PUBLICATIONS

 
 

  1. -R. Langar, "Urban Wireless Networks: Mobility, Routing, and Resource Management Concerns", Habilitation à Diriger des Recherches  de l'Université Pierre et Marie Curie (UPMC), Dec. 2013.

 

Habilitation

  1. 1.A. Laouadi and R. Langar, "Energy and QoS-aware Functional Split Selection in 5G and Beyond O-RAN Networks", IEEE ICC 2025, Montreal, QC, Canada, Jun. 2025.

  2. 2.J. Antoun, W. Jaafar, and R. Langar, "Cost-Effective Power Management for Green Mobile Base Stations", IEEE ICC 2025, Montreal, QC, Canada, Jun. 2025.

  3. 3.M.A. Sakka, W. Jaafar, and R. Langar, "Predicting Cyberattack Duration in Next Generation Networks: A Novel Transformer-based Approach", IEEE ICC 2025, Montreal, QC, Canada, Jun. 2025.

  4. 4.M. Narouwa, L. Mendiboure, S. Maaloul, N.B. Dia, H. Badis, D.M. Molla, M. Berbineau, and R. Langar, "Mobility in 5G Emulators: Implementation and Evaluation", 28th IEEE International Symposium On Real-Time Distributed Computing (IEEE ISORC 2025), Toulouse, France, May 2025.

  5. 5.M.A. Aboud, N. Zangar, R. Langar, M. Berbineau, and J. Madec, "Optimizing Resource Allocation and Scheduling towards FRMCS and GSM-R networks coexistence in Railway Systems", IEEE GIIS 2025, Dubai, UAE, Feb. 2025.

  6. 6.B. Boussalem, V.F. Silva, S.B. Bakhouche, R. Langar, and S. Cherrier, "Deep Learning-based DDoS Attacks Detection and Mitigation in 5G-V2X Networks", IEEE GIIS 2025, Dubai, UAE, Feb. 2025. (Demo Paper).

  7. 7.M. Awad, A. Ait-Hamid, Y. Ranganathan, N. Choubik, R. Langar, and W. Jaafar, "xApps for DDoS Attacks Detection and Mitigation in 5G-V2X O-RAN Networks", IEEE CIoT 2024, Montreal, QC, Canada, Oct. 2024. (Demo Paper).

  8. 8.K. Snoussi, W. Jaafar, and R. Langar, "S4HI: A Novel Learning-based Human Identification Method from Behavioral Data", IEEE CIoT 2024, Montreal, QC, Canada, Oct. 2024. (Best Student Paper Award).

  9. 9.M. Ait-Yahia, M.M. Gueye, W. Jaafar, and R. Langar, "On the Joint Placement of Blockchain and Users’ Virtualized Services in the Internet of Vehicles", IEEE CIoT 2024, Montreal, QC, Canada, Oct. 2024.

  10. 10.F. Al-Alyan, B. Boussalem, W. Jaafar, and R. Langar, "Secure Peer-to-Peer Federated Learning for Efficient Cyberattacks Detection in 5G and Beyond Networks", IEEE ICC 2024, Denver, CO, USA, Jun. 2024.

  11. 11.T. Badageri, B. Hamdaoui, and R. Langar, "Load-Balanced Multipath Routing Through Software-Defined Networking", IEEE IWCMC 2024, Cyprus, May 2024.

  12. 12.B. Boussalem, V.F. Silva, A. Boualouache, R. Langar, and S. Cherrier, "Deep Learning-based Smart Radio Jamming Attacks Detection on 5G V2I/V2N Communications", IEEE GLOBECOM 2023, Kuala-Lumpur, Malaysia, Dec. 2023.

  13. 13.R. Bekkouche, M. Omar, and R. Langar, "Securing 5G Network Slices with Adaptive Machine Learning Models as-a-Service: A Novel Approach", IEEE GLOBECOM 2023, Kuala-Lumpur, Malaysia, Dec. 2023.

  14. 14.B. Boussalem, M.A. Sakka, V.F. Silva, W. Jaafar, A. Ben Letaifa, and R. Langar, "DDoS Attacks Mitigation in 5G-V2X Networks: A Reinforcement Learning-based Approach", IEEE/IFIP CNSM 2023, Niagara-Falls, ON, Canada, Oct. 2023.

  15. 15.M.O. Nait Belaid, V. Audebert, B. Deneuville, and R. Langar, "5G-based Fault Location, Isolation, and Service Recovery: Field Experiment", 27th International Conference on Electricity Distribution (CIRED), Rome, Italy, Jun. 2023.

  16. 16.M.R. Eressa, H. Badis, R. Langar, and D. Grosso, “Stochastic Compositional Kernel Estimation for Gaussian Process Models”, 15th ACM International Conference on Machine Learning and Computing (ICMLC), Zhuhai, China, Feb. 2023.

  17. 17.B. Boussalem, V.F. Silva, R. Langar, and S. Cherrier, "DDoS Attacks Detection and Mitigation in 5G and Beyond Mobile Networks: A Deep Learning-based Approach", IEEE GLOBECOM 2022, Rio-de-Janeiro, Brazil, Dec. 2022.

  18. 18.M.O. Nait Belaid, V. Audebert, B. Deneuville, and R. Langar, "SD-RAN based Approach for Smart Grid Critical Traffic Routing and Scheduling in 5G Mobile Networks", IEEE GLOBECOM 2022, Rio-de-Janeiro, Brazil, Dec. 2022.

