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Dimitrios Zorbas
Researcher, Assistant Professor, Marie-Curie Alumnus

    Journals

  1. D. Zorbas and A. Sabyrbek, "Supporting Critical Downlink Traffic in LoRaWAN", Computer Communications, Vol. 228, 107981, Dec. 2024
  2. L. Almstedt et al. (authors in alphabetical order), "A Comprehensive Pest Monitoring System for Brown Marmorated Stink Bug", IEEE Transactions on Agrifood Electronics, to appear, 2024
  3. L. Almstedt et al. (authors in alphabetical order), "Beyond The Naked Eye: Computer Vision for Detecting Brown Marmorated Stink Bug and Its Punctures", IEEE Transactions on Agrifood Electronics, to appear, 2024
  4. A. Kargar, D. Zorbas, S. Tedesco, M. Gaffney, B. O'Flynn, "Detecting Halyomorpha halys Using a Low-Power Edge-based Monitoring System", Computers and Electronics in Agriculture, Vol. 221, 108935, June 2024
  5. A. Eduard, D. Urazayev, A. Sabyrbek, D. Orel, D. Zorbas, "Ad-Hoc Train-Arrival Notification System for Railway Safety in Remote Areas", Internet of Things, Vol. 25, April 2024, 101062
  6. D. Zorbas, "Downlink Spreading Factor Selection in LoRaWAN", Computer Communications, Vol. 215, Feb. 2024, pp. 112-119
  7. D. Zorbas, "Improving LoRaWAN Downlink Performance in the EU868 Spectrum", Computer Communications, Vol. 195, Nov. 2022, pp. 303-314
  8. A. Triantafyllou, D. Zorbas, P. Sarigiannidis, "Time-Slotted LoRa MAC with Variable Payload Support", Computer Communications, Vol. 193, Sep. 2022, pp. 146-154
  9. H. Sherazi, D. Zorbas, B. O'Flynn, "A Comprehensive Survey on RF Energy Harvesting: Applications and Performance Determinants", Sensors, Vol. 22, No. 8, pp. 2990, 2022
  10. P. Gkotsiopoulos, D. Zorbas, C. Douligeris, "Performance Determinants in LoRa Networks: a Literature Review", IEEE Communications Surveys & Tutorials, Vol. 23, No 3, pp. 1721-1758, 2021
  11. A. Karalis, D. Zorbas, C. Douligeris, "Optimal Initial Synchronization Time in the Minimal 6TiSCH Configuration", IEEE Access, Vol. 9, pp. 69316-69334, 2021
  12. D. Zorbas, C. Caillouet, K. Abdelfadeel, D. Pesch, "Optimal Data Collection Time in LoRa Networks: a Time-Slotted Approach", Sensors, Vol. 21, no. 4, 2021
  13. D. Zorbas, X. Fafoutis, "Time-Slotted LoRa Networks: Design Considerations, Implementations, and Perspectives", IEEE IoT Magazine, Vol. 4, Issue 1, pp. 84-89, 2021
  14. D. Zorbas, K. Abdelfadeel, P. Kotzanikolaou, D. Pesch, "TS-LoRa: Time-Slotted LoRa(WAN) for the Industrial Internet of Things", Computer Communications, Vol. 153, pp. 1-10, Mar. 2020
