+ Wiadomości Telekomunikacyjne.
Gorawski M, Grochla K.  2019.  "Graph Representation of Linear Infrastructure in Smart City IoT Systems. 11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT) .


Akinwande OJ, Gelenbe E.  2018.  A Reinforcement Learning Approach to Adaptive Forwarding in Named Data Networking. Computer and Information Sciences - 32nd International Symposium, ISCIS 2018, Held at the 24th IFIP World Computer Congress, WCC 2018, Poznan, Poland, September 20-21, 2018, Proceedings.


Nowak S, Nowak M, Grochla K, Pecka P.  2017.  Application of Fault-Tolerant GQP Algorithm in Multihop AMI Networks. Computer Networks. CN 2017. Communications in Computer and Information Science, vol 718. :70-80.
Grochla K, Nowak M, Pecka P, Nowak S.  2017.  Influence of message-oriented middleware on performance of network management system: a modelling study.. Multimedia and Network Information Systems. . Advances in Intelligent Systems and Computing, Vol. 506:379-393.


Grochla K, Połys K.  2016.  Using Kalman Filters on GPS Tracks. Man–Machine Interactions 4. :663–672.
Grochla K, Połys K.  2016.  Subcarrier Allocation for LTE Soft Frequency Reuse Based on Graph Colouring. Information Sciences and Systems 2015. :447–454.
Grochla K, Połys K.  2016.  Analiza wpływu mocy nadawania stacji bazowych na mechanizmy równoważenia obciążenia w sieciach LTE. Materiały konferencyjne Krajowego Sympozjum Telekomunikacji i Teleinformatyki.
Nowak S, Nowak M, Grochla K, Pecka P.  2016.  Global Queue Pruning Method for Efficient Broadcast in Multihop Wireless Networks. Computer and Information Sciences: 31st International Symposium, ISCIS 2016, Kraków, Poland, October 27–28, 2016, Proceedings. :214–224.
Nowak S, Nowak M, Grochla K, Pecka P.  2016.  Efektywne rozgłaszanie w wielohopowej sieci bezprzewodowej. Effective Broadcasts in Multihop Wireless Network. Przegląd Telekomunikacyjny - Wiadomości Telekomunikacyjne. (8-9):887-891.
Słabicki M, Grochla K.  2016.  Performance evaluation of CoAP, SNMP and NETCONF protocols in fog computing architecture. NOMS 2016 - 2016 IEEE/IFIP Network Operations and Management Symposium.
Masek P., Słabicki M, Hosek J., Grochla K.  2016.  Transmission Power Optimization in Live 3GPP LTE-A Indoor Deployment. Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2016 8th International Congress on.
Słabicki M, Grochla K.  2016.  PyLTEs – Python LTE Evaluation Framework for Quick and Reliable Network Optimization. 39th International Conference on Telecommunications and Signal Processing (TSP).
Czachórski T, Gelenbe E, Grochla K, Lent R.  2016.  Computer and Information Sciences ISCIS 2016. Communications in computer Information Science. 659:500.


Grochla K, Połys K.  2015.  Dobór parametrów mechanizmu zwielokrotnienia wykorzystania częstotliwości SFR w sieciach LTE. Materiały konferencyjne Krajowego Sympozjum Telekomunikacji i Teleinformatyki.
Grochla K, Gorawski M, Połys K.  2015.  Comparison of Measurements and Simulation Model of Indoor Signal Level Variation in LTE Networks. Proceedings of the 8th International Conference on Simulation Tools and Techniques.
Gorawski M, Grochla K, Połys K.  2015.  Variability of LTE Signal in Indoor Environment. Internet in the Information Society, X Scientific Conference.
Słabicki M, Grochla K.  2015.  Performance evaluation of snmp, netconf and cwmp management protocols in wireless network. Electronics, Communications and Networks IV: Proceedings of the 4th International Conference on Electronics, Communications and Networks (CECNET IV), Beijing, China, 12–15 December 2014.
Słabicki M, Grochla K.  2015.  Local approach to power management in LTE networks. Telecommunications and Signal Processing (TSP), 2015 38th International Conference on.
Masek P, Hosek J, Zakaria Y, Uhlir D, Novotny V, Słabicki M, Grochla K.  2015.  Experimental evaluation of RAN modelling in indoor LTE deployment. Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2015 7th International Congress on.
Gorawski M, Skrzewsk M, Gorawski M, Gorawska A.  2015.  Neural networks in petrol station objects calibration. International Conference on Algorithms and Architectures for Parallel Processing. :714-723.
Grochla K, Foremski P.  2015.  Demo: Wireless Link Selection on Smartphone: Throughput vs Battery Drain. MobiCom '15 Proceedings of the 21st Annual International Conference on Mobile Computing and Networking. :190–192.