  19. 19.M.R. Eressa, H. Badis, R. Langar, and D. Grosso, “Random Sparse Approximation for a Fast and Scalable Gaussian Process”, 2nd International Seminar on Machine Learning, Optimization, and Data Science (ISMODE), Jakarta, Indonesia, Dec. 2022.

  20. 20.M.O. Nait Belaid, V. Audebert, B. Deneuville, and R. Langar, "Smart Grid Critical Traffic Routing and Link Scheduling in 5G IAB Networks", IEEE SmartGridComm 2022, Singapore, Oct. 2022.

  21. 21.M.O. Nait Belaid, V. Audebert, B. Deneuville, and R. Langar, "Defining an MV/LV Protection, Automation, and Control system based on 5G network", CIGRE 2022, Paris, France, Aug. 2022.

  22. 22.B. Boussalem, V.F. Silva, R. Langar, and S. Cherrier, "Deep Learning based Approach for DDoS Attacks Detection and Mitigation in 5G and Beyond Mobile Networks", IEEE NetSoft 2022, Milan, Italy, Jun. 2022. (Best Demo Paper Award).

  23. 23.R. Bekkouche, M. Omar, R. Langar, and B. Hamdaoui, "Ultra-Lightweight and Secure Intrusion Detection System for Massive-IoT Networks", IEEE ICC 2022, Seoul, South Korea, May 2022.

  24. 24.S. Matoussi, I. Fajjari, N. Aitsaadi, and R. Langar, "Deep Learning Based User Slice Allocation in 5G Radio Access Networks", IEEE LCN 2020, Sydney, Australia, Nov. 2020.

  25. 25.S. Cherrier and R. Langar, "Semantic network coding for WSAN in IoT applications", GIIS 2020, Tunis, Tunisia, Oct. 2020.

  26. 26.H. Hafaiedh, I. El Korbi, L. Saidane, R. Langar, and A. Kobbane, "Fuzzified Double Game for QoS-Aware LTE-U and WiFi coexistance in 5Ghz Band", GIIS 2020, Tunis, Tunisia, Oct. 2020.

  27. 27.N. Salhab, R. Rahim, and R. Langar, "Autonomous Anomaly Detector for Cloud-Radio Access Network Key Performance Indicators", IFIP Networking 2020, Paris, France, Jun. 2020.

  28. 28.N. Salhab, R. Rahim, R. Langar, and R. Boutaba, "Deep Neural Networks approach for Power Head-Room Predictions in 5G Networks and Beyond", IFIP Networking 2020, Paris, France, Jun. 2020.

  29. 29.H. Bouzidi, A. Outtagarts, A. Hebbar, R. Langar, and R. Boutaba, "Online-based learning for predictive end-to-end network slicing in 5G networks", IEEE ICC 2020, Dublin, Ireland, Jun. 2020.

  30. 30.N. Salhab, R. Rahim, R. Langar, and R. Boutaba, "Offloading Network Data Analytics Function to the Cloud with Minimum Cost and Maximum Utilization", IEEE ICC 2020, Dublin, Ireland, Jun. 2020.

  31. 31.S. Matoussi, I. Fajjari, N. Aitsaadi, and R. Langar, "User Slicing Scheme with Functional Split Selection in 5G Cloud-RAN", IEEE WCNC 2020, Seoul, South Korea, Apr. 2020.

  32. 32.H. Bouzidi, A. Outtagarts, and R. Langar, "Deep Reinforcement Learning Application for Network Latency Management in Software Defined Networks", IEEE GLOBECOM 2019, Waikoloa, Hawaii, USA, Dec. 2019.

  33. 33.N. Salhab, R. Rahim, R. Langar, and R. Boutaba, "Machine Learning based Resource Orchestration for 5G Network Slices", IEEE GLOBECOM 2019, Waikoloa, Hawaii, USA, Dec. 2019.

  34. 34.H. Hafaiedh, I. El Korbi, R. Langar, L. Saidane, and A. Kobbane, "Canonical Coalition Game for Solving WiFi and LTE Coexistance Issues on the 5 Ghz Band", IWCMC 2019, Tangier, Morocco, June 2019.

  35. 35.S. Matoussi, I. Fajjari, N. Aitsaadi, R. Langar, and S. Costanzo, "Joint Functional Split and Resource Allocation in 5G Cloud-RAN", IEEE ICC 2019, Shanghai, China, May 2019.

  36. 36.S. Costanzo, S. Cherrier, and R. Langar, "Network Slicing Orchestration for IoT-BeC3 applications and eMBB services in C-RAN", IEEE INFOCOM 2019, Paris, France, May 2019. Demo paper.

  37. 37.N. Salhab, R. Rahim, and R. Langar, "NFV Orchestration Application for 5G over On-the-fly Provisioned Infrastructure", IEEE INFOCOM 2019, Paris, France, May 2019. Demo paper.

  38. 38.B. Dab, N. Aitsaadi, and R. Langar, "Q-Learning Algorithm for Joint Computation Offloading and Resource Allocation in Edge Cloud", IFIP/IEEE IM 2019, Washington DC, USA, Apr. 2019.

  39. 39.S. Yu, and R. Langar, "Collaborative Computation Offloading for Multi-access Edge Computing", IFIP/IEEE IM 2019, Washington DC, USA, Apr. 2019.