  15. K. Abdelfadeel, D. Zorbas, V. Cionca, D. Pesch, "FREE - Fine-grained Scheduling for Reliable and Energy Efficient Data Collection in LoRaWAN", IEEE Internet of Things Journal, vol. 7, no. 1, pp. 669-683, Jan. 2020
  16. A. Karalis, D. Zorbas, C. Douligeris, "Collision-Free Advertisement Scheduling for IEEE 802.15.4-TSCH Networks", Sensors, 19(8), 1789, MDPI, 2019
  17. L. Di Puglia Pugliese, D. Zorbas, F. Guerriero, C. Douligeris, "Optimal Routing Approaches for IEEE 802.15.4 TSCH Networks", in Transactions on Emerging Telecommunications Technologies, Vol. 30, Issue 3, Mar. 2019, Wiley
  18. V. Kotsiou, G.Z. Papadopoulos, D. Zorbas, P. Chatzimisios, F. Theoryle, "Blacklisting-based Channel Hopping Approaches in Low-power and Lossy Networks", in IEEE Communications Magazine, Vol. 57, Issue 2, Feb. 2019
  19. D. Zorbas, P. Raveneau, Y. Ghamri-Doudane, C. Douligeris, "The Charger Positioning Problem in Clustered RF-power Harvesting Wireless Sensor Networks", in Adhoc Networks, Volume 78, September 2018, Pages 42-53, Elsevier
  20. D. Zorbas, P. Raveneau, Y. Ghamri-Doudane, "Assessing the cost of deploying and maintaining indoor wireless sensor networks with RF-power harvesting properties", Pervasive and Mobile Computing, Vol. 43, January 2018, Pages 64-77, Elsevier
  21. T. Razafindralambo, M. Erdelj, D. Zorbas, E. Natalizio, "Spread and Shrink: Point of Interest Discovery and Coverage with Mobile Wireless Sensors", Journal of Parallel and Distributed Computing, Vol. 102, April 2017, pages 16-27, Elsevier
  22. D. Zorbas, L. Di Puglia Pugliese, T. Razafindralambo, F. Guerriero, "Optimal drone placement and cost-efficient target coverage", Journal of Networks and Computer Applications, Vol. 75, Nov. 2016, Pages 16-31, Elsevier
  23. L. Di Puglia Pugliese, F. Guerriero, D. Zorbas, T. Razafindralambo, "Modelling the mobile target covering problem using flying drones", Optimization Letters, Vol. 10, Issue 5, Pages 1021-1052, Springer, 2016
  24. D. Zorbas, T. Razafindralambo, "Prolonging network lifetime under probabilistic target coverage in wireless mobile sensor networks", Computer Communications, Vol. 36, Issue 9, Pages 1039-1053, Elsevier, 2013
  25. D. Zorbas, C. Douligeris, "Connected coverage in WSNs based on critical targets", Computer Networks, Elsevier, Vol. 55, Issue 6, pages 1412-1425, 2011, Elsevier
  26. D. Zorbas, D. Glynos, P. Kotzanikolaou, C. Douligeris, "Solving coverage problems in wireless sensor networks using cover sets", Ad hoc Networks, Vol. 8, Issue 4, June 2010, Pages 400-415, Elsevier

