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Energy Efficiency Optimization for Backscatter Enhanced NOMA Cooperative V2X Communications under Imperfect CSI


Feb 16, 2022
Wali Ullah Khan, Muhammad Ali Jamshed, Eva Lagunas, Symeon Chatzinotas, Xingwang Li, Bjorn Ottersten


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Backscatter-Aided NOMA V2X Communication under Channel Estimation Errors


Feb 03, 2022
Wali Ullah Khan, Muhammad Ali Jamshed, Asad Mahmood, Eva Lagunas, Symeon Chatzinotas, Bjorn Ottersten


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When RIS Meets GEO Satellite Communications: A New Optimization Framework in 6G


Feb 01, 2022
Wali Ullah Khan, Eva Lagunas, Asad Mahmood, Symeon Chatzinotas, Bjorn Ottersten

* 6, 5, IEEE ICC 2022 

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Joint Optimization of Beam-Hopping Design and NOMA-Assisted Transmission for Flexible Satellite Systems


Oct 13, 2021
Anyue Wang, Lei Lei, Eva Lagunas, Ana I. Perez-Neira, Symeon Chatzinotas, Bjorn Ottersten


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Evolution of Non-Terrestrial Networks From 5G to 6G: A Survey


Jul 14, 2021
M. Mahdi Azari, Sourabh Solanki, Symeon Chatzinotas, Oltjon Kodheli, Hazem Sallouha, Achiel Colpaert, Jesus Fabian Mendoza Montoya, Sofie Pollin, Alireza Haqiqatnejad, Arsham Mostaani, Eva Lagunas, Bjorn Ottersten


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FedFog: Network-Aware Optimization of Federated Learning over Wireless Fog-Cloud Systems


Jul 04, 2021
Van-Dinh Nguyen, Symeon Chatzinotas, Bjorn Ottersten, Trung Q. Duong

* 30 pages, 12 figures. This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible 

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LEO Satellite Constellations for 5G and Beyond: How Will They Reshape Vertical Domains?


Jun 18, 2021
Shicong Liu, Zhen Gao, Yongpeng Wu, Derrick Wing Kwan Ng, Xiqi Gao, Kai-Kit Wong, Symeon Chatzinotas, Bjorn Ottersten

* 4 figures, 1 table, accepted by Communications Magazine 

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SHARP 2020: The 1st Shape Recovery from Partial Textured 3D Scans Challenge Results


Oct 26, 2020
Alexandre Saint, Anis Kacem, Kseniya Cherenkova, Konstantinos Papadopoulos, Julian Chibane, Gerard Pons-Moll, Gleb Gusev, David Fofi, Djamila Aouada, Bjorn Ottersten

* SHARP workshop, ECCV 2020 

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Energy Minimization in UAV-Aided Networks: Actor-Critic Learning for Constrained Scheduling Optimization


Jun 29, 2020
Yaxiong Yuan, Lei Lei, Thang Xuan Vu, Symeon Chatzinotas, Sumei Sun, Bjorn Ottersten

* 12 pages, 11 figures 

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Deep Learning Advances on Different 3D Data Representations: A Survey


Aug 04, 2018
Eman Ahmed, Alexandre Saint, Abd El Rahman Shabayek, Kseniya Cherenkova, Rig Das, Gleb Gusev, Djamila Aouada, Bjorn Ottersten

* 20 pages 

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Ensemble of Example-Dependent Cost-Sensitive Decision Trees


May 18, 2015
Alejandro Correa Bahnsen, Djamila Aouada, Bjorn Ottersten

* 13 pages, 6 figures, Submitted for possible publication 

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