  40. 40.B. Dab, N. Aitsaadi, and R. Langar, "Joint Optimization of Offloading and Resource Allocation Scheme for Mobile Edge Computing", IEEE WCNC 2019, Marrakech, Morocco, Apr. 2019.

  41. 41.B. Dab, N. Aitsaadi, and R. Langar, "A Novel Joint Offloading and Resource Allocation Scheme for Mobile Edge Computing", IEEE CCNC 2019, Las Vegas, USA, Jan. 2019.

  42. 42.H. Bouzidi, D. Luong, A. Outtagarts, A. Hebbar, and R. Langar, "Online-based Learning for Predictive Network Latency in Software-defined Networks", IEEE GLOBECOM 2018, Abu-Dhabi, UAE, Dec. 2018.

  43. 43.N. Salhab, R. Rahim, and R. Langar, "Throughput-aware RRHs Clustering in Cloud-RAN", GIIS 2018, Thessaloniki, Greece, Oct. 2018.

  44. 44.S. Cherrier and R. Langar, "Service Organization in IoT: Mixing Orchestration and Choreography", GIIS 2018, Thessaloniki, Greece, Oct. 2018.

  45. 45.S. Costanzo, I. Fajjari, N. Aitsaadi, and R. Langar, "Dynamic Network Slicing for 5G IoT and eMBB services: A New Design with Prototype and Implementation Results", CIoT 2018, Paris, France, Jul. 2018.

  46. 46.A. Bezzina, M. Ayari, R. Langar, and L. Saidane, "Joint Optimization of Resource and Power Allocation in Heterogeneous Urban Dense Cellular Networks", IWCMC 2018, Limassol, Cyprus, Jun. 2018.

  47. 47.S. Matoussi, I. Fajjari, S. Costanzo, N. Aitsaadi, and R. Langar, "A User Centric Virtual Network Function Orchestration for Agile 5G Cloud-RAN", IEEE ICC 2018, Kansas City, MO, USA, May 2018.

  48. 48.N. Salhab, S. Elfalou, S. Elayoubi, R. Rahim, and R. Langar, "Optimization of the Implementation of Network Slicing in 5G RAN", IEEE MENACOMM 2018, Jounieh, Lebanon, Apr. 2018.

  49. 49.S. Costanzo, I. Fajjari, N. Aitsaadi, and R. Langar, "A Network Slicing Prototype for a Flexible Cloud Radio Access Network", IEEE CCNC 2018, Las Vegas, USA, Jan. 2018.

  50. 50.S. Costanzo, I. Fajjari, N. Aitsaadi, and R. Langar, "DEMO: SDN-based Network Slicing in C-RAN", IEEE CCNC 2018, Las Vegas, USA, Jan. 2018. Demo paper.

  51. 51.A. Zanni, Se-Young Yu, P. Bellavista, R. Langar, and S. Secci, "Automated Selection of Offloadable Tasks for Mobile Computation Offloading in Edge Computing", IEEE/IFIP CNSM 2017, Tokyo, Japan, Nov. 2017.

  52. 52.S. Yu, X. Wang, and R. Langar, "Computation Offloading for Mobile Edge Computing: A Deep Learning Approach", IEEE PIMRC 2017, Montreal, QC, Canada, Oct. 2017.

  53. 53.Y. Lyazidi, L. Giupponi, J. Mangues-Bafalluy, N. Aitsaadi, and R. Langar, "A Novel Optimization Framework for C-RAN BBU Selection based on Resiliency and Price", IEEE VTC-Fall 2017, Toronto, ON, Canada, Sept. 2017.

  54. 54.A. Zanni, Se-Young Yu, S. Secci, R. Langar, P. Bellavista, and D. Macedo, "Automated Offloading of Android Applications for Computation/Energy-usage Optimizations", IEEE INFOCOM 2017, Atlanta, USA, May 2017. Demo paper.

  55. 55.Y. Lyazidi, N. Aitsaadi, and R. Langar, "Resource Allocation and Admission Control in OFDMA-based Cloud-RAN", IEEE GLOBECOM 2016, Washington, DC, USA, Dec. 2016

  56. 56.S. Yu, R. Langar, and X. Wang, "A D2D-Multicast Based Computation Offloading Framework for Mobile Edge Computing", IEEE GLOBECOM 2016, Washington, DC, USA, Dec. 2016.

  57. 57.A. Ben Cheikh, M. Ayari, R. Langar, and L. Saidane, "OHDP: Optimized Handover with Direction Prediction Scheme Using Linear Regression for Femtocell Networks", IFIP PEMWN 2016, Paris, France, Nov. 2016 (Best Paper Award).

  58. 58.N. Mejri, M. Ayari, R. Langar, and L. Saidane, "CON2PAS: A Constrained Congestion Game for Parking Space Assignment", IFIP PEMWN 2016, Paris, France, Nov. 2016.

  59. 59.A. Bezzina, M. Ayari, R. Langar, and L. Saidane, "A Fair Cluster-based Resource and Power Allocation Scheme for two-tier Femtocell Networks", GIIS 2016, Porto, Portugal, Oct. 2016.

  60. 60.N. Mejri, M. Ayari, R. Langar, and L. Saidane, "Reservation-based Multi-Objective Smart Parking Approach for Smart Cities", IEEE ISC2 2016, Trento, Italy, Sept. 2016.

