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End-to-end latency in large low-Earth-orbit (LEO) constellations is dominated by propagation delay, making total delay roughly proportional to the network diameter, the longest shortest path in hops. Current inter-satellite link (ISL)…

Networking and Internet Architecture · Computer Science 2026-01-12 Arman Mollakhani , Jerayu Tiamraj , Shu-Jie Cao , Dongning Guo

Utilizing Low Earth Orbit (LEO) satellite networks equipped with Inter-Satellite Links (ISL) is envisioned to provide lower delay compared to traditional optical networks. However, LEO satellites have constrained energy resources as they…

Information Theory · Computer Science 2023-07-11 Kosta Dakic , Chiu Chun Chan , Bassel Al Homssi , Kandeepan Sithamparanathan , Akram Al-Hourani

We consider a Low Earth Orbit (LEO) satellite network with each satellite capable of establishing inter-satellite link (ISL) connections for satellite-to-satellite communication. Since ISLs can be reoriented to change the topology, we…

Networking and Internet Architecture · Computer Science 2025-06-16 Chirag Rao , Eytan Modiano

Inter-satellite links (ISLs) are adopted in global navigation satellite systems (GNSSs) for high-precision orbit determination and space-based end-to-end telemetry telecommand control and communications. Due to limited onboard ISL…

Systems and Control · Electrical Eng. & Systems 2021-03-25 Z. Yan , K. Zhao , W. Li , C. Kang , J. Zheng , H. Yang , S. Du

Low Earth Orbit (LEO) satellite networks are rapidly gaining traction today. Although several real-world deployments exist, our preliminary analysis of LEO topology performance with the soon-to-be operational Inter-Satellite Links (ISLs)…

Networking and Internet Architecture · Computer Science 2024-09-12 Wenyi Zhang , Zihan Xu , Sangeetha Abdu Jyothi

Low Earth orbit (LEO) satellite mega constellations are beginning to include laser inter-satellite links (LISLs) to extend the Internet to the most remote locations on Earth. Since the process of establishing these links incurs a setup…

Networking and Internet Architecture · Computer Science 2024-06-05 Dhiraj Bhattacharjee , Pablo G. Madoery , Aizaz U. Chaudhry , Halim Yanikomeroglu , Gunes Karabulut Kurt , Peng Hu , Khaled Ahmed , Stephane Martel

Low-Earth orbit (LEO) mega-constellations are emerging as high-capacity backbones for next-generation Internet. Deployment of laser terminals enables high-bandwidth, low-latency inter-satellite links (ISLs); however, their limited number,…

Networking and Internet Architecture · Computer Science 2026-04-22 Shayan Hamidi Dehshali , Tzu-Hsuan Liao , Shaileshh Bojja Venkatakrishnan

The performance of large-scale Low-Earth-Orbit (LEO) networks, which consist of thousands of satellites interconnected by optical links, is dependent on its network topology. Existing topology designs often assume idealized conditions and…

Networking and Internet Architecture · Computer Science 2026-02-10 Muaz Ali , Beichuan Zhang

In this paper, the routing in massive low earth orbit (LEO) satellite networks is studied. When the satellite-to-satellite communication distance is limited, we choose different relay satellites to minimize the latency in a constellation at…

Networking and Internet Architecture · Computer Science 2022-04-11 Ruibo Wang , Mustafa A. Kishk , Mohamed-Slim Alouini

Low Earth orbit (LEO) mega-constellations rely on inter-satellite links (ISLs) to provide global connectivity. We note that in addition to the general constellation parameters, the ISL spanning patterns are also greatly influence the final…

Networking and Internet Architecture · Computer Science 2023-12-27 Xiangtong Wang , Xiaodong Han , Menglong Yang , Chuan Xing , Yuqi Wang , Songchen Han , Wei Li

Dense constellations of Low Earth Orbit (LEO) small satellites are envisioned to make extensive use of the inter-satellite link (ISL). Within the same orbital plane, the inter-satellite distances are preserved and the links are rather…

Information Theory · Computer Science 2019-08-08 Beatriz Soret , Israel Leyva-Mayorga , Petar Popovski

Low Earth Orbit (LEO) satellite constellations combine great flexibility and global coverage with short propagation delays when compared to satellites deployed in higher orbits. However, the fast movement of the individual satellites makes…

Networking and Internet Architecture · Computer Science 2021-12-02 Jonas W. Rabjerg , Israel Leyva-Mayorga , Beatriz Soret , Petar Popovski

This paper investigates energy-efficient inter-satellite communication in Low Earth Orbit (LEO) networks, where satellites exchange both buffered and newly generated data through half-duplex inter-satellite links (ISLs). Due to orbital…

Signal Processing · Electrical Eng. & Systems 2026-03-18 Yomali Lokugama , Charith Dissanayake , Saman Atapattu , Kandeepan Sithamparanathan

With numerous ongoing deployments owned by private companies and startups, dense satellite constellations deployed in low Earth orbit (LEO) will play a major role in the near future of wireless communications. In addition, the 3rd…

Networking and Internet Architecture · Computer Science 2021-01-12 Israel Leyva-Mayorga , Beatriz Soret , Petar Popovski

Today's Low Earth Orbit (LEO) satellite networks, exemplified by SpaceX's Starlink, play a crucial role in delivering global internet access to millions of users. However, managing the dynamic and expansive nature of these networks poses…

Networking and Internet Architecture · Computer Science 2025-01-24 Dara Ron , Faisal Ahmed Yusufzai , Sebastian Kwakye , Satyaki Roy , Nishanth Sastry , Vijay K. Shah

Laser inter-satellite links (LISLs) are envisioned between satellites in upcoming satellite constellations, such as Phase I of SpaceX's Starlink. Within a constellation, satellites can establish LISLs with other satellites in the same…

Signal Processing · Electrical Eng. & Systems 2021-03-02 Aizaz U. Chaudhry , Halim Yanikomeroglu

In recent years, LEO satellite constellations have become envisioned as a core component of the next-generation wireless communication networks. The successive establishment of mega satellite constellations has triggered further demands for…

Networking and Internet Architecture · Computer Science 2023-12-27 Ruibo Wang , Mustafa A. Kishk , Mohamed-Slim Alouini

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

Multi-layer ultra-dense satellite networks (MLUDSNs) have soared this meteoric to provide vast throughputd for globally diverse services. Differing from traditional monolayer constellations, MLUDSNs emphasize the spatial integration among…

Networking and Internet Architecture · Computer Science 2023-12-29 Qi Hao , Di Zhou , Min Sheng , Yan Shi , Jiandong Li

Low Earth orbit (LEO) mega-constellations greatly extend the coverage and resilience of future wireless systems. Within the mega-constellations, laser inter-satellite links (LISLs) enable high-capacity, long-range connectivity. Existing…

Signal Processing · Electrical Eng. & Systems 2026-01-30 Zhouyou Gu , Jihong Park , Jinho Choi
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