no code implementations • 22 Feb 2021 • Ursula Challita, David Sandberg
Simulation results show that the proposed scheme is able to take actions while accounting for future states instead of being greedy in each subframe.
no code implementations • 21 Feb 2021 • Liyana Adilla binti Burhanuddin, Xiaonan Liu, Yansha Deng, Ursula Challita, Andras Zahemszky
In this paper, we co-design the video resolution, the movement, and the power control of UAV-BS and UAV-UEs to maximize the Quality of Experience (QoE) of real-time video streaming.
no code implementations • 20 Jan 2021 • Woong-Hee Lee, Mustafa Ozger, Ursula Challita, Ki Won Sung
This letter introduces a new denoiser that modifies the structure of denoising autoencoder (DAE), namely noise learning based DAE (nlDAE).
no code implementations • 8 Nov 2019 • Ursula Challita, Henrik A. Ryden, Hugo Tullberg
Artificial intelligence (AI) powered wireless networks promise to revolutionize the conventional operation and structure of current networks from network design to infrastructure management, cost reduction, and user performance improvement.
no code implementations • 2 May 2018 • Aidin Ferdowsi, Ursula Challita, Walid Saad, Narayan B. Mandayam
To this end, in this paper, the state estimation process for monitoring AV dynamics, in presence of CP attacks, is analyzed and a novel adversarial deep reinforcement learning (RL) algorithm is proposed to maximize the robustness of AV dynamics control to CP attacks.
no code implementations • 15 Apr 2018 • Ursula Challita, Aidin Ferdowsi, Mingzhe Chen, Walid Saad
Cellular-connected unmanned aerial vehicles (UAVs) will inevitably be integrated into future cellular networks as new aerial mobile users.
no code implementations • 16 Jan 2018 • Ursula Challita, Walid Saad, Christian Bettstetter
The results also show that the optimal altitude of the UAVs varies based on the ground network density and the UE data rate requirements and plays a vital role in minimizing the interference level on the ground UEs as well as the wireless transmission delay of the UAV.
no code implementations • 12 Dec 2017 • Aidin Ferdowsi, Ursula Challita, Walid Saad
However, realizing the true potential of ITSs requires ultra-low latency and reliable data analytics solutions that can combine, in real-time, a heterogeneous mix of data stemming from the ITS network and its environment.
no code implementations • 9 Oct 2017 • Mingzhe Chen, Ursula Challita, Walid Saad, Changchuan Yin, Mérouane Debbah
Next-generation wireless networks must support ultra-reliable, low-latency communication and intelligently manage a massive number of Internet of Things (IoT) devices in real-time, within a highly dynamic environment.
no code implementations • 22 Feb 2017 • Ursula Challita, Li Dong, Walid Saad
LTE in unlicensed spectrum using licensed assisted access LTE (LTE-LAA) is a promising approach to overcome the wireless spectrum scarcity.