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

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Low earth orbit (LEO) satellite constellation-enabled communication networks are expected to be an important part of many Internet of Things (IoT) deployments due to their unique advantage of providing seamless global coverage. In this…

Information Theory · Computer Science 2024-10-28 Keke Ying , Zhen Gao , Sheng Chen , Mingyu Zhou , Dezhi Zheng , Symeon Chatzinotas , Björn Ottersten , H. Vincent Poor

The growing demand for high-speed, reliable wireless connectivity in 6G networks necessitates innovative approaches to overcome the limitations of traditional Radio Access Network (RAN). Reconfigurable Intelligent Surface (RIS) and…

Networking and Internet Architecture · Computer Science 2024-11-12 Reza Aghazadeh Ayoubi , Marouan Mizmizi , Eugenio Moro , Ilario Filippini , Umberto Spagnolini

This paper proposes an energy-efficient RIS-enabled NOMA communication for LEO satellite networks. The proposed framework simultaneously optimizes the transmit power of ground terminals at LEO satellite and passive beamforming at RIS while…

Signal Processing · Electrical Eng. & Systems 2023-03-13 Wali Ullah Khan , Eva Lagunas , Asad Mahmood , Symeon Chatzinotas , Björn Ottersten

This paper surveys the optimization frameworks and performance analysis methods for large intelligent surfaces (LIS), which have been emerging as strong candidates to support the sixth-generation wireless physical platforms (6G). Due to…

This paper leverages the potential of Large Intelligent Surface (LIS) for radio sensing in 6G wireless networks. Major research has been undergone about its communication capabilities but it can be exploited as a formidable tool for radio…

Signal Processing · Electrical Eng. & Systems 2022-02-07 Cristian J. Vaca-Rubio , Pablo Ramirez-Espinosa , Kimmo Kansanen , Zheng-Hua Tan , Elisabeth de Carvalho

In recent years, there has been a sharp increase in Global Navigation Satellite Systems (GNSS) interference, which has proven to be problematic in GNSS-dependent civilian applications. Many currently deployed GNSS receivers lack the proper…

Signal Processing · Electrical Eng. & Systems 2025-08-12 Jacob S. Clements , Zachary L. Clements

5G radio at millimeter wave (mmWave) and beyond 5G concepts at 0.1-1 THz can exploit angle and delay measurements for localization, by the virtue of increased bandwidth and large antenna arrays but are limited in terms of blockage caused by…

Signal Processing · Electrical Eng. & Systems 2020-06-12 Henk Wymeersch , Jiguang He , Benoît Denis , Antonio Clemente , Markku Juntti

This paper analyzes the performance of low earth orbit (LEO) satellites based internet-of-things (IoT) network where each IoT node makes use of multiple satellites to communicate with the ground station (GS). In this work, we consider fixed…

Signal Processing · Electrical Eng. & Systems 2020-04-23 Ayush Kumar Dwivedi , Sai Praneeth Chokkarapu , Sachin Chaudhari , Neeraj Varshney

The integration of Smart Surfaces in 6G communication networks, also dubbed as Reconfigurable Intelligent Surfaces (RISs), is a promising paradigm change gaining significant attention given its disruptive features. RISs are a key enabler in…

Networking and Internet Architecture · Computer Science 2025-03-31 Guillermo Encinas-Lago , Francesco Devoti , Marco Rossanese , Vincenzo Sciancalepore , Marco Di Renzo , Xavier Costa-Pérez

High-precision localization and environmental sensing are essential for a new wave of applications, ranging from industrial automation and autonomous systems to augmented reality and remote healthcare. Conventional wireless methods,…

Reconfigurable intelligent surface (RIS) has been recognized as a promising solution for enhancing localization accuracy. Traditional RIS-based localization methods typically rely on prior channel knowledge, beam scanning, and pilot-based…

Signal Processing · Electrical Eng. & Systems 2025-04-04 Jiawei Yao , Yijie Mao , Mingzhe Chen

The next generation of wireless systems will take the concept of communications and networking to another level through the seamless integration of terrestrial, aerial, satellite, maritime and underwater communication systems.…

Networking and Internet Architecture · Computer Science 2022-08-02 Parisa Ramezani , Bin Lyu , Abbas Jamalipour

Standalone Global Navigation Satellite Systems (GNSS) are known to provide positioning accuracy of a few meters in open sky conditions. This accuracy can drop significantly when the line-of-sight (LOS) paths to some GNSS satellites are…

Information Theory · Computer Science 2020-04-17 Zohair Abu-Shaban , Gonzalo Seco-Granados , Craig R. Benson , Henk Wymeersch

From 5G onwards, Non-Terrestrial Networks (NTNs) have emerged as a key component of future network architectures. Leveraging Low Earth Orbit (LEO) satellite constellations, NTNs are capable of building a space Internet and present a…

Networking and Internet Architecture · Computer Science 2024-12-03 Feng Wang , Shengyu Zhang , Huiting Yang , Tony Q. S. Quek

Effective indoor positioning is critical for public safety, enabling first responders to locate at-risk individuals accurately during emergency scenarios. However, traditional Global Navigation Satellite Systems (GNSS) often perform poorly…

Signal Processing · Electrical Eng. & Systems 2025-03-18 Gaurav Duggal , Harish K. Dureppagari , Harpreet S. Dhillon , Jeffrey H. Reed , R. Michael Buehrer

The rapid development of communication technologies in the past decades has provided immense vertical opportunities for individuals and enterprises. However, conventional terrestrial cellular networks have unfortunately neglected the huge…

Signal Processing · Electrical Eng. & Systems 2021-06-22 Shicong Liu , Zhen Gao , Yongpeng Wu , Derrick Wing Kwan Ng , Xiqi Gao , Kai-Kit Wong , Symeon Chatzinotas , Bjorn Ottersten

The next sixth generation (6G) networks are envisioned to integrate sensing and communications in a single system, thus greatly improving spectrum utilization and reducing hardware costs. Low earth orbit (LEO) satellite communications…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Li You , Yongxiang Zhu , Xiaoyu Qiang , Christos G. Tsinos , Wenjin Wang , Xiqi Gao , Björn Ottersten

Xona is deploying Pulsar, a low Earth orbit (LEO) commercial navigation system designed to deliver resilient positioning, navigation, and timing (PNT) where traditional solutions fall short. Pulsar satellites broadcast dedicated signals…

Signal Processing · Electrical Eng. & Systems 2026-02-09 Thyagaraja Marathe , Tyler G. R. Reid , Srinivas Tantry , Michael O'Meara

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

Networking and Internet Architecture · Computer Science 2025-07-11 Jiasheng Wu , Shaojie Su , Wenjun Zhu , Xiong Wang , Jingjing Zhang , Xingqiu He , Yue Gao

Reconfigurable Intelligent Surfaces (RIS) is becoming a transformative technology for the upcoming 6G communication networks, providing a way for smartly maneuvering the electromagnetic waves to enhance coverage and connectivity. This paper…

Signal Processing · Electrical Eng. & Systems 2025-07-31 Atiquzzaman Mondal , Waheeb Tashan , Ayat Al-Olaimat , Hüseyin Arslan