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Quantum key distribution (QKD) is a family of protocols for growing a private encryption key between two parties. Despite much progress, all ground-based QKD approaches have a distance limit due to atmospheric losses or in-fibre…

Quantum Physics · Physics 2017-08-28 Robert Bedington , Juan Miguel Arrazola , Alexander Ling

In this paper, we investigate the optimization of global quantum communication through satellite constellations. We address the challenge of quantum key distribution (QKD) across vast distances and the limitations posed by terrestrial…

Quantum Physics · Physics 2025-01-03 Yichen Gao , Guanqun Song , Ting Zhu

As one of the most promising hotspots in the 6G era, space remote sensing information networks play a key and irreplaceable role in areas such as emergency response and scientific research, and are expected to foster remote sensing data…

Networking and Internet Architecture · Computer Science 2026-03-31 Linling Kuang , Jiachen Sun , Jin Zhang , Huanxi Cui , Kai Liu

We describe systems and methods for the deployment of global quantum key distribution (QKD) networks covering transoceanic, long-haul, metro, and access segments of the network. A comparative study of the state-of-the-art QKD technologies…

Quantum Physics · Physics 2021-03-01 Jing Wang , Bernardo Huberman

Quantum communication has seen rapid progress towards practical large-scale networks, with quantum key distribution (QKD) spearheading this development. While fibre based systems have been shown to be well suited for metropolitan scales,…

Pre-shared keys (PSK) have been widely used in network security. Nonetheless, existing PSK solutions are not scalable. Moreover, whenever a new user joins a network, PSK requires an existing user to get a new key before they are able to…

Cryptography and Security · Computer Science 2024-11-26 Jie Lin , Hoi-Kwong Lo , Jacob Johannsson , Mattia Montagna , Manfred von Willich

The 3GPP 5G Service-based Architecture (SBA) security specifications leave several details on how to setup an appropriate Public Key Infrastructure (PKI) for 5G SBA, unspecified. In this work, we propose 5G-SBA-PKI, a public key…

Cryptography and Security · Computer Science 2023-09-27 Ayush Kumar , Vrizlynn L. L. Thing

Radio spectrum is a high-demand finite resource. To meet growing demands of data throughput for forthcoming and deployed wireless networks, new wireless technologies must operate in shared spectrum over unlicensed bands (coexist). As an…

Signal Processing · Electrical Eng. & Systems 2022-06-02 Zachary Grey , Susanna Mosleh , Jacob Rezac , Yao Ma , Jason Coder , Andrew Dienstfrey

With the rapid evolution of the Industrial Internet of Things (IIoT), the boundaries and scale of the Internet are continuously expanding. Consequently, the limitations of traditional certificate-based Public Key Infrastructure (PKI) have…

Cryptography and Security · Computer Science 2026-03-27 Penghui Liu , Yi Niu , Xiaoxiong Zhong , Jiahui Wu , Weizhe Zhang , Kaiping Xue , Bin Xiao

Although a significant number satellites are deemed essential for facilitating diverse applications of satellite networks, aerial platforms are emerging as excellent alternatives for enabling reliable communications with fewer satellites.…

Information Theory · Computer Science 2024-12-02 Chang-Sik Choi

Satellite networks are emerging as vital solutions for global connectivity beyond 5G. As companies such as SpaceX, OneWeb, and Amazon are poised to launch a large number of satellites in low Earth orbit, the heightened inter-satellite…

Signal Processing · Electrical Eng. & Systems 2025-04-22 Miyeon Lee , Sucheol Kim , Minje Kim , Dong-Hyun Jung , Junil Choi

Within a trust infrastructure, a private key is often used to digitally sign a transaction, which can be verified with an associated public key. Using PKI (Public Key Infrastructure), a trusted entity can produce a digital signature,…

Cryptography and Security · Computer Science 2023-10-11 Sam Grierson , William J Buchanan , Craig Thomson , Baraq Ghaleb , Leandros Maglaras , Chris Eckl

Peer-to-peer (P2P) networks establish loosely coupled application-level overlays on top of the Internet to facilitate efficient sharing of resources. It can be roughly classified as either structured or unstructured networks. Without…

Networking and Internet Architecture · Computer Science 2010-06-24 R. Anusuya , V. Kavitha , E. Golden Julie

With the construction of low-earth orbit (LEO) satellite constellations, ubiquitous connectivity has been achieved. Terrestrial networks (TNs), such as cellular networks, are mainly deployed in specific urban areas and use licensed…

Signal Processing · Electrical Eng. & Systems 2025-09-12 Bodong Shang , Zheng Wang , Xiangyu Li , Chungang Yang , Chao Ren , Haijun Zhang

Security in Wireless Sensor Networks (WSN) can be achieved by establishing shared keys among the neighbor sensor nodes to create secure communication links. The protocol to be used for such a pairwise key establishment is a key factor…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-12-19 Özgür Sağlam , Mehmet Emin Dalkiliç

The accelerated pace of space exploration and satellite connectivity calls for scalable communication network architectures that can effectively cater for increasing numbers of bursty flows, such as those occurring in remote monitoring and…

Networking and Internet Architecture · Computer Science 2024-09-24 Elif Uysal

Vehicular networks are used to coordinate actions among vehicles in traffic by the use of wireless transceivers (pairs of transmitters and receivers). Unfortunately, the wireless communication among vehicles is vulnerable to security…

Cryptography and Security · Computer Science 2015-07-17 Shlomi Dolev , Łukasz Krzywiecki , Nisha Panwar , Michael Segal

Robotic prospecting for critical resources on the Moon, such as ilmenite, rare earth elements, and water ice, requires robust exploration methods given the diverse terrain and harsh environmental conditions. Although numerous analog field…

The National Research Platform (NRP) represents a distributed, multi-tenant Kubernetes-based cyberinfrastructure designed to facilitate collaborative scientific computing. Spanning over 75 locations in the U.S. and internationally, the NRP…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-05-30 Derek Weitzel , Ashton Graves , Sam Albin , Huijun Zhu , Frank Würthwein , Mahidhar Tatineni , Dmitry Mishin , John Graham , Elham E Khoda , Mohammad Firas Sada , Larry Smarr , Thomas DeFanti

Low Earth orbit (LEO) satellites have been envisioned as a significant component of the sixth generation (6G) network architecture for achieving ubiquitous coverage and seamless access. However, the implementation of LEO satellites is…

Information Theory · Computer Science 2024-06-10 Chenyu Wu , Shuai Han , Qian Chen , Yu Wang , Weixiao Meng , Abderrahim Benslimane