    27. Conferences & Workshops

  27. D. Zorbas, "LoRaWAN Network Coexistence in the EU868 Spectrum", 9th IEEE Conference on Standards for Communications and Networking, Belgrade, Serbia, Nov. 2024
  28. B. Baimukhanov, B. Gilazh, D. Zorbas, Autonomous Lightweight Scheduling in LoRa-Based Networks Using Reinforcement Learning, IEEE International Black Sea Conference on Communications and Networking, Tbilisi, Georgia, June 2024
  29. T. Nurbay, S. Kassenov, A. Yeltay, D. Zorbas, Cooperative Transmission of Large Files Over LoRa in Multimedia IoT Networks, IEEE International Black Sea Conference on Communications and Networking, Tbilisi, Georgia, June 2024 (Best paper award candidate)
  30. A. Kargar, S. Tedesco, D. Zorbas, M. Gaffney, B. O'Flynn, "Y-Net: Insect Counting and Segmentation using Deep Learning on Embedded Devices", IEEE International Instrumentation and Measurement Technology Conference, Glasgow, UK, May 2024
  31. R. Khamitov, D. Orel, D. Zorbas, Predicting Solar-Harvested Energy for Resource-Constrained IoT Devices Using Machine Learning, IEEE DCOSS Workshops, Abu Dhabi, UAE, April 2024
  32. D. Assylbek, A. Nadirkhanova, D. Zorbas, "Energy-Efficient Clock-Synchronization in IoT Using Reinforcement Learning", 20th Annual International Conference on Distributed Computing in Smart Systems and the Internet of Things, Abu Dhabi, UAE, April 2024
  33. S. Javed, D. Zorbas, "A LoRaWAN Adaptive Retransmission Mechanism", IEEE Conference on Standards for Communications and Networking, Munich, Germany, Nov. 2023
  34. T. Zarymkanov, A. Kargar, C. Pinotti, B. O'Flynn, D. Zorbas, "Enhancing Machine Learning Training Performance in Smart Agriculture Datasets Using a Mobile App", IEEE Internatonal Workshop on Metrology for Agriculture and Forestry, Pisa, Italy, Nov. 2023
  35. L. Zurek, A. Kargar, B. O'Flynn, D. Niederprum, L. Wolf, D. Zorbas, "Evaluation of Wireless Technologies for an Embedded Camera-Based Pest Monitoring System", IEEE Internatonal Workshop on Metrology for Agriculture and Forestry, Pisa, Italy, Nov. 2023
  36. B. Baimukhanov, D. Zorbas, "Infrastructure-less Long-Range Text-Messaging System", 8th International Conference on Information and Communication Technologies for Disaster Management (ICT-DM), Cozensa, Italy, Sep. 2023
  37. A. Karalis, D. Zorbas, C. Douligeris, "Reducing the Synchronization Time in the Minimal 6TiSCH Configuration Under Channel Uncertainty", IEEE International Black Sea Conference on Communications and Networking, Istanbul, Turkey, July 2023 (Best paper award candidate)
  38. Y. Magzym, A. Eduard, D. Urazayev, X. Fafoutis, D. Zorbas, "Synchronized ESP-NOW for Improved Energy Efficiency", IEEE International Black Sea Conference on Communications and Networking, Istanbul, Turkey, July 2023
  39. S. Javed, D. Zorbas, "Downlink Traffic Demand-Based Gateway Activation in LoRaWAN", 28th IEEE Symposium on Computers and Communications (ISCC), Tunis, Tunisia, July 2023
  40. A. Eduard, D. Urazayev, A. Sabyrbek, Y. Magzym, D. Zorbas, "Infrastructure-Less Long-Range Train-Arrival Notification System", 28th IEEE Symposium on Computers and Communications (ISCC), Tunis, Tunisia, July 2023
  41. L. Almstedt et al., Technological Innovations in Agriculture for Scouting Halyomorpha halys in Orchards, 5th International Workshop on Intelligent Systems for the Internet of Things (ISIoT 2023), Pafos, Cyprus
  42. D. Urazayev, A. Eduard, M. Ahsan, D. Zorbas, "Indoor Performance Evaluation of ESP-NOW", 2023 IEEE International Conference on Smart Information Systems and Technologies, Astana, Kazakhstan, May 2023 (Best paper award)
  43. D. Zorbas, D. Hackett, B. O'Flynn, "On the Coexistence of LoRa and RF Power Transfer", IEEE International Instrumentation and Measurement Technology Conference, Kuala Lumpur, Malaysia, May 2023
