The rapid expansion of the low-altitude economy (LAE), driven by the increasing deployment of large-scale drone systems, has significantly heightened the demand for flexible, low-latency, and highly reliable connectivity in rapidly changing environments. To this end, low-altitude wireless networks (LAWNs) have emerged...
Hai-Jia Jin, Xiao-Qi Zhang, Wei-Jie Yuan et al.· IEEE Transactions on Cogniti...· 0 citations
High-Altitude Platform Stations (HAPS) operate in the lower stratosphere at 17-27 km, between satellites and Unmanned Aerial Vehicles (UAVs). For this third tier the architectural case has long outpaced the flight evidence, but a wave of 2020-2026 stratospheric flights now permits a direct comparison. We evaluate HAPS...
This paper presents a real-time orthogonal frequency-division multiplexing (OFDM) radar embedded in the OpenAirInterface (OAI) 5G base-station process. The radar removes communication symbols by regularized element-wise division and performs range-Doppler processing and ordered-statistic constant-false-alarm-rate detec...
Karim Saifullin, Sajid Ahmed, M. Alouini· 0 citations
High-altitude platform stations (HAPSs) are expected to coexist with terrestrial networks (TNs) to provide seamless wide-area wireless connectivity in future sixth-generation (6G) systems. However, the strong line-of-sight (LoS) propagation of HAPS links introduces severe cross-tier interference under spectrum sharing....
The proposed approach introduces an optimally regularized least-squares formulation that balances training-based information and blind subspace structure and derive a closed-form characterization of the resulting channel mean-squared error and obtain an analytically tractable design of the optimal regularization parame...
Underwater Optical Wireless Communication (UOWC) has emerged as a promising technology for high-speed underwater data transmission, offering significantly higher bandwidth and lower latency compared to acoustic and Radio Frequency (RF) technologies. However, the underwater medium introduces severe impairments that degr...
Shaymaa Mahmoud, A. Purwita, M. Alouini· 0 citations
High altitude platform stations (HAPSs) are becoming a key component of future non-terrestrial networks (NTNs). HAPSs can serve a larger area than uncrewed aerial vehicles (UAVs) and offer lower propagation latency, maintenance expense, and energy costs than satellites. A major application of HAPSs is to serve the area...
Hao Lin, Mustafa A. Kishk, M. Alouini· IEEE Transactions on Wireles...· 0 citations
Solar-powered high-altitude platform stations (HAPSs) provide a promising platform for integrated sensing and communication (ISAC) owing to their wide-area coverage and long-endurance operation. This paper proposes a solar-powered HAPS-enabled ISAC framework for sustainable day-night operation, where a figure-eight loi...
An integrated architecture spanning multi-plane connectivity, payload functional splits, and a cloud-edge-HAP space continuum with hierarchical data, control, computing, and storage loops is developed, and an emergency-response case study demonstrates that joint S^2C^2I orchestration substantially improves conjunctive...
Free-space optical (FSO) communication has emerged as a promising technology, but its performance is highly dependent on line-of-sight (LOS) conditions. To address this limitation, we propose a multistage optical intelligent reflecting surface (OIRS)-assisted FSO communication system, which utilizes multiple OIRS nodes...
Shunyuan Shang, Emna Zedini, A. Kammoun et al.· IEEE Transactions on Wireles...· 0 citations
The vision of coordinated space-based WPT, where multiple satellites jointly serve networks of ground devices and meetasurfaces on satellite apertures and ground networks to boost energy conversion efficiency, scalability, and beam management is introduced.
O. M. Rosabal, Amirhossein Azarbahram, Mateen Ashraf et al.· IEEE Internet of Things Maga...· 0 citations
This work introduces a HAP-native Agentic AI framework and identifies trustworthy control, collaborative multi-HAP orchestration, and digital-twin-assisted lifelong adaptation as key steps toward deployable, sustainable, and resilient SAGIN intelligence.
Hao-Xiang Luo, Bang Huang, M. Alouini· 1 citation
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