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Long-range (LoRa) communication technology, distinguished by its low power consumption and long communication range, is widely used in the Internet of Things. Nevertheless, the LoRa MAC layer adopts pure ALOHA for medium access control,…

多智能体系统 · 计算机科学 2024-07-19 Ziqi Lin , Xu Zhang , Shimin Gong , Lanhua Li , Zhou Su , Bo Gu

Multi-functional reconfigurable intelligent surface (MF-RIS) is conceived to address the communication efficiency thanks to its extended signal coverage from its active RIS capability and self-sustainability from energy harvesting (EH). We…

信号处理 · 电气工程与系统科学 2026-03-17 Chi-Te Kuo , Li-Hsiang Shen , Jyun-Jhe Huang

This work addresses resource allocation challenges in multi-cell wireless systems catering to enhanced Mobile Broadband (eMBB) and Ultra-Reliable Low Latency Communications (URLLC) users. We present a distributed learning framework tailored…

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 , Qammer H. Abbasi , M. A. Imran

This paper introduces a novel beam tracking scheme for full-duplex ground user terminals aiming to transmit uplink and receive downlink from two low Earth orbit (LEO) satellites at the same time and same frequency. Our proposed technique…

信号处理 · 电气工程与系统科学 2024-11-15 Chaeyeon Kim , Joohyun Son , Daesik Hong , Ian P. Roberts

In this paper, we propose a multiple input multiple output (MIMO) Full-Duplex Integrated Sensing and Communication System consisting of multiple targets, a single downlink, and a single uplink user. We employed signal-to-interference plus…

信号处理 · 电气工程与系统科学 2023-12-19 Muhammad Talha , Besma Smida , Md Atiqul Islam , George C. Alexandropoulos

Low earth orbit (LEO) satellite communication networks have been considered as promising solutions to providing high data rate and seamless coverage, where satellite beam management plays a key role. However, due to the limitation of beam…

社会与信息网络 · 计算机科学 2024-04-16 Jianfeng Zhu , Yaohua Sun , Mugen Peng

Recently, distributed controller architectures have been quickly gaining popularity in Software-Defined Networking (SDN). However, the use of distributed controllers introduces a new and important Request Dispatching (RD) problem with the…

网络与互联网体系结构 · 计算机科学 2023-05-19 Victoria Huang , Gang Chen , Qiang Fu

A pinching-antenna system (PASS)-enhanced mobile edge computing (MEC) architecture is investigated to improve the task offloading efficiency and latency performance in dynamic wireless environments. By leveraging dielectric waveguides and…

信号处理 · 电气工程与系统科学 2025-10-28 Zhaoming Hu , Ruikang Zhong , Xidong Mu , Dengao Li , Yuanwei Liu

Highly dynamic mobile ad-hoc networks (MANETs) remain as one of the most challenging environments to develop and deploy robust, efficient, and scalable routing protocols. In this paper, we present DeepCQ+ routing protocol which, in a novel…

网络与互联网体系结构 · 计算机科学 2021-12-01 Saeed Kaviani , Bo Ryu , Ejaz Ahmed , Kevin Larson , Anh Le , Alex Yahja , Jae H. Kim

The basic active disturbance rejection control (BADRC) algorithm with only one order higher extended state observer (ESO) proves to be robust to both internal and external disturbances. An advantage of BADRC is that in many applications it…

系统与控制 · 计算机科学 2016-10-04 Jinwen Pan , Yong Wang

We consider an Intelligent Reflecting Surface (IRS)-aided multiple-input single-output (MISO) system for downlink transmission. We compare the performance of Deep Reinforcement Learning (DRL) and conventional optimization methods in finding…

机器学习 · 计算机科学 2021-07-27 Amal Feriani , Amine Mezghani , Ekram Hossain

The proliferation of intelligent transportation systems (ITS) has led to increasing demand for diverse network applications. However, conventional terrestrial access networks (TANs) are inadequate in accommodating various applications for…

网络与互联网体系结构 · 计算机科学 2023-06-16 Sheikh Salman Hassan , Yu Min Park , Yan Kyaw Tun , Walid Saad , Zhu Han , Choong Seon Hong

Despite the advantages of multi-agent reinforcement learning (MARL) for wireless use case such as medium access control (MAC), their real-world deployment in Internet of Things (IoT) is hindered by their sample inefficiency. To alleviate…

信息论 · 计算机科学 2025-11-14 Aswin Arun , Christo Kurisummoottil Thomas , Rimalpudi Sarvendranath , Walid Saad

A mega-constellation of low-altitude earth orbit (LEO) satellites (SATs) and burgeoning unmanned aerial vehicles (UAVs) are promising enablers for high-speed and long-distance communications in beyond fifth-generation (5G) systems.…

网络与互联网体系结构 · 计算机科学 2020-10-21 Ju-Hyung Lee , Jihong Park , Mehdi Bennis , Young-Chai Ko

This paper aims to analyze the stochastic performance of a multiple input multiple output (MIMO) integrated sensing and communication (ISAC) system in a downlink scenario, where a base station (BS) transmits a dual-functional…

信息论 · 计算机科学 2023-05-25 Marziyeh Soltani , Mahtab Mirmohseni , Rahim Tafazolli

Low Earth orbit (LEO) satellites play an essential role in intelligent Earth observation by leveraging artificial intelligence models. However, limited onboard memory and excessive inference delay prevent the practical deployment of large…

分布式、并行与集群计算 · 计算机科学 2026-04-07 Songge Zhang , Wen Wu , Liang Li , Ye Wang , Xuemin , Shen

Integrated sensing and communication (ISAC) and ubiquitous connectivity are two usage scenarios of sixth generation (6G) networks. In this context, low earth orbit (LEO) satellite constellations, as an important component of 6G networks, is…

信息论 · 计算机科学 2025-01-14 Qi Wang , Xiaoming Chen , Qiao Qi , Mili Li , Wolfgang Gerstacker

Low Earth orbit (LEO) satellites can be used to assist maritime wireless communications for wide-area data transmission. However, the extensive coverage of LEO satellites, combined with the openness of channels, can cause the communication…

密码学与安全 · 计算机科学 2025-11-11 Jiawei Huang , Aimin Wang , Geng Sun , Jiahui Li , Jiacheng Wang , Dusit Niyato , Victor C. M. Leung

This paper introduces an open source simulator for packet routing in Low Earth Orbit Satellite Constellations (LSatCs) considering the dynamic system uncertainties. The simulator, implemented in Python, supports traditional Dijkstra's based…

机器学习 · 计算机科学 2024-12-02 Federico Lozano-Cuadra , Mathias D. Thorsager , Israel Leyva-Mayorga , Beatriz Soret

The synthetic aperture radar (SAR) technology enables satellites to efficiently acquire high quality images of the Earth surface. This generates significant communication traffic from the satellite to the ground stations, and, thus, image…

最优化与控制 · 数学 2015-02-17 Daniel Karapetyan , Snezana Mitrovic-Minic , Krishna T. Malladi , Abraham P. Punnen
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