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Related papers: 6G RIS-aided Single-LEO Localization with Slow and…

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Reconfigurable Intelligent Surfaces (RIS) enable dynamic electromagnetic control for 6G networks, but existing control schemes lack responsiveness to fast-varying network conditions, limiting their applicability for ultra-reliable low…

Networking and Internet Architecture · Computer Science 2026-03-12 Oscar Adamuz-Hinojosa , Lanfranco Zanzi , Vincenzo Sciancalepore , Marco Di Renzo , Xavier Costa-Pérez

Reconfigurable Intelligent Surfaces (RIS) show great promise in the realm of 6th generation (6G) wireless systems, particularly in the areas of localization and communication. Their cost-effectiveness and energy efficiency enable the…

Signal Processing · Electrical Eng. & Systems 2024-03-12 Han Yan , Hua Chen , Wei Liu , Songjie Yang , Gang Wang , Chau Yuen

Reflecting intelligent surfaces (RIS) is a low-cost and energy-efficient solution to achieve high spectral efficiency in sixth-generation (6G) networks. The basic idea of RIS is to smartly reconfigure the signal propagation by using passive…

Signal Processing · Electrical Eng. & Systems 2022-04-27 Wali Ullah Khan , Eva Lagunas , Asad Mahmood , Symeon Chatzinotas , Bjorn Ottersten

Reliable geolocation of non-cooperative emitters in environments where Global Navigation Satellite Systems (GNSS) are unavailable or degraded is a key enabler for spectrum regulation, emergency response, autonomous mobility, and Integrated…

Signal Processing · Electrical Eng. & Systems 2026-04-17 Rafal Szczepanik

Low Earth orbit (LEO) satellites are a promising technology for providing low-latency, high-data-rate, and wide-coverage communication services. However, with growing demand for data transmission, future non-terrestrial networks (NTNs)…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Ziang Liu , Wonjae Shin , Bruno Clerckx

We consider the problem of joint three-dimensional localization and synchronization for a single-input single-output (SISO) system in the presence of a reconfigurable intelligent surface (RIS), equipped with a uniform planar array. First,…

Signal Processing · Electrical Eng. & Systems 2021-02-18 Kamran Keykhosravi , Musa Furkan Keskin , Gonzalo Seco-Granados , Henk Wymeersch

Low Earth Orbit (LEO) satellite communication is a promising approach to providing Internet connectivity to users in many remote areas. As videos are likely to account for most traffic in the LEO satellite network, as in the rest of the…

Networking and Internet Architecture · Computer Science 2026-04-22 Kyoungjun Park , Zhiyuan He , Cheng Luo , Yi Xu , Lili Qiu , Changhan Ge , Muhammad Muaz

Accurate asset localization holds paramount importance across various industries, ranging from transportation management to search and rescue operations. In scenarios where traditional positioning equations cannot be adequately solved due…

Signal Processing · Electrical Eng. & Systems 2024-07-08 Alejandro Gonzalez-Garrido , Jorge Querol , Henk Wymeersch , Symeon Chatzinotas

With the rapid expansion of low Earth orbit (LEO) constellations, thousands of satellites are now in operation, many equipped with onboard GNSS receivers capable of continuous orbit determination and time synchronization. This development…

Signal Processing · Electrical Eng. & Systems 2026-01-14 Xing Liu , Xue Xian Zheng , José A. López-Salcedo , Tareq Y. Al-Naffouri , Gonzalo Seco-Granados

As air travel demand increases, uninterrupted high-speed internet access becomes essential. However, current satellite-based systems face latency and connectivity challenges. While prior research has focused on terrestrial 5G and…

Networking and Internet Architecture · Computer Science 2025-04-11 Raúl Parada , Victor Monzon Baeza , Carlos Horcajo Fernández de Gamboa , Rocío Serrano Camacho , Carlos Monzo

As 6G wireless networks seek to enable robust and dynamic programmable wireless environments (PWEs), reconfigurable intelligent surfaces (RISs) have emerged as a cornerstone for controlling electromagnetic wave propagation. However,…

The possibility of jointly optimizing location sensing and communication resources, facilitated by the existence of communication and sensing spectrum sharing, is what promotes the system performance to a higher level. However, the rapid…

Systems and Control · Electrical Eng. & Systems 2024-05-29 Haijun Zhang , Bowen Chen , Xiangnan Liu , Chao Ren

A Reconfigurable Intelligent Surface (RIS) can significantly enhance network positioning and mapping, acting as an additional anchor point in the reference system and improving signal strength and measurement diversity through the…

Information Theory · Computer Science 2024-11-15 Dimitris Kompostiotis , Dimitris Vordonis , Vassilis Paliouras , George C. Alexandropoulos , Florin Grec

Positioning is expected to be a core function in intelligent transportation systems (ITSs) to support communication and location-based services, such as autonomous driving, traffic control, etc. With the advent of low-cost reflective…

Signal Processing · Electrical Eng. & Systems 2023-11-15 Hui Chen , Pinjun Zheng , Musa Furkan Keskin , Tareq Al-Naffouri , Henk Wymeersch

The coming extension of cellular technology to base-stations in low-earth orbit (LEO) requires a fresh look at terrestrial 3GPP channel models. Relative to such models, sky-to-ground cellular channels will exhibit less diffraction, deeper…

Signal Processing · Electrical Eng. & Systems 2021-07-30 Eunsun Kim , Ian P. Roberts , Peter A. Iannucci , Jeffrey G. Andrews

The use of satellites to provide ubiquitous coverage and connectivity for densely deployed Internet of Things (IoT) networks is expected to be a reality in emerging 6G networks. Yet the low battery capacity of IoT nodes constitutes a…

Information Theory · Computer Science 2021-05-24 Kürşat Tekbıyık , Güneş Karabulut Kurt , Halim Yanikomeroglu

Based on the vision of global coverage for sixth-generation (6G) wireless communication systems, the low earth orbit (LEO) satellite-to-ground channel model for urban scenarios has emerged as highly important for the system design. In this…

Systems and Control · Electrical Eng. & Systems 2025-01-07 Jiahao Ning , Jinhao Deng , Yuanfang Li , Chi Zhao , Jiashu Liu , Songjiang Yang , Yinghua Wang , Jie Huang , Cheng-Xiang Wang

Space-air-ground integrated networks (SAGINs) help enhance the service performance in the sixth generation communication system. SAGIN is basically composed of satellites, aerial vehicles, ground facilities, as well as multiple terrestrial…

Networking and Internet Architecture · Computer Science 2023-07-04 Ziye Jia , Chao Dong , Kun Guo , Qihui Wu

Low earth orbit (LEO) mega-constellations, integrating government space systems and commercial practices, have emerged as enabling technologies for the sixth generation (6G) networks due to their good merits of global coverage and…

Networking and Internet Architecture · Computer Science 2022-05-18 Lin Shih-Chun , Lin Chia-Hung , Chu Liang C. , Lien Shao-Yu

The construction of Low Earth Orbit (LEO) satellite constellations has recently spurred tremendous attention from academia and industry. 5G and 6G standards have specified LEO satellite network as a key component of 5G and 6G networks.…

Networking and Internet Architecture · Computer Science 2025-01-08 Jiasheng Wu , Shaojie Su , Xiong Wang , Jingjing Zhang , Yue Gao