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The ever-growing number of wireless communication devices and technologies demands spectrum-sharing techniques. Effective coexistence management is crucial to avoid harmful interference, especially with critical systems like nautical and…

网络与互联网体系结构 · 计算机科学 2023-10-16 Davide Villa , Daniel Uvaydov , Leonardo Bonati , Pedram Johari , Josep Miquel Jornet , Tommaso Melodia

The co-existence of terrestrial and non-terrestrial networks (NTNs) is essential for achieving comprehensive global coverage in sixth-generation cellular networks. Given the escalating demand for spectrum, there is an ongoing global…

信号处理 · 电气工程与系统科学 2025-01-13 Lingrui Zhang , Zheng Li , Sheng Yang

Traditional link adaptation (LA) schemes in cellular network must be revised for networks beyond the fifth generation (b5G), to guarantee the strict latency and reliability requirements advocated by ultra reliable low latency communications…

新兴技术 · 计算机科学 2021-05-12 Alessandro Brighente , Jafar Mohammadi , Paolo Baracca , Silvio Mandelli , Stefano Tomasin

Diffusion models (DMs) have recently achieved significant success in wireless communications systems due to their denoising capabilities. The broadcast nature of wireless signals makes them susceptible not only to Gaussian noise, but also…

信息论 · 计算机科学 2025-05-27 Tong Wu , Zhiyong Chen , Dazhi He , Feng Yang , Meixia Tao , Xiaodong Xu , Wenjun Zhang , Ping Zhang

The growing demand for broader bandwidth in cellular networks has turned the upper mid-band (7-24 GHz) into a focal point for expansion. However, the integration of terrestrial cellular and incumbent satellite services, particularly in the…

系统与控制 · 电气工程与系统科学 2024-03-08 Seongjoon Kang , Giovanni Geraci , Marco Mezzavilla , Sundeep Rangan

Wireless networks are a common place nowadays and almost all of the modern devices support wireless communication in some form. These networks differ from more traditional computing systems due to the ad-hoc and spontaneous nature of…

网络与互联网体系结构 · 计算机科学 2010-07-15 Yasir Arfat Malkani , Lachhman Das Dhomeja

We present a novel and first-of-its-kind information-theoretic framework for the key design consideration and implementation of a ground-to-UAV (G2U) communication network to minimize end-to-end transmission delay in the presence of…

信息论 · 计算机科学 2023-05-05 Sudhanshu Arya , Ying Wang

The escalating overlap between non-geostationary orbit (NGSO) and geostationary orbit (GSO) satellite frequency allocations necessitates accurate interference detection methods that address two pivotal technical gaps: computationally…

信号处理 · 电气工程与系统科学 2025-04-25 Chunyu Yang , Boyu Yang , Kun Qiu , Zhe Chen , Yue Gao

In this paper, we investigate real-time interference mitigation in multiuser wireless networks assisted by simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs). Unlike conventional methods that rely on…

信号处理 · 电气工程与系统科学 2025-06-17 Abuzar B. M. Adam , Mohammed A. M. Elhassan , Elhadj Moustapha Diallo , Mohamed Amine Ouamri

This paper investigates symbol detection for single-carrier communication systems operating in the presence of additive interference with Nakagami-m statistics. Such interference departs from the assumptions underlying conventional…

In this letter, we propose three schemes designed to detect attacks over the air interface in cellular networks. These decision rules rely on the generalized likelihood ratio test, and are fed by data that can be acquired using common…

信号处理 · 电气工程与系统科学 2021-06-15 Danilo Orlando , Ivan Palamà , Stefania Bartoletti , Giuseppe Bianchi , Nicola Blefari Melazzi

In this paper, we propose a new method of channel estimation for asynchronous additive white Gaussian noise channels in satellite communications. This method is based on signals correlation and multiuser interference cancellation which…

网络与互联网体系结构 · 计算机科学 2010-12-02 Helmi Chaouech , Ridha Bouallegue

This paper proposes the transmission of beacon signals to alert potential interferers of an ongoing or impending passive sensing measurement. We focus on the interference from Low-Earth Orbiting (LEO) satellites to a radio-telescope. We…

信号处理 · 电气工程与系统科学 2023-12-21 Cuneyd Ozturk , Randall A. Berry , Dongning Guo , Michael L. Honig , Frank D. Lind

Interference limits performance in wireless networks, and cooperation among receivers or transmitters can help mitigate interference by forming distributed MIMO systems. Earlier work shows how limited receiver cooperation helps mitigate…

信息论 · 计算机科学 2010-05-03 I-Hsiang Wang , David N. C. Tse

Mission-critical wireless networks are being up-graded to 4G long-term evolution (LTE). As opposed to capacity, these networks require very high reliability and security as well as easy deployment and operation in the field. Wireless…

网络与互联网体系结构 · 计算机科学 2017-08-24 Vuk Marojevic , Raghunandan M. Rao , Sean Ha , Jeffrey H. Reed

Because of the ever-growing amount of wireless consumers, spectrum-sharing techniques have been increasingly common in the wireless ecosystem, with the main goal of avoiding harmful interference to coexisting communication systems. This is…

网络与互联网体系结构 · 计算机科学 2023-10-16 Davide Villa , Daniel Uvaydov , Leonardo Bonati , Pedram Johari , Josep Miquel Jornet , Tommaso Melodia

Future wireless networks, in particular, 5G and beyond, are anticipated to deploy dense Low Earth Orbit (LEO) satellites to provide global coverage and broadband connectivity. However, the limited frequency band and the coexistence of…

信息论 · 计算机科学 2024-05-03 Yunnuo Xu , Longfei Yin , Yijie Mao , Wonjae Shin , Bruno Clerckx

This paper investigates joint channel estimation and device activity detection in the LEO satellite-enabled grant-free random access systems with large differential delay and Doppler shift. In addition, the multiple-input multiple-output…

信息论 · 计算机科学 2022-08-04 Boxiao Shen , Yongpeng Wu , Wenjun Zhang , Geoffrey Ye Li , Jianping An , Chengwen Xing

This paper investigates joint device identification, channel estimation, and symbol detection for LEO satellite-enabled grant-free random access systems, specifically targeting scenarios where remote Internet-of-Things (IoT) devices operate…

信息论 · 计算机科学 2024-12-31 Boxiao Shen , Yongpeng Wu , Wenjun Zhang , Symeon Chatzinotas , Björn Ottersten

The advancement of wireless communication systems toward 5G and beyond is spurred by the demand for high data rates, exceedingly dependable low-latency communication, and extensive connectivity that aligns with sensing requisites such as…

信息论 · 计算机科学 2024-04-10 Mamady Delamou , El Mehdi Amhoud