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Current trends in the space industry are shifting from Medium Earth Orbit (MEO) to Low Earth Orbit (LEO) constellations due to the cost-efficient launching capabilities and the feasibility of using COTS-based HW resources. Several LEO systems currently offer a wide range of services, ranging from broadband connectivity (e.g., Iridium, OneWeb, and Starlink) to the Internet of Things (IoT) applications (e.g., Hiber, Myriota, etc.). With the LEO constellation becoming popular, the scientific community is also exploring ways to maximize the use of LEO constellations for satellite-based positioning.
Sharma et al. (Wed,) studied this question.