  44. S. Javed, D. Zorbas, "LoRaWAN Downlink Policies for Improved Fairness", IEEE Conference on Standards for Communications and Networking (CSCN), Thessaloniki, Greece, Nov. 2022
  45. A. Kargar, M. Wilk, D. Zorbas, M. Gaffney, B. O'Flynn, "A Novel Resource-Constrained Insect Monitoring System based on Machine Vision with Edge AI", 5th IEEE International Conference on Image Processing, Applications and Systems (IPAS), Genova, Italy, Dec. 2022
  46. D. Zorbas, "ActLoRa: Supporting actuators in LoRaWAN", IEEE International Conference on Communications (ICC), Seoul, S. Korea, May 2022
  47. D. Zorbas, "Improving Delay and Capacity of TS-LoRa with Flexible Guard Times", 2nd International Workshop on Data Distribution in Industrial and Pervasive Internet, in conjunction with WoWMoM, Cork, Ireland, Aug. 2020
  48. D. Zorbas, "Design Considerations for Time-Slotted LoRa(WAN)", 1st International Workshop on Massive LoRa deployments, in conjuntion with EWSN'20, Lyon, France, Feb. 2020
  49. D. Zorbas, "Autonomous Collision-Free Scheduling for LoRa-based Industrial Internet of Things", 1st International Workshop on Data Distribution in Industrial and Pervasive Internet, in conjunction with WoWMoM, Washington DC, USA, Jun. 2019
  50. D. Zorbas, P. Maille, B. O'Flynn, C. Douligeris, "Fast and Reliable LoRa-based Data Transmissions", 24th IEEE Symposium on Computers and Communications (ISCC), Barcelona, Spain, Jun. 2019
  51. D. Zorbas, B. O'Flynn, "A Network Architecture for High Volume Data Collection in Agricultural Applications", 1st International Workshop on Wireless sensors and Drones in Internet of Things (Wi-DroIT), in conjunction with DCOSS, Santorini Island, Greece, May 2019
  52. C. Caillouet, T. Razafindralambo, D. Zorbas, "Optimal placement of drones for fast sensor energy replenishment using wireless power transfer", Wireless Days 2019, Manchester, UK, Apr. 2019 (Best Paper Award)
  53. D. Zorbas, K. Abdelfadeel, V. Cionca, B. O'Flynn, D. Pesch, "Offline Scheduling Algorithms for Time-Slotted LoRa-based Bulk Data Transmission" IEEE 5th World Forum on Internet of Things, Limerick, Ireland, Apr. 2019
  54. A. Karalis, D. Zorbas, C. Douligeris, "Collision-Free Broadcast Methods for IEEE 802.15.4-TSCH Networks Formation", The 21st ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM), Montreal, Canada, ACM, Oct. 2018
  55. D. Zorbas, B. O'Flynn, "Collision-Free Sensor Data Collection using LoRaWAN and Drones", Global Information Infrastructure and Networking Symposium (GIIS 2018), Thessaloniki, Greece, IEEE, Oct. 2018
  56. L. Di Puglia Pugliese, D. Zorbas, F. Guerriero, "Modeling and solving the packet routing problem in industrial IoT networks", 2018 International Conference on Optimization and Decision Science (ODS), Taormina, Italy, Springer, Sep. 2018
  57. D. Zorbas, P. Kotzanikolaou, C. Douligeris, "R-TSCH: Proactive Jamming Attack Protection for IEEE 802.15.4-TSCH Networks", in the 23rd IEEE Symposium on Computers and Communications (ISCC 2018), Natal, Brazil, June 2018
  58. D. Zorbas, G.Z. Papadopoulos, P. Maille, N. Montavont, C. Douligeris, "Improving LoRa Network Capacity Using Multiple Spreading Factor Configurations", in the 25th International Conference on Telecommunications (ICT), Saint-Malo, France, June 2018
  59. D. Zorbas, C. Douligeris, "Computing Optimal Drone Positions to Wirelessly Recharge IoT Devices", in the 11th International Workshop on Wireless Sensor, Robot and UAV Networks (WiSARN) in conjunction with IEEE INFOCOM 2018, Honolulu, HI, USA, April 2018
  60. D. Zorbas, V. Kotsiou, F. Theoleyre, G.Z. Papadopoulos, C. Douligeris,"LOST: Localized Blacklisting Aware Scheduling Algorithm for IEEE 802.15.4-TSCH Networks", in IFIP Wireless Days, April 2018, Dubai, UAE
