Experiment of Wireless Transmission of Cloud Data in Cloud Avoidance Network for Optical Communications Between Space and Ground

Abstract

Optical communication links between space and ground will be disconnected by cloud blockages only based on optical site diversity, because of cloud blockages randomly changing in time and space. To continue the operation, cloud avoidance network with cloud observation from space and ground and network controls are necessary, however, optical ground stations will be often placed at remote sites without ground wired network. To realize continuous operation under such an environment, our cloud avoidance network is designed to extract and handle only minimum and meaningful information of clouds. The network experiment has been conducted on ground wired network and the operation possibility has been also verified on ground wireless network. In this paper, first, overview of our cloud avoidance network and structures of each equipment on the network, Next, operation possibility of our cloud avoidance network, even based on a low rate communication environment because of the unique system feature of handling only information required for the cloud avoidance network and then, the operation possibility based on the mobile wireless router verified through our experiment are presented.