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This paper introduces a novel line-of-sight (LoS) $\beta-\gamma$ terahertz (THz) channel model that closely mirrors physical reality by considering radiation trapping. Our channel model provides an exhaustive modeling of the physical…

Signal Processing · Electrical Eng. & Systems 2023-08-22 Anish Pradhan , J. Kartheek Devineni , Andreas F. Molisch , Harpreet S. Dhillon

We propose a novel method for aerial visual localization over low Level-of-Detail (LoD) city models. Previous wireframe-alignment-based method LoD-Loc has shown promising localization results leveraging LoD models. However, LoD-Loc mainly…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Juelin Zhu , Shuaibang Peng , Long Wang , Hanlin Tan , Yu Liu , Maojun Zhang , Shen Yan

In UAV-to-UAV communication, airborne UAVs need to detect the location and direction of ultra-high-speed millimeter-wave (mmWave) and Terahertz (THz) coverage areas, referred to as ultra-spots. This predictive capability allows UAVs to…

Systems and Control · Electrical Eng. & Systems 2026-05-26 Phuc Duc Nguyen , Ryosuke Isogai , Keitarou Kondou , Satoshi Yasuda , Nobuyasu Shiga , Yozo Shoji

Owning abundant bandwidth resource, the Terahertz (0.1-10 THz) band is a promising spectrum to support sixth-generation (6G) and beyond communications. As the foundation of channel study in the spectrum, channel measurement is ongoing in…

Information Theory · Computer Science 2022-11-22 Yiqin Wang , Yuanbo Li , Yi Chen , Ziming Yu , Chong Han

Unmanned Aerial Vehicles (UAVs) offer a promising solution for enhancing wireless connectivity and Quality of Service (QoS) in urban environments, acting as aerial Wi-Fi access points or cellular base stations. Their flexibility and rapid…

Networking and Internet Architecture · Computer Science 2026-03-10 Kamran Shafafi , Manuel Ricardo , Rui Campos

Wireless communications over Terahertz (THz)-band frequencies are vital enablers of ultra-high rate applications and services in sixth-generation (6G) networks. However, THz communications suffer from poor coverage because of inherent THz…

Information Theory · Computer Science 2021-09-07 Nour Kouzayha , Mustafa A. Kishk , Hadi Sarieddeen , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Unmanned aerial vehicle (UAV) has the advantages of large coverage and flexibility, which could be applied in disaster management to provide wireless services to the rescuers and victims. When UAVs forms an aerial mesh network,…

Robotics · Computer Science 2023-11-28 Zhiqing Wei , Jialin Zhu , Zijun Guo , Fan Ning

High-rate satellite communications among hundreds and even thousands of satellites deployed at low-Earth orbits (LEO) will be an important element of the forthcoming sixth-generation (6G) of wireless systems beyond 2030. With millimeter…

Networking and Internet Architecture · Computer Science 2024-10-28 Sergi Aliaga , Vitaly Petrov , Josep M. Jornet

Terahertz (THz) communications are envisioned as a promising technology for sixth-generation (6G) and beyond systems, owing to its unprecedented multi-gigahertz (GHz) bandwidth. In this paper, channel measurement campaigns in indoor…

Information Theory · Computer Science 2022-05-03 Yi Chen , Chong Han , Ziming Yu , Guangjian Wang

Terahertz communications are envisioned as a key enabler for 6G networks. The abundant spectrum available in such ultra high frequencies has the potential to increase network capacity to huge data rates. However, they are extremely affected…

Networking and Internet Architecture · Computer Science 2025-01-14 Pablo Fondo-Ferreiro , Cristina López-Bravo , Francisco Javier González-Castaño , Felipe Gil-Castiñeira , David Candal-Ventureira

Terahertz (THz) communications, with their substantial bandwidth, are essential for meeting the ultra-high data rate demands of emerging high-mobility scenarios such as vehicular-to-everything (V2X) networks. In these contexts, beamwidth…

Signal Processing · Electrical Eng. & Systems 2024-11-14 Wuhan Chen , Yuheng Fan , Chuang Yang , Mugen Peng

The Terahertz (THz) band (0.1-10 THz) has been envisioned as one of the promising spectrum bands for sixth-generation (6G) and beyond communications. In this paper, a dual-band angular-resolvable wideband channel measurement in an indoor…

Information Theory · Computer Science 2023-05-24 Yiqin Wang , Yuanbo Li , Chong Han , Yi Chen , Ziming Yu

In this paper, we study the joint 3D placement of unmanned aerial vehicles (UAVs) and UAVs-users association under bandwidth limitation and quality of service constraint. In particular, in order to allow to UAVs to dynamically improve their…

Signal Processing · Electrical Eng. & Systems 2018-10-30 Hajar El Hammouti , Mustapha Benjillali , Basem Shihada , Mohamed-Slim Alouini

Wireless access points on unmanned aerial vehicles (UAVs) are being considered for mobile service provisioning in commercial networks. To be able to efficiently use these devices in cellular networks it is necessary to first have a…

Networking and Internet Architecture · Computer Science 2018-01-22 Boris Galkin , Jacek Kibiłda , Luiz A. DaSilva

Leveraging higher frequencies up to THz band paves the way towards a faster network in the next generation of wireless communications. However, such shorter wavelengths are susceptible to higher scattering and path loss forcing the link to…

Signal Processing · Electrical Eng. & Systems 2021-10-04 Dileepa Marasinghe , Nandana Rajatheva , Matti Latva-aho

Next-generation wireless systems are rapidly evolving from communication-only systems to multi-modal systems with integrated sensing and communications. In this paper a novel joint sensing and communication framework is proposed for…

Information Theory · Computer Science 2021-11-30 Christina Chaccour , Walid Saad , Omid Semiari , Mehdi Bennis , Petar Popovski

Terahertz (THz) communications are regarded as a pillar technology for the sixth generation (6G) wireless systems, by offering multi-ten-GHz bandwidth. To overcome the short transmission distance and huge propagation loss, ultra-massive…

Information Theory · Computer Science 2021-10-06 Chong Han , Longfei Yan , Jinhong Yuan

This paper focuses on Point-to-Point LoRa connections. We report on coverage measurements performed in three distinct environments, i.e., coastal, forest and urban. Our field experiments demonstrate coverage up to 1 km with antennas at only…

Signal Processing · Electrical Eng. & Systems 2019-09-19 Gilles Callebaut , Guus Leenders , Chesney Buyle , Stijn Crul , Liesbet Van der Perre

Free-space optical (FSO) communication requires light of sight (LoS) between the transmitter and the receiver. For long-distance communication, many research projects have been conducted towards using a network composed of high-altitude…

Networking and Internet Architecture · Computer Science 2023-01-23 Dieu Linh Truong , The Ngoc Dang

Terahertz (0.1-10 THz) communications are envisioned as a key technology for sixth generation (6G) wireless systems. The study of underlying THz wireless propagation channels provides the foundations for the development of reliable THz…

Information Theory · Computer Science 2022-06-10 Chong Han , Yiqin Wang , Yuanbo Li , Yi Chen , Naveed A. Abbasi , Thomas Kürner , Andreas F. Molisch