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Next-generation communication networks are expected to integrate newly-used technologies in a smart way to ensure continuous connectivity in rural areas and to alleviate the traffic load in dense regions. The prospective access network in…

Signal Processing · Electrical Eng. & Systems 2020-04-16 Wiem Abderrahim , Osama Amin , Mohamed-Slim Alouini , Basem Shihada

The integration of non-terrestrial networks (NTN) into 5G new radio (NR) enables a new class of positioning capabilities based on cellular signals transmitted by Low-Earth Orbit (LEO) satellites. In this paper, we investigate joint…

Recently, location-based services (LBS) have steered attention to indoor positioning systems (IPS). WLAN-based IPSs relying on received signal strength (RSS) measurements such as fingerprinting are gaining popularity due to proven high…

Networking and Internet Architecture · Computer Science 2019-07-02 Erick Schmidt , David Akopian

As humanity aspires to explore the solar system and investigate distant worlds such as the Moon, Mars, and beyond, there is a growing need to establish and broaden coordinate time references that depend on the rate of standard clocks.…

General Relativity and Quantum Cosmology · Physics 2024-02-20 Neil Ashby , Bijunath Patla

Clock synchronization is the backbone of applications such as high-accuracy satellite navigation, geolocation, space-based interferometry, and cryptographic communication systems. The high accuracy of synchronization needed over…

General Relativity and Quantum Cosmology · Physics 2011-06-10 Thomas B. Bahder

Location tracking with global navigation satellite systems (GNSS), such as the GPS, is used in many applications, including the tracking of wild animals for research. Snapshot GNSS is a technique that only requires milliseconds of satellite…

Systems and Control · Electrical Eng. & Systems 2023-02-15 Jonas Beuchert , Amanda Matthes , Alex Rogers

In recent years, Low Earth Orbit (LEO) satellites have witnessed rapid development, with inference based on Deep Neural Network (DNN) models emerging as the prevailing technology for remote sensing satellite image recognition. However, the…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-11-23 Yijie Chen , Qiyang Zhang , Yiran Zhang , Xiao Ma , Ao Zhou

LoRaWAN has garnered tremendous attention owing to the low power consumption of end nodes, long range, high resistance to multipath, low cost, and use of license-free sub-GHz bands. Consequently, LoRaWAN is gradually replacing Wi-Fi and…

Networking and Internet Architecture · Computer Science 2021-08-02 Ruthwik Muppala

In the coming smart ocean era, reliable and efficient communications are crucial for promoting a variety of maritime activities. Current maritime communication networks (MCNs) mainly rely on marine satellites and on-shore base stations…

Information Theory · Computer Science 2021-06-29 Yanmin Wang , Wei Feng , Jue Wang , Tony Q. S. Quek

Clock synchronization between the ground and satellites is a fundamental issue in future quantum telecommunication, navigation, and global positioning systems. Here, we propose a scheme of near-Earth orbit satellite-based quantum clock…

Quantum Physics · Physics 2016-03-08 Jieci Wang , Zehua Tian , Jiliang Jing , Heng Fan

Many new narrowband low-power wide-area networks (LPWANs) (e.g., LoRaWAN, Sigfox) have opted to use pure ALOHA-like access for its reduced control overhead and asynchronous transmissions. Although asynchronous access reduces the energy…

Information Theory · Computer Science 2021-01-20 Luca Beltramelli , Aamir Mahmood , Paolo Ferrari , Patrik Österberg , Mikael Gidlund , Emiliano Sisinni

The Radio wave Observations at the Lunar Surface of the photoElectron Sheath (ROLSES) instrument is a radio telescope system designed to characterize the radio and plasma wave environment of the nearside lunar surface at frequencies between…

CubeSats and small satellites are emerging as low-cost tools for performing science and exploration in deep space. These new classes of satellite exploit the latest advancement in miniaturization of electronics, power systems, and…

Instrumentation and Methods for Astrophysics · Physics 2017-01-31 Stephen R. Schwartz , Shota Ichikawa , Pranay Gankidi , Nalik Kenia , Graham Dektorand Jekan Thangavelautham

This paper presents almanac and ephemeris message representation for lunar navigation satellites supporting the Lunar Augmented Navigation System (LANS). The proposed method combines osculating orbital elements, Chebyshev polynomials, and…

Instrumentation and Methods for Astrophysics · Physics 2026-02-18 Keidai Iiyama , Grace Gao

An efficient characterization of scientifically significant locations is essential prior to the return of humans to the Moon. The highest resolution imagery acquired from orbit of south-polar shadowed regions and other relevant locations…

This paper presents a novel 3D myopic coverage path planning algorithm for lunar micro-rovers that can explore unknown environments with limited sensing and computational capabilities. The algorithm expands upon traditional non-graph path…

Robotics · Computer Science 2024-04-30 Shreya Santra , Kentaro Uno , Gen Kudo , Kazuya Yoshida

The resurgence of lunar operations requires advancements in cislunar navigation and Space Situational Awareness (SSA). Challenges associated to these tasks have created an interest in autonomous planning, navigation, and tracking…

Robotics · Computer Science 2024-09-02 Trevor N. Wolf , Brandon A. Jones

The Lunar Laser Ranging (LLR) experiment provides precise observations of the lunar orbit that contribute to a wide range of science investigations. In particular, time series of highly accurate measurements of the distance between the…

General Relativity and Quantum Cosmology · Physics 2012-08-17 James G. Williams , Slava G. Turyshev , Dale Boggs

In this contribution, we propose a GNSS/INS ultra-tight coupling in which the GNSS receiver architecture is based on a vector tracking loop type architecture. In the proposed approach, the phase lock loop bandwidth is adapted according to…

Signal Processing · Electrical Eng. & Systems 2026-01-26 Gaël Pages , Priot Benoît , Guillaume Beaugendre

The Lunar Laser Ranging (LLR) experiment has accumulated 50 years of range data of improving accuracy from ground stations to the laser retroreflector arrays (LRAs) on the lunar surface. The upcoming decade offers several opportunities to…

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