  61. 61.A. Ben Cheikh, M. Ayari, R. Langar, and L. Saidane, "OHMP-CAC: Optimized Handoff scheme based on Mobility Prediction and QoS Constraints for Femtocell Networks", IWCMC 2016, Paphos, Cyprus, Sept. 2016.

  62. 62.Y. Lyazidi, N. Aitsaadi, and R. Langar, "Dynamic Resource Allocation in Cloud-RAN with Real-Time RRH-BBU Assignment", IEEE ICC 2016, Kuala Lumpur, Malaysia, May 2016. (Student Travel Grant Award)

  63. 63.M. Hajir, R. Langar, and F. Gagnon, "Solidarity-based Cooperative Games for Resource allocation with Macro-users Protection in HetNets", IEEE ICC 2016, Kuala Lumpur, Malaysia, May 2016.

  64. 64.S. Yu, R. Langar, W. Li, and X. Chen, "Coalition-based Energy Efficient Offloading Strategy for Immersive Collaborative Applications in Femto-Cloud", IEEE ICC 2016, Kuala Lumpur, Malaysia, May 2016.

  65. 65.A. Ben Cheikh, M. Ayari, R. Langar, G. Pujolle, and L. Saidane, "Optimized Handoff with Mobility Prediction Scheme Using HMM for Femtocell Networks", IEEE ICC 2015, London, UK, Jun. 2015.

  66. 66.Z. Khalfallah, I. Fajjari, N. Aitsaadi, R. Langar, and G. Pujolle, “2D-UBDA: A Novel 2-Dimensional Underwater WSN Barrier Deployment Algorithm”, IFIP Networking 2015, Toulouse, France, May 2015.

  67. 67.Z. Khalfallah, I. Fajjari, N. Aitsaadi, R. Langar, and G. Pujolle, “Overview: Communication Carriers for Underwater Sensor Networks”, NOF 2014, Paris, France, Dec. 2014.

  68. 68.A. Amokrane, M.F. Zhani, Q. Zhang, R. Langar, R. Boutaba, and G. Pujolle, “On Satisfying Green SLAs in Distributed Clouds”, IEEE/IFIP CNSM 2014, Rio de Janeiro, Brazil, Nov. 2014 (Best Paper Award).

  69. 69.A. Bezzina, M. Ayari, R. Langar, G. Pujolle, and L. Saidane, "Interference-aware Game-based Channel Assignment Algorithm for MR-MC WMNs", IEEE/IFIP Wireless Days 2014, Rio de Janeiro, Brazil, Nov. 2014 (Top 3 Paper Award).

  70. 70.N. Mejri, M. Ayari, R. Langar, F. Kamoun, G. Pujolle, and L. Saidane, "Cooperation Versus Competition Towards An Efficient Parking Assignment Solution", IEEE ICC 2014, Sydney, Australia, Jun. 2014.

  71. 71.A. Amokrane, R. Langar, R. Boutaba, and G. Pujolle, “Online Flow-based Energy Efficient Management in Wireless Mesh Networks”, IEEE GLOBECOM 2013, Atlanta, GA, USA, Dec. 2013.

  72. 72.Z. Khalfallah, I. Fajjari, N. Aitsaadi, R. Langar and G. Pujolle, “A New WSN Deployment Algorithm for Water Pollution Monitoring in Amazon Rainforest Rivers”, IEEE GLOBECOM 2013, Atlanta, GA, USA, Dec. 2013.

  73. 73.A. Ben Cheikh, M. Ayari, R. Langar, G. Pujolle, and L. Saidane, " Optimized Handover Algorithm for Two-tier Macro-Femto Cellular LTE Networks", IEEE WiMob 2013, Lyon, France, Oct. 2013.

  74. 74.M. Hkimi, R. Langar, S. Secci, R. Boutaba, and G. Pujolle, "Demands Rescaling for Resource and Power Allocation in Cooperative Femtocell Networks", IEEE ICC 2013, Budapest, Hungary, Jun. 2013.

  75. 75.A. Hatoum, R. Langar, N. Aitsaadi, R. Boutaba, and G. Pujolle, "QoS-based Power Control and Resource Allocation in OFDMA Femtocell Networks", IEEE GLOBECOM 2012, Anaheim, USA, Dec. 2012.

  76. 76.S. Hoteit, S. Secci, R. Langar, G. Pujolle, and R. Boutaba, "A Bankruptcy Game Approach for Resource Allocation in Cooperative Femtocell Networks", IEEE GLOBECOM 2012, Anaheim, USA, Dec. 2012. (Student Travel Grant Award)

  77. 77.A. Amokrane, R. Langar, R. Boutaba, and G. Pujolle, "A Green Framework for Energy Efficient Management in TDMA-based Wireless Mesh Networks", IEEE/ACM CNSM 2012, Las Vegas, USA, Oct. 2012. (Student Travel Grant Award).

  78. 78.A. Bezzina, M. Ayari, R. Langar, and F. Kamoun, “An Interference-Aware Routing Metric for Multi-Radio Multi-Channel Wireless Mesh Networks”, IEEE WiMob 2012, Barcelona, Spain, Oct. 2012.

  79. 79. S. Hoteit, S. Secci, R. Langar, and G. Pujolle, “Strategic Subchannel Resource Allocation for Cooperative OFDMA Wireless Mesh Networks”, IEEE ICC 2012, Ottawa, Canada, Jun. 2012. (Student Travel Grant Award).

