کنفرانس مهندسی برق ایران

صفحه اصلی / سی امین کنفرانس بین المللی مهندسی برق

Joint User Association and UAV Location Optimization for Two-Tired Visible Light Communication Networks

نویسندگان :

Alireza Qazavi¹ Foroogh Sadat Tabataba² Mehdi Naderi Soorki³

1- Isfahan University of Technology 2- Isfahan University of Technology 3- دانشگاه شهید چمران اهواز

کلمات کلیدی :

Unmanned aerial vehicles, Visible light Communications, User coverage, K-means, smallest enclosing disk.

چکیده :

In this paper, an unmanned aerial vehicle (UAVs)-assisted visible light communication (VLC) has been considered which has two tiers: UAV-to-centroid and device-to-device (D2D). In the UAV-to-centroid tier, each UAV can simultaneously provide communications and illumination for the centroids of the ground users over VLC links. In the D2D tier, the centroids retransmit received data from UAV over D2D links to the cluster members. For network, the optimization problem of joint user association and deployment location of UAVs is formulated so as to maximize the received data, satisfy illumination constraint, and also the user cluster size. An iterative algorithm is first proposed to transform the optimization problem into a series of two interdependent sub problems. Following the smallest enclosing disk theorem, a random incremental construction method is designed to find the optimal UAV locations. Then, inspired by unsupervised learning method, a clustering algorithm to find a suboptimal user association is proposed. Our simulation results show that the proposed scheme on average guarantees the users brightness 0.77 lux more than their threshold requirements. Moreover, the received bitrate plus number of D2D connected users under our proposed method is 50.69% more than the scenario in which we have RF Link instead of VLC link and do not optimize UAV location.

لیست مقالات

لیست مقالات بایگانی شده

Weighted Fuzzy-Based PSNR for Watermark Visual Quality Evaluation

Maedeh Jamali - Nader Karimi - Shadrokh Samavi

Analysis of the DC Bias Effects on the Transformer Vibration Using a Multi-field Coupling Model

Amir Esmaeili Nezhad - Mohammad Hamed Samimi

Design of Dual-beam Orthogonal Circular Polarized Leaky-wave Holographic Antenna

Mohammad Amin Chaychizadeh - Nader Komjani

ارائه یک مبدل DC-DC منبع امپدانسی تک سوئیچه تک هسته مغناطیسی فوق افزاینده مناسب برای استفاده در کاربرد های انرژی نو

معصومه پرستش - سجاد رستمی

Privacy-Preserving Model Predictive Control Using Secure Multi-Party Computation

Saeed Adelipour - Mohammad Haeri

Automated Optic Disc Segmentation in Low-Quality Retinopathy of Prematurity Retinal Images

Abolfazl Karimiyan Abdar - Reza AghaeiZadeh Zoroofi - Naser Shoeibi - Sare Safi - Alireza Ramezani - Homayoun Nikkhah - Hamid Safi - Mohammad Reza Ansari Astaneh

Design of Dual-Band Triangular Microstrip Antenna Using Fractal Structure for Wi-Max and Wi-Fi Applications

Arian Mianji - Mohammad Bemani - Saeid Nikmehr - Ahmad Atashpaz Gargari

A Method Based on Attention Mechanism using Bidirectional Long-Short Term Memory(BLSTM) for Question Answering

Seyed Vahid Moravvej - Mohammad Javad Maleki Kahaki - Moein Salimi Sartakhti - Abdolreza Mirzaei

Extended Phase Shift Control in Dual Active Bridge Converter Considering Magnetizing Inductance of Transformer

Masood Soleimanifard - Ali Yazdian Varjani

Improving Quarter-Wavelength Resonator Technique for Parasitic Cancellation of the ESD Protection Diode for High-Frequency Applications

Emadodin Zia Khodadadian - Mojtaba Joodaki

بیشتر