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Active Reconfigurable Intelligent Surfaces (RIS) are a promising technology for 6G wireless networks. This paper investigates a novel hybrid deep reinforcement learning (DRL) framework for resource allocation in a multi-user uplink system…

Signal Processing · Electrical Eng. & Systems 2025-12-29 Mohamed Shalma , Engy Aly Maher , Ahmed El-Mahdy

In this paper, we consider that the unmanned aerial vehicles (UAVs) with attached intelligent reflecting surfaces (IRSs) play the role of flying reflectors that reflect the signal of users to the destination, and utilize the power-domain…

Signal Processing · Electrical Eng. & Systems 2021-11-09 Hussein M. Hariz , Saeed Sheikhzadeh , Nader Mokari , Mohammad R. Javan , B. Abbasi-Arand , Eduard A. Jorswieck

Due to their adaptability and mobility, Unmanned Aerial Vehicles (UAVs) are becoming increasingly essential for wireless network services, particularly for data harvesting tasks. In this context, Artificial Intelligence (AI)-based…

Machine Learning · Computer Science 2026-01-21 Babacar Toure , Dimitrios Tsilimantos , Omid Esrafilian , Marios Kountouris

For orthogonal multiple access (OMA) systems, the number of served user equipments (UEs) is limited to the number of available orthogonal resources. On the other hand, non-orthogonal multiple access (NOMA) schemes allow multiple UEs to use…

Networking and Internet Architecture · Computer Science 2022-09-01 Eike-Manuel Bansbach , Yigit Kiyak , Laurent Schmalen

Effective patient monitoring is vital for timely interventions and improved healthcare outcomes. Traditional monitoring systems often struggle to handle complex, dynamic environments with fluctuating vital signs, leading to delays in…

Machine Learning · Computer Science 2024-10-30 Thanveer Shaik , Xiaohui Tao , Lin Li , Haoran Xie , Hong-Ning Dai , Feng Zhao , Jianming Yong

This paper presents a distributed beamforming framework for a constellation of airborne platform stations (APSs) in a massive Multiple-Input and Multiple-Output (MIMO) non-terrestrial network (NTN) that targets the downlink sum-rate…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Hesam Khoshkbari , Georges Kaddoum , Omid Abbasi , Bassant Selim , Halim Yanikomeroglu

A dual-hop status update system aided by energy harvesting (EH) relays with finite data and energy buffers is studied in this work. To achieve timely status updates, the best relays should be selected to minimize the average age of…

Systems and Control · Electrical Eng. & Systems 2023-06-05 Sin-Yu Huang , Kuang-Hao , Liu

Age of Information (AoI) has attracted much attention recently due to its capability of characterizing the freshness of information. To improve information freshness over fading channels, efficient scheduling methods are highly desired for…

Information Theory · Computer Science 2020-02-24 Yalei Wang , Wei Chen

This paper investigates the problem of age of information (AoI) aware radio resource management for a platooning system. Multiple autonomous platoons exploit the cellular wireless vehicle-to-everything (C-V2X) communication technology to…

Signal Processing · Electrical Eng. & Systems 2021-05-11 Mohammad Parvini , Mohammad Reza Javan , Nader Mokari , Bijan Abbasi , Eduard A. Jorswieck

Using environmental sensory data can enhance communications beam training and reduce its overhead compared to conventional methods. However, the availability of fresh sensory data during inference may be limited due to sensing constraints…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Abolfazl Zakeri , Nhan Thanh Nguyen , Ahmed Alkhateeb , Markku Juntti

Deep Reinforcement Learning (DRL) is a powerful tool used for addressing complex challenges in mobile networks. This paper investigates the application of two DRL models, on-policy and off-policy, in the field of resource allocation for…

Networking and Internet Architecture · Computer Science 2024-12-04 Manal Mehdaoui , Amine Abouaomar

With the rapid development of Mobile Edge Computing (MEC), various real-time applications have been deployed to benefit people's daily lives. The performance of these applications relies heavily on the freshness of collected environmental…

Machine Learning · Computer Science 2024-02-26 Xingqiu He , Chaoqun You , Tony Q. S. Quek

Long Range (LoRa) wireless technology, characterized by low power consumption and a long communication range, is regarded as one of the enabling technologies for the Industrial Internet of Things (IIoT). However, as the network scale…

Artificial Intelligence · Computer Science 2023-09-19 Xu Zhang , Ziqi Lin , Shimin Gong , Bo Gu , Dusit Niyato

As a main use case of 5G and Beyond wireless network, the ever-increasing machine type communications (MTC) devices pose critical challenges over MTC network in recent years. It is imperative to support massive MTC devices with limited…

Networking and Internet Architecture · Computer Science 2022-02-23 Ziru Chen , Ran Zhang , Lin X. Cai , Yu Cheng , Yong Liu

Age of Information (AoI) reflects the time that is elapsed from the generation of a packet by a 5G user equipment(UE) to the reception of the packet by a controller. A design of an AoI-aware radio resource scheduler for UEs via…

Networking and Internet Architecture · Computer Science 2021-10-20 Chien-Cheng Wu , Petar Popovski , Zheng-Hua Tan , Cedomir Stefanovic

As emerging networks such as Open Radio Access Networks (O-RAN) and 5G continue to grow, the demand for various services with different requirements is increasing. Network slicing has emerged as a potential solution to address the different…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-19 Fatemeh Lotfi , Fatemeh Afghah , Jonathan Ashdown

Mobile users are prone to experience beam failure due to beam drifting in millimeter wave (mmWave) communications. Sensing can help alleviate beam drifting with timely beam changes and low overhead since it does not need user feedback. This…

Signal Processing · Electrical Eng. & Systems 2025-05-12 Xiyu Wang , Gilberto Berardinelli , Hei Victor Cheng , Petar Popovski , Ramoni Adeogun

In this paper, we develop a hierarchical aerial computing framework composed of high altitude platform (HAP) and unmanned aerial vehicles (UAVs) to compute the fully offloaded tasks of terrestrial mobile users which are connected through an…

Networking and Internet Architecture · Computer Science 2023-05-31 Maryam Ansarifard , Nader Mokari , Mohammadreza Javan , Hamid Saeedi , Eduard A. Jorswieck

Ultra-dense IoT networks require an effective non-orthogonal multiple access (NOMA) scheme, yet they experience intense interference because of fixed code assignment. We suggest a reinforcement learning (RL) model of dynamic Gold code…

Networking and Internet Architecture · Computer Science 2026-02-17 Sumita Majhi , Kishan Thakkar , Pinaki Mitra

Non-orthogonal multiple access (NOMA) is a promising technique for optical wireless communication (OWC), enabling multiple users to share the optical spectrum simultaneously through the power domain. However, imperfect channel state…

Systems and Control · Electrical Eng. & Systems 2026-05-05 Ahmed A. Hassan , Ahmad Adnan Qidan , Taisir Elgorashi , Jaafar Elmirghani