  80. 80. A. Hatoum, R. Langar, N. Aitsaadi, and G. Pujolle, "Q-FCRA: QoS-based OFDMA Femtocell Resource Allocation Algorithm", IEEE ICC 2012, Ottawa, Canada, Jun. 2012.

  81. 81. H. Saleet, S. Naik, R. Langar, and R. Boutaba, "Performance Modeling of Routing Dependability in Home Networks", IEEE GLOBECOM 2011, Houston, Texas, USA, Dec. 2011. (Nominated for the Best Paper Award).

  82. 82. S. Moad, M. Adul Azim, N. Bouabdallah, and R. Langar, "CDEEC: A Connectivity Degree-Based Energy Efficient Clustering Protocol for Wireless Sensor Networks", IEEE/IFIP Wireless Days 2011, Niagara Falls, Ontario, Canada, Oct. 2011.

  83. 83. A. Hatoum, N. Aitsaadi, R. Langar, R. Boutaba, and G. Pujolle, “FCRA: Femtocell Cluster-based Resource Allocation Scheme for OFDMA Networks”, IEEE ICC 2011, Kyoto, Japan, Jun. 2011.

  84. 84. S. Moad, M. Rivero, N. Bouabdallah, and R. Langar, “CC_SCR: A Compression Cluster-based Scheme in a Spatial Correlated Region for Wireless Sensor Networks”, IEEE ICC 2011, Kyoto, Japan, Jun. 2011.

  85. 85. R. Langar, S. Njima, N. Bouabdallah, R. Boutaba, and G. Pujolle, “Towards Efficient Use of Radio Resources in Single Channel Wireless Mesh Networks”, IEEE GLOBECOM 2010, Miami, FL, USA, Dec. 2010.

  86. 86. H. Saleet, R. Langar, S. Naik, and R. Boutaba, “QoS Support in Delay Tolerant Vehicular Ad Hoc Networks”, IEEE GLOBECOM 2010, Miami, FL, USA, Dec. 2010.

  87. 87. W, Berrayana, H. Youssef, R. Langar, and G. Pujolle, “Autonomic position-based QoS routing protocol for mobile wireless networks with a cross-layer architecture”, MED-HOC-NET 2010, Juan-les-pins, Jun. 2010.

  88. 88. Z. Movahedi, R. Langar, and G. Pujolle, “A Comprehensive Overview of Vehicular Ad hoc Network Evaluation Alternatives, APSITT 2010, Kuching, Malaysia, Jun. 2010.

  89. 89. R. Langar, N. Bouabdallah, R. Boutaba, and G. Pujolle, “Interferer Link-Aware Routing in Wireless Mesh Networks”, IEEE ICC 2010, Cape Town, South Africa, May 2010.

  90. 90. A. Karouia, R. Langar, M-T Nguyen, and G. Pujolle, “SOA-based Approach for the design of the Future Internet”, CNSR 2010, Montreal, Canada, May 2010.

  91. 91. A. Karouia, R. Langar, and G. Pujolle, “SOA-based Approach for the Future Internet”, IEEE INFOCOM 2010 – Student Workshop, San Diego, CA, USA, Mar. 2010.

  92. 92. H. Saleet, R. Langar, O. Basir, and R. Boutaba, “Adaptive Message Routing with QoS support in Vehicular Ad hoc Networks”, IEEE GLOBECOM 2009, Honolulu, Hawaii, USA, Dec. 2009.

  93. 93. W, Berrayana, H. Youssef, R. Langar, and G. Pujolle, “QoS-PAR: a routing protocol for wireless ad hoc networks using a cross-layer autonomic architecture”, GIIS 2009, Hammamet, Tunisia, Jun. 2009.

  94. 94. H. Saleet, R. Langar, O. Basir, and R. Boutaba, “A Distributed Approach for Location Lookup in Vehicular Ad hoc Networks”, IEEE ICC 2009, Dresden, Germany, Jun. 2009.

  95. 95. H. Saleet, R. Langar, O. Basir, and R. Boutaba, “Proposal and Analysis of Region-based Location Service Management Protocol for VANETs”, IEEE GLOBECOM 2008, New Orleans, LA, USA, Dec. 2008.

  96. 96. R. Langar, N. Bouabdallah, and R. Boutaba, “Adaptive Mobility Management for IP/MPLS-Based Wireless Networks: a Proposal and Analysis”, IEEE GLOBECOM 2007, Washington, USA, Nov. 2007.

  97. 97. R. Langar, N. Bouabdallah, S. Tohme, and R. Boutaba, “Mobility Modeling and Handoff Analysis for IP/MPLS-Based Cellular Networks”, IEEE GLOBECOM 2006, San Francisco, USA, Nov. 2006.

  98. 98. R. Langar, N. Bouabdallah, and S. Tohme, “Handoff Management Schemes and Performance Analysis for IP/MPLS-Based Cellular Networks”, IEEE PIMRC 2006, Helsinki, Finland, Sept. 2006.

  99. 99. R. Langar, N. Bouabdallah, and S. Tohme, “A Mobility Tracking Model and Handoff Performance Analysis for Wireless MPLS Networks”, IEEE  ICC 2006, Istambul, Turkey, Jun. 2006.

  100. 100. R. Langar, N. Bouabdallah, and S. Tohme, “Handoff Support for Mobility in Future Wireless MPLS Networks: a .Proposal and Analysis”, IEEE WCNC 2006, Las Vegas, Nevada, USA, Apr. 2006.

