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We consider the problem of proactive handoff and beam selection in Terahertz (THz) drone communication networks assisted with reconfigurable intelligent surfaces (RIS). Drones have emerged as critical assets for next-generation wireless…

信息论 · 计算机科学 2021-02-23 Nof Abuzainab , Muhammad Alrabeiah , Ahmed Alkhateeb , Yalin E. Sagduyu

As a key complement to terrestrial networks and a fundamental component of future 6G systems, Low Earth Orbit (LEO) satellite networks are expected to provide high-quality communication services when integrated with ground-based…

分布式、并行与集群计算 · 计算机科学 2025-12-30 Zixuan Song , Zhishu Shen , Xiaoyu Zheng , Qiushi Zheng , Zheng Lei , Jiong Jin

This paper develops a comprehensive framework to investigate and optimize the downlink performance of cooperative multi-band networks (MBNs) operating on upper mid-band (UMB) and terahertz (THz) frequencies, where base stations (BSs) in…

信号处理 · 电气工程与系统科学 2025-09-30 Mohammad Amin Saeidi , Hina Tabassum

In this paper, a proactive dynamic spectrum sharing scheme between 4G and 5G systems is proposed. In particular, a controller decides on the resource split between NR and LTE every subframe while accounting for future network states such as…

网络与互联网体系结构 · 计算机科学 2021-02-23 Ursula Challita , David Sandberg

In the coming years, the satellite broadband market will experience significant increases in the service demand, especially for the mobility sector, where demand is burstier. Many of the next generation of satellites will be equipped with…

信号处理 · 电气工程与系统科学 2019-06-04 Juan Jose Garau Luis , Markus Guerster , Inigo del Portillo , Edward Crawley , Bruce Cameron

Low-Earth orbit (LEO) satellites utilizing beam hopping (BH) technology offer extensive coverage, low latency, high bandwidth, and significant flexibility. However, the uneven geographical distribution and temporal variability of ground…

信号处理 · 电气工程与系统科学 2024-11-15 Ruili Zhao , Jun Cai , Jiangtao Luo , Junpeng Gao , Yongyi Ran

In past years, non-terrestrial networks (NTNs) have emerged as a viable solution for providing ubiquitous connectivity for future wireless networks due to their ability to reach large geographical areas. However, the efficient integration…

网络与互联网体系结构 · 计算机科学 2023-10-04 Henri Alam , Antonio De Domenico , David López-Pérez , Florian Kaltenberger

Terahertz (THz) communications are envisioned as a promising technology for 6G and beyond wireless systems, providing ultra-broad bandwidth and thus Terabit-per-second (Tbps) data rates. However, as foundation of designing THz…

信号处理 · 电气工程与系统科学 2023-01-04 Zhengdong Hu , Yuanbo Li , Chong Han

Modern satellites deployed in low Earth orbit (LEO) accommodate processing payloads that can be exploited for edge computing. Furthermore, by implementing inter-satellite links, the LEO satellites in a constellation can route the data…

系统与控制 · 电气工程与系统科学 2023-06-23 Marc Martinez-Gost , Israel Leyva-Mayorga , Ana Pérez-Neira , Miguel Ángel Vázquez , Beatriz Soret , Marco Moretti

In the rapidly evolving landscape of 5G and beyond, cloud-native Open Radio Access Networks (O-RAN) present a paradigm shift towards intelligent, flexible, and sustainable network operations. This study addresses the intricate challenge of…

信号处理 · 电气工程与系统科学 2024-07-17 Rana M. Sohaib , Syed Tariq Shah , Oluwakayode Onireti , Yusuf Sambo , M. A. Imran

Optimal resource allocation is a fundamental challenge for dense and heterogeneous wireless networks with massive wireless connections. Because of the non-convex nature of the optimization problem, it is computationally demanding to obtain…

网络与互联网体系结构 · 计算机科学 2019-05-01 Kazi Ishfaq Ahmed , Ekram Hossain

Efficient multi-robot task allocation (MRTA) is fundamental to various time-sensitive applications such as disaster response, warehouse operations, and construction. This paper tackles a particular class of these problems that we call…

多智能体系统 · 计算机科学 2023-08-21 Steve Paul , Wenyuan Li , Brian Smyth , Yuzhou Chen , Yulia Gel , Souma Chowdhury

This paper introduces a full solution for decentralized routing in Low Earth Orbit satellite constellations based on continual Deep Reinforcement Learning (DRL). This requires addressing multiple challenges, including the partial knowledge…

机器学习 · 计算机科学 2024-05-22 Federico Lozano-Cuadra , Beatriz Soret , Israel Leyva-Mayorga , Petar Popovski

A simultaneously transmitting and reflecting surface (STARS) aided terahertz (THz) communication system is proposed. A novel power consumption model is proposed that depends on the type and resolution of the STARS elements. The spectral…

信息论 · 计算机科学 2023-06-19 Zhaolin Wang , Xidong Mu , Jiaqi Xu , Yuanwei Liu

Terahertz (THz) communication is a promising technology for future wireless communications, offering data rates of up to several terabits-per-second (Tbps). However, the range of THz band communications is often limited by high pathloss and…

信号处理 · 电气工程与系统科学 2024-01-29 Muddasir Rahim , Thanh Luan Nguyen , Georges Kaddoum , Tri Nhu Do

Terahertz (THz) communication (0.1-10 THz) is regarded as a promising technology, which provides rich available bandwidth and high data rate of terahertz bit per second (Tbps). However, THz signals suffer from high path loss, which…

信息论 · 计算机科学 2021-05-26 Sha Xie , Lingxiang Li , Zhi Chen , Shaoqian Li

Integrating non-terrestrial networks (NTNs) with terrestrial networks (TNs) is key to enhancing coverage, capacity, and reliability in future wireless communications. However, the multi-tier, heterogeneous architecture of these integrated…

信号处理 · 电气工程与系统科学 2025-04-29 Muhammad Umer , Muhammad Ahmed Mohsin , Ali Arshad Nasir , Hatem Abou-Zeid , Syed ALi Hassan

Efficient job allocation in complex scheduling problems poses significant challenges in real-world applications. In this report, we propose a novel approach that leverages the power of Reinforcement Learning (RL) and Graph Neural Networks…

机器学习 · 计算机科学 2025-02-03 Lars C. P. M. Quaedvlieg

In replacing fossil fuels with renewable energy resources for carbon neutrality, the unbalanced resource production of intermittent wind and photovoltaic (PV) power is a critical issue for peer-to-peer (P2P) power trading. To address this…

机器学习 · 计算机科学 2023-01-03 Sangkeum Lee , Sarvar Hussain Nengroo , Hojun Jin , Taewook Heo , Yoonmee Doh , Chungho Lee , Dongsoo Har

Next-generation wireless cellular networks are expected to provide unparalleled Quality-of-Service (QoS) for emerging wireless applications, necessitating strict performance guarantees, e.g., in terms of link-level data rates. A critical…

人工智能 · 计算机科学 2025-04-29 Omid Semiari , Hosein Nikopour , Shilpa Talwar