Outage capacity and throughput analysis of multiuser FSO systems

In this paper, we investigate the performance of free space optical (FSO) systems with a multiuser scheme employing select-max scheduling technique. Specifically, we consider an FSO communication system which employs a central node equipped with N transmit apertures, each of which aimed to any of the users. Under the assumption of log-normal turbulence channels, we derive closed-form outage capacity and outage throughput expressions for the FSO communication system and demonstrate the effect of the outage probability, number of users and average signal-to-noise ratio on the system performance.