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Distributed massive multiple-input multiple-output networks utilize a large number of distributed access points (APs) to serve multiple user equipments (UEs), offering significant potential for both communication and localization. However,…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Yibo Wu , Musa Furkan Keskin , Ulf Gustavsson , Gonzalo Seco-Granados , Erik G. Larsson , Henk Wymeersch

We study the empirical version of halfspace depths with the objective of establishing a connection between the rates of convergence and the tail behaviour of the corresponding underlying distributions. The intricate interplay between the…

Statistics Theory · Mathematics 2025-06-03 Sibsankar Singha , Marie Kratz , Sreekar Vadlamani

Future communications systems will definitely be built on green infrastructures. To realize such a goal, recently a new network infrastructure named cloud radio access network (C-RAN) is proposed by China Mobile to enhance network coverage…

Information Theory · Computer Science 2014-10-07 Ang Yang , Zesong Fei , Chengwen Xing , Shaodan Ma , Jingming Kuang , Dalin Zhu , Ming Lei

The fast motion of Low Earth Orbit (LEO) satellites causes the propagation channel to vary rapidly, and its behavior is strongly shaped by the surrounding environment, especially at low elevation angles where signals are highly susceptible…

Networking and Internet Architecture · Computer Science 2026-03-27 Jingyi Tian , Lin Cai

The 5G Phase-2 and beyond wireless systems will focus more on vertical applications such as autonomous driving and industrial Internet-of-things, many of which are categorized as ultra-Reliable Low-Latency Communications (uRLLC). In this…

Information Theory · Computer Science 2019-12-04 Zhiyuan Jiang , Siyu Fu , Sheng Zhou , Zhisheng Niu , Shunqing Zhang , Shugong Xu

With the emergence of Cloud-RAN as one of the dominant architectural solutions for next-generation mobile networks, the reliability and latency on the fronthaul (FH) segment become critical performance metrics for applications such as the…

Networking and Internet Architecture · Computer Science 2018-09-25 Ghizlane Mountaser , Toktam Mahmoodi , Osvaldo Simeone

Due to the implementation bottleneck of training data collection in realistic wireless communications systems, supervised learning-based timing synchronization (TS) is challenged by the incompleteness of training data. To tackle this…

Signal Processing · Electrical Eng. & Systems 2023-07-03 Mintao Zhang , Shuhai Tang , Chaojin Qing , Na Yang , Xi Cai , Jiafan Wang

Orthogonal time frequency space (OTFS) has been widely acknowledged as a promising wireless technology for challenging transmission scenarios, including high-mobility channels. In this paper, we investigate the pilot design for the…

Information Theory · Computer Science 2023-10-31 Mingcheng Nie , Shuangyang Li , Deepak Mishra

The next generation of tactical networks (TNs) is poised to further leverage the key enablers of 5G and beyond 5G (B5G) technology, such as radio access network (RAN) slicing and the open RAN (O-RAN) paradigm, to unlock multiple…

Networking and Internet Architecture · Computer Science 2025-06-11 Abderrahime Filali , Diala Naboulsi , Georges Kaddoum

With growing mobile-network complexity, management and optimization have become increasingly difficult. Centralized algorithms face high control-data overhead and computational load, while distributed approaches often perform far from…

Networking and Internet Architecture · Computer Science 2026-04-28 Paweł Kryszkiewicz , Łukasz Kułacz , Marcin Pakuła , Marcin Dryjanski , Marcin Hoffmann , Piotr Skrzypczak , Heiko Lehmann , Martin Stahn

In wireless networks, an essential step for precise range-based localization is the high-resolution estimation of multipath channel delays. The resolution of traditional delay estimation algorithms is inversely proportional to the bandwidth…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Tarik Kazaz , Gerard J. M. Janssen , Jac Romme , Alle-Jan Van der Veen

The integration of Unmanned Aerial Vehicles (UAVs) into Open Radio Access Networks (O-RAN) enhances communication in disaster management and Search and Rescue (SAR) operations by ensuring connectivity when infrastructure fails. However, SAR…

Cryptography and Security · Computer Science 2025-10-22 Zaineh Abughazzah , Emna Baccour , Loay Ismail , Amr Mohamed , Mounir Hamdi

The analysis of extremal dependence in high dimensions has recently attracted considerable interest. Existing methodology primarily focuses on modeling and estimation of extremal dependence structures, often supported by concentration…

Statistics Theory · Mathematics 2026-04-02 Axel Bücher , Yeonjoon Choi , Katharina Effertz , Stanislav Volgushev

Satellite networks are rapidly evolving, yet most \glspl{ntn} remain isolated from terrestrial orchestration frameworks. Their control architectures are typically monolithic and static, limiting their adaptability to dynamic traffic,…

Networking and Internet Architecture · Computer Science 2026-03-05 Eduardo Baena , Paolo Testolina , Michele Polese , Dimitrios Koutsonikolas , Josep Jornet , Tommaso Melodia

In many systems, the true data-generating process is unknown, requiring forecasters to rely on observed time series. This study proposes a pre-modeling diagnostic framework for horizon-specific forecastability assessment that evaluates…

Applications · Statistics 2026-03-26 Peter Maurice Catt

The open radio access network (O-RAN) describes an industry-driven open architecture and interfaces for building next generation RANs with artificial intelligence (AI) controllers. We circulated a survey among researchers, developers, and…

Networking and Internet Architecture · Computer Science 2022-03-29 Aly S. Abdalla , Pratheek S. Upadhyaya , Vijay K. Shah , Vuk Marojevic

Reinforcement learning (RL) has attracted increasing interest for adaptive traffic signal control due to its model-free ability to learn control policies directly from interaction with the traffic environment. However, several challenges…

Machine Learning · Computer Science 2026-03-17 Dickens Kwesiga , Angshuman Guin , Khaled Abdelghany , Michael Hunter

Accurate channel modeling plays a pivotal role in optimizing communication systems, and fitting field measurements to stochastic models is crucial for capturing the key propagation features and to map these to achievable system…

Signal Processing · Electrical Eng. & Systems 2025-03-10 Santiago Fernández , José David Vega-Sánchez , Juan E. Galeote-Cazorla , F. Javier López-Martínez

In this paper, we consider the importance of channel measurement data from specific sites and its impact on air interface optimization and test. Currently, a range of statistical channel models including 3GPP 38.901 tapped delay line (TDL),…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Johnathan Corgan , Nitin Nair , Rajib Bhattacharjea , Wan Liu , Serhat Tadik , Tom Tsou , Timothy J. O'Shea

Robust and accurate localization in challenging environments is becoming crucial for SLAM. In this paper, we propose a unique sensor configuration for precise and robust odometry by integrating chip radar and a legged robot. Specifically,…

Robotics · Computer Science 2024-07-11 Sangwoo Jung , Wooseong Yang , Ayoung Kim
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