Non-Terrestrial Networks

Non-terrestrial Networks leverage the vast expanse of space to transmit data, voice, and multimedia content with unprecedented speed, reliability, and coverage. Whether facilitating international phone calls, enabling high-speed internet access in remote areas, or delivering real-time data for scientific research, satellites have revolutionized the way we communicate and interact with the world.

The physical layer encompasses the transmission medium through which signals propagate, including the vacuum of space itself and the electromagnetic spectrum that serves as the carrier wave for communication signals. Engineers must grapple with a myriad of factors, such as signal attenuation, interference, and noise, in order to ensure that data reaches its destination intact and without delay.

Recent publications

• M. Lee, S. Kim, M. Kim, D. Jung, J. Choi*, "Analyzing Downlink Coverage in Clustered Low Earth Orbit Satellite Constellations: A Stochastic Geometry Approach," submitted to IEEE Transactions on Communications (TCOM), Jan. 2024. [arXiv]

• D. Jung, H. Nam, J. Choi*, and D. J. Love, "Modeling and Analysis of GEO Satellite Networks," submitted to IEEE Transactions on Wireless Communications (TWC), Dec. 2023. [arXiv]

• D. Jung, J. Ryu, and J. Choi*, "Satellite Clustering for Non-Terrestrial Networks: Orbital Configuration-Dependent Outage Analysis," accepted to IEEE Wireless Communications Letters (WCL), Nov. 2023.

• D. Jung, G. Im, J. Ryu, S. Park, H. Yu, and J. Choi*, "Satellite Clustering for Non-Terrestrial Networks: Concept, Architectures, and Applications," IEEE Vehicular Technology Magazine (VTM), vol. 18, no. 3, pp. 29-37, Sep. 2023.