Content-Aware Transmission in UAV-Assisted Multicast Communication

Zhang, Mingze; Xiong, Yifeng; Ng, Soon Xin; El‐Hajjar, Mohammed

doi:10.1109/twc.2023.3248266

Cited by 13 publications

(4 citation statements)

References 62 publications

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“…these users face obstacles like tall buildings against the service providers. [30], [31]. Further details about current and future trends, challenges, and research directions for the IRS-aided wireless communications are presented in [32]- [37].…”

Section: A Literature Reviewmentioning

confidence: 99%

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Polyhedron Optimization for Power Allocation of Cell-Free Based IRS System

Ahmed,

Baz,

Fouda

2024

IEEE Access

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In this paper, re-configurable intelligent reflecting surfaces (IRS) based on cell-free communications to serve multi-user (MU) are considered. This is to enhance the transmission for the next generation of wireless communications. This technique has witnessed lots of interest recently due to its ability to increase diversity gain, especially in the presence of obstacles between the users and the service providers. The IRS contains low-cost and large-scale reflection elements that work passively to guide the electromagnetic waves toward the direction of interest. These re-configurable meta-surface cells have reflection coefficients that can be adjusted by changing their phase shift to enhance the desired signal of interest and apply interference mitigation. Moreover, the IRS can be exploited to improve the overall sum rate throughput and reduce outage probability. The proposed system considers a transmission between multiple base stations (BSs) that equipped with multiple antennas and several single antenna users through an IRS in the presence and absence of a traditional path between them. Optimization techniques are employed to select the optimum beamforming precoders and to control the IRS's phase shifts by steering the incident signals toward the intended users. Furthermore, an off-the-shelf power allocation optimization approach, called Polyhedron, is exploited to enhance the overall spectral efficiency (SE) and energy efficiency (EE) of the proposed system and reduce the required transmitted power. The proposed system with the suggested optimization approaches demonstrates significant improvement in the SE with a considerable reduction of the entire transmitted power by all BSs especially when increasing the number of antennas at the BSs along with using a higher number of IRS's reflected elements. INDEX TERMSIntelligent reflecting surfaces (IRS), cell-free (CF), Polyhedron optimization technique, Multiple-input single-output (MISO), Power allocation, Optimum beamforming, Multi-user communications, and Spectral efficiency (SE).

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Section: A Literature Reviewmentioning

confidence: 99%

“…It is noteworthy that the proposed system is applicable with UAV-IRS by taking into account the xyz-coordinate for the IRS in a suitable place area with acceptable flight altitude [30], [31].…”

Section: B Our Contributionsmentioning

confidence: 99%

Polyhedron Optimization for Power Allocation of Cell-Free Based IRS System

Ahmed,

Baz,

Fouda

2024

IEEE Access

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“…Besides, the path loss is commonly considered in A2G communication system, which is closely linked with the environment, where the Tx and Rx are operating [63]. In general, the propagation path loss P l is expressed by [64], [65]:…”

Section: A Channel Modelmentioning

confidence: 99%

Deployment of Energy-Efficient Aerial Communication Platforms With Low-Complexity Detection

Zhang

Xiong

et al. 2023

IEEE Trans. Veh. Technol.

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Due to their flexibility, mobility and autonomy, unmanned aerial vehicles (UAVs) are considered as a potential candidate to operate as flying base stations to provide a specific geographical area with air-to-ground wireless communications services. Besides, the limitation of the on-board energy motivates the design of a more energy-efficient way to transmit information. Moreover, the deployment of multiple UAVs can affect the quality of experience (QoE) of users. In this paper, we propose a method that combines the concept of index modulation (IM) with the UAV communications systems, which we refer to as IM-UAV, to attain an improved energy-efficiency (EE). Furthermore, based on the proposed IM-UAV communication system, a gradient descent based UAV deployment scheme is designed to maximize the downlink average rate of the ground users (GUs) in the target area. On the other hand, the maximum likelihood (ML) detection for the IM-UAV requires a high computational complexity for detection at the GUs, while providing the best possible performance. Hence, we propose a low-complexity detection scheme that can separately detect the index symbols and data symbols to reduce the computational complexity at the receiver side. The simulation results demonstrate that the proposed deployment method is capable of attaining the appropriate positions to deploy the UAVs, while the EE is also improved by combining IM with UAV communication system. In addition, the proposed lowcomplexity detection scheme reduces the computation complexity by slightly sacrificing the bit error rate (BER) performance.

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“…Performance Endurance/Range: Define the desired flight time or range the UAV should be able to achieve on a single charge or tank of fuel [81]. Speed: Specify the required maximum and cruising speeds based on mission requirements [82].…”

Section: Requirement Detailsmentioning

confidence: 99%

Securing the skies: A comprehensive survey on internet of drones security challenges and solutions

Oroo Oyondi Felix

2023

World J. Adv. Res. Rev.

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The rapid proliferation of Unmanned Aerial Vehicles (UAVs) in the Internet of Things (IoT) era has given rise to the Internet of Drones (IoD), introducing a myriad of security challenges. This survey paper provides a comprehensive examination of the security landscape within the IoD ecosystem. Delving into communication security, authentication mechanisms, data integrity safeguards, firmware and software vulnerabilities, counter-drone measures, and regulatory compliance, the paper explores the multifaceted dimensions of securing UAVs in interconnected environments. By synthesizing current research findings, industry developments, and regulatory frameworks, this survey not only highlights the evolving threat landscape but also presents an overview of state-of-the-art security solutions. The objective is to offer a holistic understanding of IoD security, fostering awareness and providing a foundation for further research and practical implementations. As the integration of drones into various domains becomes increasingly pervasive, this survey aims to contribute to the ongoing discourse on ensuring the safe and responsible utilization of UAV technology within the broader IoT landscape.

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Content-Aware Transmission in UAV-Assisted Multicast Communication

Cited by 13 publications

References 62 publications

Polyhedron Optimization for Power Allocation of Cell-Free Based IRS System

Polyhedron Optimization for Power Allocation of Cell-Free Based IRS System

Deployment of Energy-Efficient Aerial Communication Platforms With Low-Complexity Detection

Securing the skies: A comprehensive survey on internet of drones security challenges and solutions

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