Browsing by Author "Dabiri, Mohammad Taghi"
Now showing items 1-13 of 13
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3D Uplink Channel Modeling of UAV-Based mmWave Fronthaul Links for Future Small Cell Networks
( IEEE , 2023 , Article)In this study, we consider an unmanned aerial vehicle (UAV)-assisted heterogeneous network that is offered as a cost effective and easy to deploy solution to solve the problem related to transferring traffic of distributed ... -
A General Model for Pointing Error of High Frequency Directional Antennas
( IEEE , 2022 , Article)This paper focuses on providing an analytical framework for the quantification and evaluation of the pointing error for a general case at high-frequency millimeter wave (mmWave) and terahertz (THz) communication links. For ... -
Downlink Interference Analysis of UAV-Based mmWave Fronthaul for Small Cell Networks
( IEEE , 2023 , Article)In this paper, an unmanned aerial vehicles (UAV)-based heterogeneous network is studied to solve the problem of transferring massive traffic of distributed small cells to the core network. First, a detailed three-dimensional ... -
Enabling Flexible Arial Backhaul Links for Post Disasters: A Design Using UAV Swarms and Distributed Charging Stations
( IEEE , 2024 , Article)In this article, our target is to design a permanent long backhaul link using unmanned aerial vehicle (UAV) relays and charge stations (CSs) to transfer data from the nearest core network to disaster area (DA). To this ... -
Enabling Long mmWave Aerial Backhaul Links via Fixed-Wing UAVs: Performance and Design
( IEEE , 2023 , Article)We propose a fixed-wing unmanned aerial vehicles (UAV)-based millimeter wave (mmWave) backhaul architecture that is offered as a cost effective and easy to deploy solution, to connect a disaster or remote area to the nearest ... -
Modulating Retroreflector Based Free Space Optical Link for UAV-to-Ground Communications
( IEEE , 2022 , Article)Weight reduction and low power consumption are key requirements in the next generation of unmanned aerial vehicle (UAV) networks. Employing modulating retro-reflector (MRR)-based free space optical (FSO) technology is an ... -
Optimal Trajectory and Positioning of UAVs for Small Cell HetNets: Geometrical Analysis and Reinforcement Learning Approach
( IEEE , 2023 , Article)In this paper, a dynamic unmanned aerial vehicle (UAV)-based heterogeneous network (HetNet) equipped with directional terahertz (THz) antennas is studied to solve the problem of transferring massive traffic of distributed ... -
Performance Analysis of Modulating Retroreflector Array for UAV-Based FSO Links
( IEEE , 2023 , Article)In this work, we investigate the performance of free space optical (FSO) communication systems based on modulating retroreflector (MRR) array. In particular, we first characterize the MRR array-based FSO channel by taking ... -
Performance Analysis of Two-Way Relaying in mmWave-Based Aerial Links
( IEEE , 2024 , Article)Two-Way Relaying (TWR) is an efficient relaying technique that doubles the spectral efficiency as compared to the traditional one-way relaying. As such, it has been nominated as a solution to extend the coverage of links ... -
Pointing Error Modeling of mmWave to THz High-Directional Antenna Arrays
( IEEE , 2022 , Article)This letter focuses on providing an analytical framework for the quantification and evaluation of the pointing error at high-frequency millimeter wave (mmWave) and terahertz (THz) communication links. For this aim, we first ... -
Secrecy Analysis of Directional mmWave UAV-Based Links Under Hovering Fluctuations
( IEEE , 2023 , Article)Recent developments in Unmanned Aerial Vehicles (UAVs) technology have paved the way to their utilization in different fields and applications. Among these applications, UAVs have been widely investigated as a good candidate ... -
THz vs. FSO: An Outage Probability and Channel Capacity Performance Comparison Study
( IEEE , 2023 , Conference)The main subject of this work is to make a detailed comparison between the performance of free-space optical (FSO) and terahertz (THz) links under different conditions. To this end, we first perform a detailed modeling of ... -
UAV Trajectory Optimization for Directional THz Links Using Deep Reinforcement Learning
( IEEE , 2023 , Conference)As an alternative solution for quick disaster recovery of backhaul/fronthaul links, in this paper, a dynamic unmanned aerial vehicles (UAV)-assisted heterogeneous (HetNet) network equipped with directional terahertz (THz) ...
