1 citations · 2 across the 5 of their papers we have counts for
7 papers
CR-Enabled NOMA Integrated Non-Terrestrial IoT Networks with Transmissive RIS
Wali Ullah Khan, Zain Ali, Asad Mahmood +3
This work proposes a T-RIS-equipped LEO satellite communication in cognitive radio-enabled integrated NTNs. In the proposed system, a GEO satellite operates as a primary network, a…
Reconfigurable Intelligent Surfaces for 6G Non-Terrestrial Networks: Assisting Connectivity from the Sky
Wali Ullah Khan, Asad Mahmood, Chandan Kumar Sheemar +3
This paper studies the potential of RIS-integrated NTNs to revolutionize the next-generation connectivity. First, it discusses the fundamentals of RIS technology. Secondly, it delv…
Deep Reinforcement Learning for Backscatter Communications: Augmenting Intelligence in Future Internet of Things
Wali Ullah Khan, Eva Lagunas, Zain Ali +5
Backscatter communication (BC) technology offers sustainable solutions for next-generation Internet-of-Things (IoT) networks, where devices can transmit data by reflecting and adju…
Reconfigurable Intelligent Surfaces Enhanced NOMA D2D Communications Underlaying UAV Networks
Wali Ullah Khan, Eva Lagunas, Asad Mahmood +3
Device-to-device (D2D) communications offers high spectral efficiency, low energy consumption and transmission latency. However, one of the main limitations of D2D communications i…
Joint Optimization of 3D Placement and Radio Resource Allocation for per-UAV Sum Rate Maximization
Asad Mahmood, Thang X. Vu, Symeon Chatzinotas +1
Unmanned aerial vehicles (UAV) have emerged as a practical solution that provides on-demand services to users in areas where the terrestrial network is non-existent or temporarily…
Multi-Objective Optimization for 3D Placement and Resource Allocation in OFDMA-based Multi-UAV Networks
Asad Mahmood, Thang X. Vu, Shree Krishna Sharma +2
This work considers the orthogonal frequency division multiple access (OFDMA) technology that enables multiple unmanned aerial vehicles (multi-UAV) communication systems to provide…