  61. D. Zorbas, G.Z. Papadopoulos, C. Douligeris,"Local or Global Radio Channel Blacklisting for IEEE 802.15.4-TSCH Networks?", in IEEE International Conference on Communications (ICC), May 2018, Kansas City, USA
  62. D. Zorbas, P. Raveneau, Y. Ghamri-Doudane, C. Douligeris,"On the Optimal Number of Chargers in Battery-Less Wirelessly Powered Sensor Networks", 22nd IEEE Symposium on Computers and Communications, July 2017, Heraklion, Crete, Greece
  63. D. Zorbas, P. Raveneau, Y. Ghamri-Doudane, "On optimal charger positioning in clustered RF-power harvesting wireless sensor networks"(short paper), in the 19th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWIM), Malta, Nov. 13-17, 2016
  64. D. Zorbas, P. Raveneau, Y. Ghamri-Doudane, "Assessing the cost of RF-power harvesting nodes in wireless sensor networks", in the 2016 IEEE Global Communications Conference (GLOBECOM), Washington DC, USA, 4-8 Dec., 2016
  65. C. Katsikiotis, D. Zorbas, P. Chatzimisios, "Connectivity restoration and amelioration in wireless ad-hoc networks: A practical solution", in the 1st International Workshop on Autonomous Monitoring and Networking (WAMN'14), Rhodes, Greece, 2014
  66. D. Zorbas, C. Douligeris, "A low-overhead localized target coverage algorithm in wireless sensor networks", in the 1st International Workshop on Autonomous Monitoring and Networking (WAMN'14), Rhodes, Greece, 2014
  67. D. Zorbas, T. Razafindralambo, "Extending network tree lifetime with mobile and rechargeable nodes", in the 13th International Conference on Ad-Hoc Networks and Wireless, Benidorm, Spain, June 2014
  68. J. Razafimandimby, K. Miranda, D. Zorbas, T. Razafindralambo, "Fast and reliable robot deployment for substitution networks", in the 10th ACM International Symposium on Performance Evaluation of Wireless Ad Hoc, Sensor, and Ubiquitous Networks (PE-WASUN), Barcelona, Spain, Nov. 2013
  69. D. Zorbas, T. Razafindralambo, L. Di Puglia Pugliese, F. Guerriero, "Energy efficient mobile target tracking using flying drones", 4th International Conference on Ambient Systems, Networks and Technologies (ANT 2013), Halifax, Canada, Elsevier, 25-28 June, 2013
  70. N. Gouvy, E. Hamouda Elhafsi, D. Zorbas, N. Mitton, "Energy Efficient Multi-Flow Routing in Mobile Sensor Networks", IEEE WCNC - Wireless Communications and Networking Conference, Shanghai, China, IEEE, 7-10 April, 2013
  71. K. Magklara, D. Zorbas, T. Razafindralambo, "Node discovery and replacement using mobile robot"(invited paper), ADHOCNETS 2012: 4th International Conference on Ad Hoc Networks, Paris, Springer, 16-17 Oct., 2012
  72. D. Zorbas, T. Razafindralambo, "Wireless sensor network redeployment under the target coverage constraint", NTMS'2012: The Fifth IFIP International Conference on New Technologies, Mobility and Security, Istanbul, Turkey, IEEE, 7-10 May, 2012
  73. D. Zorbas, C. Douligeris, V. Fodor, "Target location based sink positioning in wireless sensor networks", 18th International Conference on Telecommunications, Ayia Napa, Cyprus, IEEE, 8-11 May, 2011
  74. D. Zorbas, C. Douligeris, "Efficient target coverage in WSNs with bidirectional communication", 15th International Workshop on Computer-Aided Modeling Analysis and Design of Communication Links and Networks (CAMAD), Miami, USA, IEEE, 3-4 Dec., 2010
  75. D. Zorbas, D. Glynos, C. Douligeris, "Connected partial target coverage and network lifetime in wireless sensor networks", 2nd IFIP Wireless Days Conference, Paris, IEEE, 15-17 Dec., 2009
  76. D. Zorbas, C. Douligeris, "Satisfying coverage and connectivity in bandwidth constrained sensor networks", ISCIT 2009, Incheon, S. Korea, IEEE, 26-28 Sep., 2009
  77. D. Zorbas, D. Glynos, P. Kotzanikolaou, C. Douligeris, "B{GOP}: An adaptive algorithm for coverage problems in wireless sensor networks", 13th European Wireless Conference, Paris, 1-4 April, 2007