Giambene G, Yahiya TAli, Le VAnh, Grochla K, Połys K.  2014.  Resource Management and Cell Planning in LTE Systems. Wireless Networking for Moving Objects. :177–197.
Nowak S, Nowak M, Grochla K.  2014.  Properties of advanced metering infrastructure networks' topologies. 2014 IEEE Network Operations and Management Symposium (NOMS).
Słabicki M, Grochla K.  2014.  The automatic configuration of transmit power in LTE networks based on throughput estimation. 2014 IEEE 33rd International Performance Computing and Communications Conference (IPCCC).
Gorawski M, Grochla K.  2014.  Review of mobility models for performance evaluation of wireless networks. Advance in Intelligent Systems and Computing. 242:567–577.
Atmaca T., Czachórski T, Grochla K, Nycz T., Pekergin F.  2014.  A model of boot-up storm dynamics. Computer and Information Sciences III. :371–379.
Foremski P, Gorawski M, Grochla K.  2014.  Source Model of TCP Traffic in LTE Networks. Information Sciences and Systems 2014.


Grochla K, Połys K.  2013.  Influence of the Handoff Threshold Hysteresis on Heterogeneous Wireless Network Performance. Proceedings of 7th International Working Conference HET-NETs.
Gorawski M, Marks P, Gorawski M.  2013.  Modeling Data Stream Intensity in Distributed Stream Processing System, Computer Networks. Communications in Computer and Information Science Volume. :372–383.
Gorawski M, Gorawski M, Dyduch S.  2013.  Use of grammars and machine learning in ETL systems that control load balancing process. 15th IEEE International Conference on High Performance Computing and Communications. HPCC 2013. :1709–1714.


Grochla K.  2012.  Simulation analysis of a virtualization system performance in Boot Up Scenario. International Conference on Networking and Future Internet. :21–24.
Czachórski T, Grochla K, Nycz T., Pekergin F.  2012.  Duration of boot-up storm period. 17th Polish teletraffic symposium. :145–150.


Grochla K, Czachórski T, Klamka J.  2011.  Numerical Model of Tcp in 802.16 Networks Using Fluid Flow Approximation. First International Conference on Networking and Future Internet 2011 (ICNFI 2011).
Czachórski T, Grochla K, Józefiok A, Nycz T.  2011.  Simulation, Markov Chain and Diffusion Approximation Models – a Case Study. “Computer Science & Information Technologies” (CSIT’2011).
Nowak M, Nowak S, Pecka P, Grochla K.  2011.  Content Identification in PI CAN Network. Computer Networks. :164–172.


Józefiok A, Czachórski T, Grochla K.  2010.  Performance evaluation of multiuser interactive networking system. Proceedings of 6th International Conference HET-NETs 2010. :223–231.


Grochla K, Sochan A.  2009.  Adaptive Streaming of Stereographic Video. Computer Networks – Communications in Computer and Information Science, Springer. 39:87–94.


Grochla K, Sochan A, Głomb P.  2008.  Transmission of scalable video streams. Proceedings from the 4th Euro-NGI Workshop on New trends in network architectures and services.
Czachórski T, Grochla K, Pekergin F.  2008.  TCP performance for a wireless traffic, a diffusion approxiation model. Proceedings from Workshop on Wireless and mobility in Future Generation Internet.


Grochla K, Czachórski T, Busic A., Fourneau J.M.  2007.  Simulation Analysis of Deflection Routing in Hypercube. Proceedings from Polish Teletraffic Symposium.
Czachórski T, Grochla K, Pekergin F.  2007.  Fluid-flow Approximation Model of TCP-NCR in wired-wireless networks. Proceedings from Polish Teletraffic Symposium.
Grochla K.  2007.  Simulation Analysis of Active Queue Management Algorithms in IP Networks. Proceedings from Fourth EuroFGI Workshop on "New Trends in Modelling, Quantitative Methods and Measurements".
Czachórski T, Grochla K, Pekergin F.  2007.  Stability and Dynamics of TCP-NCR(DCR) Protocol. Lecture Notes in Computer Systems 4396 - Wireless Systems and Mobility in Next Generation Internet. :241–254.


Czachórski T, Grochla K, Pekergin F.  2006.  A model of TCP flows dynamics. Theoretical and Applied Informatics. 18:279–292.
Czachórski T, Domańska J, Grochla K.  2006.  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.


Głomb P, Grochla K.  2005.  Modeling Connection State with Kernel PCA. 2nd EuroNGI Workshop on New Trends in Modeling, Quantitative Methods and Measurements.
Grochla K, Fourneau J.M.  2005.  Simulation Analysis of Eulerian Routing with Shortcuts in All-optical networks. materiały konferencji: Second EuroNGI Workshop on.



Nowak S, Grochla K.  2003.  Simple Traffic Shaping Algorithm for All-optical Networks. 10th Polish Teletraffic Symposium PSRT 2003. :413–418.



Grochla K.  2001.  A tool for network traffic generation and transmission delay measurement. Proceedings of 8th Polish Teletraffic Symposium.
Grochla K.  2001.  A tool for network traffic generation and transmission delay measurement. Archiwum Informatyki teoretycznej i Stosowanej. 13


Grochla K, Sochan A.  2000.  Sieci prywatne oparte na technologii ATM. Studia Informatica. 1