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The emergence of optical intelligent reflecting surface (OIRS) technologies marks a milestone in optical wireless communication (OWC) systems, enabling enhanced control over light propagation in indoor environments. This capability allows…

Signal Processing · Electrical Eng. & Systems 2025-01-08 Jalal Jalali , Hina Tabassum , Jeroen Famaey , Walid Saad , Murat Uysal

This paper studies the performance of optical orthogonal frequency-division multiplexing (OFDM)-based multi-user integrated sensing and communication (ISAC) systems employing non-orthogonal multiple access (NOMA). Due to their inherent high…

Systems and Control · Electrical Eng. & Systems 2025-11-05 Nam N. Luong , Chuyen T. Nguyen , Thanh V. Pham

Integrated Sensing and Communication (ISAC), combined with data-driven approaches, has emerged as a highly significant field, garnering considerable attention from academia and industry. Its potential to enable wide-scale applications in…

Signal Processing · Electrical Eng. & Systems 2023-08-21 Hammam Salem , MD Muzakkir Quamar , Adeb Mansoor , Mohammed Elrashidy , Nasir Saeed , Mudassir Masood

Open-set Semi-supervised Learning (OSSL) holds a realistic setting that unlabeled data may come from classes unseen in the labeled set, i.e., out-of-distribution (OOD) data, which could cause performance degradation in conventional SSL…

Machine Learning · Computer Science 2024-05-21 Yang Yang , Nan Jiang , Yi Xu , De-Chuan Zhan

Machine learning (ML) models serve as powerful tools for threat detection and mitigation; however, they also introduce potential new risks. Adversarial input can exploit these models through standard interfaces, thus creating new attack…

Cryptography and Security · Computer Science 2025-03-10 Betül Güvenç Paltun , Ramin Fuladi , Rim El Malki

In this paper, a novel environmental mapping method is proposed to outline the indoor layout utilizing the line-of-sight (LoS) state information of extremely large aperture array (ELAA) channels. It leverages the spatial resolution provided…

Information Theory · Computer Science 2025-02-17 Jiuyu Liu , Chunmei Xu , Yi Ma , Rahim Tafazolli , Ahmed Elzanaty

This paper explores the co-existence of a macro cell and a small cell for heterogeneous cellular networks, where a macro base station (MBS) and small base station (SBS) transmit to respective macro user (MU) and small user (SU) through…

Information Theory · Computer Science 2018-07-25 Yulong Zou

In this paper, we consider a reconfigurable intelligence surface (RIS) aided uplink multiuser multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) system, where the receiver is assumed to conduct low-complexity…

Information Theory · Computer Science 2022-08-31 Mingyang Yue , Lei Liu , Xiaojun Yuan

In this work, we propose an innovative system that combines high-altitude platforms (HAPs) and optical intelligent reflecting surfaces (OIRS) to address line-of-sight (LOS) challenges in urban environments. Our three-hops system setup…

Numerical Analysis · Mathematics 2025-11-04 Shunyuan Shang , Emna Zedini , Abla Kammoun , Mohamed-Slim Alouini

In the service landscape, the issues of service selection, negotiation of Service Level Agreements (SLA), and SLA-compliance monitoring have typically been used in separate and disparate ways, which affect the quality of the services that…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-05-10 Elarbi Badidi

Traditional standard single-mode fibers (SSMF) are unable to satisfy the future long-distance and high-speed optical channel transmission requirement due to their relatively large signal losses. To address this issue, the ultra-low loss and…

Networking and Internet Architecture · Computer Science 2024-11-26 Kangao Ouyang , Fengxian Tang , Zhilin Yuan , Jun Li , Yongcheng Li

The Internet of Senses (IoS) holds the promise of flawless telepresence-style communication for all human `receptors' and therefore blurs the difference of virtual and real environments. We commence by highlighting the compelling use cases…

Artificial Intelligence · Computer Science 2022-12-22 Roghayeh Joda , Medhat Elsayed , Hatem Abou-zeid , Ramy Atawia , Akram Bin Sediq , Gary Boudreau , Melike Erol-Kantarci , Lajos Hanzo

We consider the problem of multi-user spectrum access in wireless networks. The bandwidth is divided into K orthogonal channels, and M users aim to access the spectrum. Each user chooses a single channel for transmission at each time slot.…

Signal Processing · Electrical Eng. & Systems 2021-01-28 Tomer Gafni , Kobi Cohen

Open-set semi-supervised learning (OSSL) embodies a practical scenario within semi-supervised learning, wherein the unlabeled training set encompasses classes absent from the labeled set. Many existing OSSL methods assume that these…

Machine Learning · Computer Science 2023-12-04 Erik Wallin , Lennart Svensson , Fredrik Kahl , Lars Hammarstrand

Herein, we consider the problem of cooperative multi-access in the presence of overlapped coverage areas. Assuming a frameless ALOHA transmission scheme, we derive exact analytical throughput expressions for throughput in the aforementioned…

Information Theory · Computer Science 2018-08-21 Shun Ogata , Koji Ishibashi , Giuseppe Abreu

High reliability and availability of communication services is a key requirement that needs to be ensured by service providers. Since the direct line-of-sight (LOS) beam is prone to blockage in indoor optical wireless communication systems,…

Software as a service (SaaS) has recently enjoyed much attention as it makes the use of software more convenient and cost-effective. At the same time, the arising of users' expectation for high quality service such as real-time information…

Software Engineering · Computer Science 2016-04-13 Feng-Lin Li , Chi-Hung Chi , Yue Wang , Cong Liu

Ultra-narrowband (UNB) communications is an emerging paradigm that tackles two challenges to realizing massive Internet-of-things (IoT) connectivity over the unlicensed spectrum: the intra-network sharing, i.e., how the spectrum is shared…

Signal Processing · Electrical Eng. & Systems 2018-11-28 Ghaith Hattab , Danijela Cabric

Direction finding and positioning systems based on RF signals are significantly impacted by multipath propagation, particularly in indoor environments. Existing algorithms (e.g MUSIC) perform poorly in resolving Angle of Arrival (AoA) in…

Signal Processing · Electrical Eng. & Systems 2021-12-13 Zhuangzhuang Dai , Yuhang He , Tran Vu , Niki Trigoni , Andrew Markham

Resource allocation and multiple access schemes are instrumental for the success of communication networks, which facilitate seamless wireless connectivity among a growing population of uncoordinated and non-synchronized users. In this…

Signal Processing · Electrical Eng. & Systems 2023-06-22 Sajad Daei , Saeed Razavikia , Marios Kountouris , Mikael Skoglund , Gabor Fodor , Carlo Fischione
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