  101. 101. R. Langar, S. Tohme, N. Bouabdallah, “An Approach for Mobility Modeling – Towards an Efficient Mobility Management Support in Future Wireless Networks”, IEEE/IFIP NOMS 2006, Vancouver, CA, Apr. 2006.

  102. 102. R. Langar, S. Tohme, N. Bouabdallah, and G. Pujolle, “On the Analysis of Micro Mobile MPLS Access Networks: The Fast Handoff and the Forwarding Chain Mechanisms”, IEEE CCNC 2006, Las Vegas, USA, Jan. 2006. (Student Travel Grant Award).

  103. 103. M. Abdennebi, R. Langar and S. Tohme, “CIPMAN: Combining Cellular IP and Mobile Ad Hoc Networks in a Hop by Hop All Radio Access Network”, IEEE ICON 2005, Kuala Lumpur, Malaysia, Nov. 2005.

  104. 104. R. Langar, S. Tohme, N. Bouabdallah, and G. Pujolle, “Performance Analysis of Micro Mobile MPLS for Future Wireless Networks”, IEEE PIMRC 2005, Berlin, Germany, Sept. 2005.

  105. 105. R. Langar, S. Tohme, and G. Le Grand, “Micro Mobile MPLS: A New Scheme for Micro-Mobility Management in 3G All-IP Networks”, IEEE ISCC 2005, Cartagena, Spain, Jun. 2005.

  106. 106. R. Langar, G. Le Grand, S. Tohme, “Fast Handoff process in Micro Mobile MPLS protocol for Micro-Mobility Management in Next Generation Networks”, IEEE/IFIP WONS 2005, Switzerland, Jan. 2005.

  107. 107. R. Langar, G. Le Grand, and S. Tohme, “Micro Mobile MPLS: A Solution for Micro-Mobility Management in Next Generation Networks”, IEEE MASCOTS 2004, Volendam, the Netherlands, Oct. 2004.

International Conference Papers

Journal Articles

  1. 1.F. Alalyan, M. Aouad, W. Jaafar, and R. Langar, "Secure Distributed Federated Learning for Cyberattacks Detection in B5G Open Radio Access Networks", IEEE Open Journal of the Communications Society, in press, Dec. 2024.

  2. 2.M. Narouwa, L. Mendiboure, H. Badis, S. Maaloul, D.M. Molla, M. Berbineau, and R. Langar, “Enabling Network Technologies For Flexible Railway Connectivity”, IEEE Access Journal, vol. 12, pp. 151532-151553, Oct. 2024.

  3. 3.S. Matoussi, I. Fajjari, N. Aitsaadi, and R. Langar, "User-centric Slice Allocation Scheme in 5G Networks and Beyond", IEEE Transactions on Network and Service Management, vol. 20, no. 4, pp. 4268-4282, Dec. 2023.

  4. 4.A. Boualouache, S. Sennouci, B. Brik, S. Hossain, Q. Tang, A. Korba, R. Langar, S. Cherrier, B. Bousalem, V. F. Silva, Y. Ghamri-Doudane, and T. Engel, "Sécurité des communications 5G véhiculaires (5G-V2X) dans un contexte transfrontalier", REE Magazine,  no. 2, Jun. 2023.

  5. 5.A. Boualouache, B. Brik, Q. Tang, A. Korba, S. Cherrier, S. Senouci, E. Pardo, Y. Ghamri-Doudane, R. Langar, and T. Engel, "5G Vehicle-to-Everything at the Cross-Borders: Security Challenges and Opportunities", IEEE Internet of Things Magazine,  vol. 6, no. 1, pp. 114-119, Mar. 2023.

  6. 6.M.O. Nait Belaid, V. Audebert, B. Deneuville, and R. Langar, "Defining an MV/LV Protection, Automation, and Control system based on 5G network", CIGRE Science & Engineering, no. 27, Jan. 2023.

  7. 7.H. Bouzidi, A. Outtagarts, R. Langar, and R. Boutaba, "Deep Reinforcement Learning Approach for Dynamic Clustering and Placement in Software Defined Networks", ELSEVIER Computer Networks, vol. 207, Apr. 2022.

  8. 8.J. Alqahtani, B. Hamdaoui, and R. Langar, "Emie: Scalable Load-Balanced Multicast Source Routing for Cloud Data Centers", IEEE Access Journal, vol. 9, pp. 168816-168830, Dec. 2021.

  9. 9.H. Bouzidi, A. Outtagarts, R. Langar, and R. Boutaba, "Deep Q-Network and Traffic Prediction based Routing Optimization in Software Defined Networks", ELSEVIER Journal of Network and Computer Application (JNCA), vol. 192, Oct. 2021.

  10. 10.N. Salhab, R. Langar, R. Rahim, S. Cherrier, and A. Outtagarts, “5G Autonomous Network Slicing Prototype Using Machine Learning Based Forecasting for Radio Resources”, IEEE Communications Magazine, Network Softwarization and Management Series, vol. 59, no. 6, pp. 73-79, Jun. 2021.

  11. 11.N. Salhab, R. Langar, and R. Rahim, "5G Network Slices Resource Orchestration using Machine-Learning Techniques", ELSEVIER Computer Networks, vol. 188, Apr. 2021.