    78. Chapters in Books

  78. D. Zorbas, C. Douligeris. Power Efficient Target Coverage in Wireless Sensor Networks, Sustainable Wireless Sensor Networks, Winston Seah and Yen Kheng Tan (Ed.), ISBN: 978-953-307-297-5, InTech, 2010

    79. Demos

  79. K. Salimzhanova, S. Kasenov, R. Saduakhas, D. Urazayev, D. Zorbas, A LoRa 2.4GHz Testbed for Experiment Repeatability, IEEE Conference on Standards for Communications and Networking, Nov. 2024, Belgrade, Serbia
  80. D. Urazayev, D. Zorbas, Using Supercapacitors as a Sustainable Energy Storage Solution for Battery-less IoT Devices, IEEE International Black Sea Conference on Communications and Networking, Tbilisi, Georgia, June 2024
  81. D. Baimukhanov, S. Nassyrov, Z. Bekbolat, D. Urazayev, D. Zorbas, "An Open Hardware RFID Inventory Management System", IEEE International Black Sea Conference on Communications and Networking, Tbilisi, Georgia, June 2024
  82. A. Eduard, D. Urazayev, Y. Magzym, D. Zorbas, "Implementation of a Train-Arrival Notification System", 28th Symposium on Computers and Communications, Jul. 2023, Tunis, Tunisia
  83. I. Akanova, D. Urazayev, Y. Kadirzhanov, D. Zorbas, "A LoRaWAN Emulator Testbed", 28th Symposium on Computers and Communications, Jul. 2023, Tunis, Tunisia
  84. D. Zorbas, "A Testbed for Time-Slotted LoRa Communications", IEEE WoWMoM, 2020 (video)

    85. Posters

  85. Z. Bagdauletkyzy, M. Galymgereyev, A. Abzalova, A. Kairatbek, D. Zorbas, "A Simulator for Time-Slotted LoRa Networks", 28th Symposium on Computers and Communications, Jul. 2023, Tunis, Tunisia
  86. D. R. Gawade et al., "A Museum Artefact Monitoring Testbed Using LoRaWAN", 26th IEEE Symposium on Computers and Communications, Sep. 2021, Athens, Greece
  87. C. Caillouet, T. Razafindralambo, D. Zorbas, "Recharging Wireless Sensor Networks Using Drones and Wireless Power Transfer", IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 9-12 September 2018, Bologna, Italy
  88. B. O'Flynn, A. O'Riordan, D. Zorbas, C. O'Mathuna, "The Internet of Plants: Sensing Plant Growth Parameters for Autonomous Greenhouse Control", International Association for Plant Biotechnology, 19-24 August 2018, Dublin, Ireland

    89. Technical Reports

  89. D. Zorbas, T. Razafindralambo, "Modeling the power consumption of a Wifibot and studying energy conservation through a low communication cost", arXiv:1512.04380, Technical Report, Inria Lille - Nord Europe, 2015
  90. D. Zorbas, T. Razafindralambo, "Wireless sensor network redeployment under the target coverage constraint", RR-7818, 2011, Inria Lille - Nord Europe, France

    91. Patents

  91. D. Urazayev, A. Eduard, D. Zorbas; Nazarbayev University. Software for the ESP32-based train arrival notification system. Patent №47400 RK, Application №75492, Requested 11.06.2024; Published 12.06.2024.