Impact of Multiple Shadows on Visible Light Communication Channel
Tang Tang, Tao Shang, Qian Li
Abstract
This letter investigates the impact of multiple shadows for indoor visible light communication (VLC) systems composed of a VLC access point and multiple terminals. The blockage is a crucial problem in the VLC system, which would result in great deterioration of users' communication quality due to the shadow area caused by the blockage. Considering the room boundaries and overlap between shadows, we derive the mathematical expressions of the shadow area and position. In the simulation part, the effect of multiple shadows on throughput and outage performance is appraised. Furthermore, we also take the effect of the room size into account.
Topics & Concepts
Visible light communicationComputer scienceShadow (psychology)Shadow mappingChannel (broadcasting)ThroughputPosition (finance)Point (geometry)WirelessTelecommunicationsComputer networkReal-time computingComputer visionOpticsLight-emitting diodePhysicsMathematicsGeometryPsychotherapistEconomicsPsychologyFinanceOptical Wireless Communication TechnologiesSmart Parking Systems ResearchImpact of Light on Environment and Health