  12. 12.N. Salhab, R. Rahim, and R. Langar, "Optimization of virtualization cost, processing power and network load of 5G Software-defined Data Centers", IEEE Transactions on Network and Service Management, vol. 17, no. 3, pp. 1542-1553, Sept. 2020.

  13. 13.S. Matoussi, I. Fajjari, S. Costanzo, N. Aitsaadi, and R. Langar, "5G-RAN: Functional Split Orchestration Optimization", IEEE Journal of Selected Areas in Communications (JSAC), vol. 38, no. 7, pp. 1448-1463, Jul. 2020.

  14. 14.S. Yu, B. Dab, Z. Movahedi, R. Langar, and L. Wang, “A Socially-Aware Hybrid Computation Offloading Framework for Multi-access Edge Computing”, IEEE Transactions on Mobile Computing, vol. 19, no. 6, pp. 1247-1259, Jun. 2020.

  15. 15.J. Leal, Se-Young Yu, D. Macedo, J. Nogueira, R. Langar, and S. Secci, “ULOOF: a User Level Online Offloading Framework for Mobile Edge Computing”, IEEE Transactions on Mobile Computing, vol. 17, no. 11, pp. 2660-2674, Nov. 2018.

  16. 16.S. Yu, R. Langar, X. Fu, L. Wang, and Z. Han, “Computation Offloading with Data Caching Enhancement for Mobile Edge Computing”, IEEE Transactions on Vehicular Technology, vol. 67, no. 11, pp. 11098-11112, Nov. 2018.

  17. 17.Y. Lyazidi, N. Aitsaadi, and R. Langar, “A dynamic resource allocation framework in LTE downlink for Cloud-Radio Access Networks”, ELSEVIER Computer Networks, vol. 140, pp. 101-111, Jul. 2018.

  18. 18.F. Dabaghi, Z. Movahedi, and R. Langar, “A survey on green routing protocols using sleep-scheduling in wired networks”, ELSEVIER Journal of Network and Computer Application, vol. 77, no. 1, pp. 106-122, Jan. 2017.

  19. 19.M. Hajir, R. Langar, and F. Gagnon, “Coalitional Games for joint Co-tier and Cross-tier Cooperative Spectrum Sharing in Dense Heterogeneous Networks”, IEEE Access Journal, vol. 4, pp. 2450-2464, May 2016.

  20. 20.R. Langar, B. Hamdaoui, M. Gerla, and R. Boutaba, “The Plethora of Research in Vehicular Cloud Networking”, Guest Editorial of ELSEVIER Vehicular Communications Journal, vol. 4, pp. 38, Apr. 2016.

  21. 21.A. Amokrane, R. Langar, R. Boutaba, and G. Pujolle, “Flow-based Management for Energy Efficient Campus Networks”, IEEE Transactions on Network and Service Management, vol. 12, no. 4, pp. 565 – 579, Dec. 2015.

  22. 22.A. Amokrane, R. Langar, M.F. Zhani, R. Boutaba, and G. Pujolle, “GreenSlater: On satisfying Green SLAs in Distributed Clouds”, IEEE Transactions on Network and Service Management, vol. 12, no. 3, pp. 363 – 376, Sept. 2015.

  23. 23.R. Langar, S. Secci, R. Boutaba, and G. Pujolle, “An Operations Research Game Approach for Resource and Power Allocation in Cooperative Femtocell Networks”, IEEE Transactions on Mobile Computing, vol. 14, no. 4, pp. 675 – 687, Apr. 2015.

  24. 24.A. Hatoum, R. Langar, N. Aitsaadi, R. Boutaba, and G. Pujolle, "Cluster-based Resource Management in OFDMA Femtocell Networks with QoS Guarantees", IEEE Transactions on Vehicular Technology, vol. 63, no. 5, pp. 2378 – 2391, Jun. 2014.

  25. 25.A. Amokrane, R. Langar, R. Boutaba, and G. Pujolle, “Energy Efficient Management Framework for Multihop TDMA-based Wireless Networks”, ELSEVIER Computer Networks, vol. 62, no. 4, pp. 29 – 42, Apr. 2014.

  26. 26.S. Hoteit, S. Secci, R. Langar, and G. Pujolle, "A Nucleolus-based Approach for Resource Allocation in OFDMA Wireless Mesh Networks", IEEE Transactions on Mobile Computing, vol. 12, no. 11, pp. 2145 – 2154, Nov. 2013.

  27. 27.A. Amokrane, M.F. Zhani, R. Langar, R. Boutaba, and G. Pujolle, "Greenhead: Virtual Data Center Embedding Across Distributed Infrastructures”, IEEE Transactions on Cloud Computing, vol. 1, no. 1, pp. 36 – 49, Sept. 2013.

  28. 28.Z. Movahedi, M. Ayari, R. Langar, and G. Pujolle, "A survey of autonomic network architectures and evaluation criteria", IEEE Communications Surveys and Tutorials, vol. 14, no. 2, pp. 464 – 490, May 2012.

  29. 29.H. Saleet, R. Langar, S. Naik, and R. Boutaba, "Intersection-based geographical routing protocol for VANETs : a Proposal and Analysis", IEEE Transactions on Vehicular Technology, vol 60, no. 9, pp. 4560-4574, Nov. 2011.

  30. 30.N. Bouabdallah, R. Langar, and R. Boutaba, “Design and Analysis of Mobility-Aware Clustering Algorithms for Wireless Mesh Networks”, IEEE/ACM Transactions on Networking, vol 18, no. 6, pp. 1677 – 1690, Dec. 2010.

