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LEO Satellite Constellation for Internet of Things

open access: yesIEEE Access, 2017
Internet of Things (IoT) is one of the evolutionary directions of the Internet. This paper focuses on the low earth orbit (LEO) satellite constellation-based IoT services for their irreplaceable functions.
Zhicheng Qu, Haotong Cao
exaly   +4 more sources

Optimal Walker Constellation Design of LEO-Based Global Navigation and Augmentation System

open access: yesRemote Sensing, 2020
Low Earth orbit (LEO) satellites located at altitudes of 500 km~1500 km can carry much stronger signals and move faster than medium Earth orbit (MEO) satellites at about a 20,000 km altitude.
Tianhe Xu, Fan Gao, Wenfeng Nie
exaly   +3 more sources

Impacts of Orbital and Constellation Parameters on the Number and Spatiotemporal Coverage of LEO-LEO Occultation Events

open access: yesRemote Sensing, 2021
The development of small-satellite technologies allows the low Earth orbit intersatellite link (LEO-LEO) occultation method to observe the Earth’s atmosphere with global coverage and acceptable costs using electromagnetic signals, in which the L/X/K/M ...
Gottfried Kirchengast   +2 more
exaly   +3 more sources

Research on Design and Staged Deployment of LEO Navigation Constellation for MEO Navigation Satellite Failure

open access: yesRemote Sensing
Low Earth orbit (LEO) satellites have unique advantages in navigation because of their high signal intensity and rapid geometric changes in a short period.
Wen Xue   +4 more
exaly   +3 more sources

Hierarchical Resource Management for Mega-LEO Satellite Constellation. [PDF]

open access: yesSensors (Basel)
The mega-low Earth orbit (LEO) satellite constellation is pivotal for the future of satellite Internet and 6G networks. In the mega-LEO satellite constellation system (MLSCS), which is the spatial distribution of satellites, global users, and their services, along with the utilization of global spectrum resources, significantly impacts resource ...
Gou L   +6 more
europepmc   +4 more sources

Analytical design and performance analysis of LEO mega chain satellite constellation

open access: yesXibei Gongye Daxue Xuebao, 2022
With the development of microsatellite technology and the growth of ground reconnaissance demand, the rapid design of a LEO constellation with minimum satellite number, low revisit time (within 10 minutes), and permanent inter-satellite links has become ...
ZHENG Pengfei, CHEN Hongyu, GUO Chongbin
doaj   +1 more source

Capacity Analysis of LEO Mega-Constellation Networks [PDF]

open access: yesIEEE Access, 2022
This paper proposes a complete network capacity analysis framework for low-earth-orbit (LEO) mega-constellations, where a network capacity estimation problem considering the link packet loss rate is formulated with the support of a time-variant network topology model and a task distribution model. This problem is solved in two steps.
Ningyuan Wang   +4 more
openaire   +2 more sources

Study on Satellite Constellation Spare Strategy Based on Markov Process

open access: yesHangkong gongcheng jinzhan, 2022
In response to the issue of reducing satellite constellation backup costs while meeting constellation availability target,it is the hot issue in current research.In this paper,the impact of different spare strategies on the performance of a low earth ...
LUO Tiansu   +4 more
doaj   +1 more source

Cost-Efficient LEO Navigation Augmentation Constellation Design under a Constrained Deployment Approach

open access: yesInternational Journal of Aerospace Engineering, 2021
The advantages of the Low Earth Orbit (LEO) satellite include low-latency communications, shorter positioning time, higher positioning accuracy, and lower launching, building, and maintenance costs.
Jing Ren   +4 more
doaj   +1 more source

Design and Evaluation of Reconfigurable SDN LEO Constellations [PDF]

open access: yesIEEE Transactions on Network and Service Management, 2020
In the context of the 5G ecosystem, the integration between the terrestrial and satellite networks is envisioned as a potential approach to further enhance the network capabilities. In light of this integration, the satellite community is revisiting its role in the next generation 5G networks.
Arled Papa   +5 more
openaire   +2 more sources

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