Multi-Layer Network Formation through HAPS Base Station and Transmissive RIS-Equipped UAV
Faical Khennoufa, Khelil Abdellatif, Halim Yanikomeroglu, Metin, Ozturk, Taissir Elganimi, Ferdi Kara, Khaled Rabie

TL;DR
This paper introduces a multi-layer aerial network architecture combining HAPS and UAVs with transmissive RIS, demonstrating significant performance improvements in sum rate and energy efficiency over various benchmarks.
Contribution
It proposes a novel multi-layer network with RIS-equipped UAV relays and analyzes its performance considering practical hardware impairments.
Findings
Proposed system outperforms benchmarks in sum rate and energy efficiency.
Hardware impairments limit system performance at high transmit power.
Transmissive RIS at UAVs offers promising benefits for aerial network design.
Abstract
In order to bolster future wireless networks, there has been a great deal of interest in non-terrestrial networks, especially aerial platforms including high-altitude platform stations (HAPS) and uncrewed aerial vehicles (UAVs). These platforms can integrate advanced technologies such as reconfigurable intelligent surfaces (RIS) and non-orthogonal multiple access (NOMA). In this regard, this paper proposes a multi-layer network architecture consisting of HAPS and UAV, where the former acts as a HAPS super macro base station (HAPS-SMBS), while the latter serves as a relay node for the ground Internet of Things (IoT) devices. The UAV is equipped with active transmissive RIS, which is a novel technology with promising benefits. We also utilize multiple-input single-output (MISO) technology, i.e., multiple antennas at the HAPS-SMBS and a single antenna at the IoT devices. Additionally, we…
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Taxonomy
TopicsUAV Applications and Optimization · Opportunistic and Delay-Tolerant Networks · Satellite Communication Systems
MethodsBalanced Selection