  31. 31.H. Saleet, O. Basir, R. Langar, and R. Boutaba, "Region-Based Location Service Management Protocols for VANETs", IEEE Transactions on Vehicular Technology, vol. 59, no. 2, pp. 917 – 931, Feb. 2010.

  32. 32. R. Langar, N. Bouabdallah, B. Sericola, and R. Boutaba, “Proposal and Analysis of Adaptive MPLS-enabled Mobility Tracking in IP-Based Mobile Networks”, IEEE Transactions on Wireless Communications, vol. 8, no. 7, pp. 3608 – 3619, Jul. 2009.

  33. 33. R. Langar, N. Bouabdallah, and R. Boutaba, “Mobility-Aware Clustering Algorithms with Interference Constraints in Wireless Mesh Networks”, ELSEVIER Computer Networks, vol. 53, no. 1, pp. 25 – 44, Jan. 2009.

  34. 34. R. Langar, N. Bouabdallah, and R. Boutaba, “A Comprehensive Analysis of Mobility Management in MPLS-Based Wireless Access Networks”, IEEE/ACM Transactions on Networking, vol.16, no. 4, pp. 918 – 931, Aug. 2008.

  35. 35. R. Langar, N. Bouabdallah, and S. Tohme, “On the Analysis of Mobility Mechanisms in Micro Mobile MPLS Access Networks”, Journal of Communications, vol. 1, no. 6, pp. 18 – 27, Sept. 2006.

  36. 36. R. Langar, S. Tohme, and N. Bouabdallah, “Mobility management support and performance analysis for wireless MPLS networks”, ACM International Journal of Network Management, vol. 16, no. 4,  pp. 279 –   294, Jul. 2006.

Invited Talks/Tutorials

  1. -R. Langar, “Toward Secure and Sustainable O-RAN networks”, Tutorial at IEEE GIIS 2025, Dubai, UAE, Feb. 25th 2025.

  2. -S. Hamouda, R. Langar, and R. Boutaba, “Virtualization in Future Wireless Networks: Why is it still hard to achieve?”, Tutorial at IEEE GLOBECOM 2024, Cape Town, South Africa, Dec. 12th 2024.

  3. -Deep Learning based approach for DDoS Slice attack detection and mitigation in 5G/IoT Networks, ETS-Montréal, Canada, Jan. 28th 2022 (remote).

  4. -Machine Learning based resource management in 5G networks, Federal University of Rio de Janeiro (UFRJ), Brazil, GTA research group, Jun. 26th 2020 (remote).

  5. -Machine Learning based resource orchestration and Optimal functional split for 5G network slices, ANR Lab-Com AIDY-F2N (Artificial Intelligence and Dynamic Modeling tools for Future Flexible Networks), Telecom SudParis, Mar. 25th 2020.

  6. -Machine Learning based resource orchestration and Optimal functional split for 5G network slices, Labex Bezout, University Gustave Eiffel, Jan. 10th 2020.

  7. -Dynamic Resource Allocation and Network Functional Splitting in 5G Cloud-RANs, Univ. Waterloo, ON, Canada, June 20th 2018.

  8. -Dynamic Resource Allocation and Network Functional Splitting in 5G Cloud-RANs, Nanyang Technological University (NTU) Singapore, Dec. 7th 2017.

  9. -Dynamic Resource Allocation and Network Optimization in Cloud-RANs, 6th IFIP PEMWN’17 conference, Paris, France, Nov., 28th 2017.

  10. -Self-Organizing Networks: Distributed-RANs vs. Cloud-RANs, IFIP NOF’16 conference, Buzios, Rio de Janeiro, Brazil, Nov., 18th 2016.

  11. -Cloud-RAN networks: challenges and solutions, NGN’16 workshop, Beirut, Lebanon, June, 2nd 2016.

  12. -Small-cell networks: resource management and energy efficiency issues, UFMG, Belo Horizonte, Brazil, August, 25th 2015.

  13. -Resource management and energy efficiency in wireless clouds, LIF Marseille, France, May, 4th 2015.

  14. -Resource management in Cloud Radio Access Networks, BUPT, China, April, 16th 2014.

  15. -Mobility and resource management in Urban Wireless Networks, Univ. Waterloo, ON, Canada, November, 11th 2013.

  16. -Radio resource management in small-cell networks, MED-HOC-NET, Corsica, June, 26th 2013.

  17. -Radio resource management in small-cell networks, POSTECH, South Korea, June, 6th 2013.

  18. -Allocation stratégique des ressources dans les réseaux OFDMA femtocell, 25eme Congrès DNAC, Paris, France, November, 18th 2011.

  19. -Proposition et analyse d’un protocole de gestion de localisation dans les réseaux véhiculaires, Groupe de Travail Automatique Réseaux de Communication (GT ARC), Vitry sur Seine, March, 31th 2009.

  20. -Towards new approaches for mobility management in wireless cellular and mesh networks, University of Laval, Québec, Canada, November, 16th 2007.

  1. -A network-slicing prototype for a flexible 5G infrastructure has been developed and integrated with NOKIA Cloud platform supporting IoT slices. More information available at SDR-Lab.

  2. -An online mobile computation-offloading platform has been developed for optimizing Android applications in terms of energy consumption and delay. More information available at ULOOF platform.

Software/Platform Development