Space exploration has been on the rise since the 1960s and Mars plays a significant role in
the history of space exploration. As the amount of data collected from science instruments …

In this paper, we derive accurate outage probability and bit error rate expressions for a high
altitude platform station (HAPS) assisted terrestrial communication system. In particular …

In optical communication systems, a laser is used as a light source to transmit information
using optical signals. However, as the speed of data transmission and the distance between …

In this paper, we propose a mixed radio frequency (RF)/free space optical (FSO) unmanned
aerial vehicle (UAV) communication system, based on modulating retro-reflector (MRR) and …

Optical communication modulation technology and networking technology are two important
technologies for constructing free-space optical (FSO) communication. In this paper, pulse …

In the recent decades, free-space optical (FSO) communication technology has gained
significant importance owing to its promising unique features: high user capacity, license …

When outer space becomes a war theater, there will be a substantial impact on all life on
Earth. There will be numerous consequences that will need to be limited and remedied …