International Conference on Emerging Technologies for Communications
920-MHz IoT platform via LEO satellite employing feeder-link MIMO technology
Fumihiro Yamashita, Daisuke Goto, Yasuyoshi Kojima, Munehiro Matsui, Kiyohiko Itokawa, Kento Yoshizawa, Kazumitsu Sakamoto, Yosuke Fujino, Chihaya Kato, Mitsuhiro Nakadai,
This paper proposes a 920-MHz IoT platform via a LEO satellite employing feeder-link MIMO technology. In this platform, the LEO satellite captures the IoT radio waves transmitted from terrestrial LPWA terminals onboard, then downlinks themto the base station when the LEO satellite passes over the base station. Since the received signals are directly digitalized as wave data, the amount of data stored is huge. To downlink this huge amount of data within the limited period in which the moving LEO satellite passes over the base station, we propose applying MIMO technology to the downlink from the LEO satellite to the base station.