Impact of user distribution on optical wireless systems

05/04/2020
by   Khulood D. Alazwary, et al.
0

In this paper, we investigate the impact of user distribution on resource allocation in visible light communication (VLC) systems, using a wavelength division multiple access (WDMA) scheme. Two different room layouts are examined in this study. Three 10-user scenarios are considered, while an optical angle diversity receiver (ADR) with four faces is used. A mixed-integer linear programming (MILP) model is utilized to identify the optimum wavelengths and access point (AP) allocation in each scenario. The results show that a change in user distribution can affect the level of channel bandwidth and SINR. However, a uniform distribution of users in the room can provide a higher channel bandwidth as well as high SINR above the threshold (15.6 dB) for all users compared to clustered users, which is a scenario that has the lowest SINR with supported data rate above 3.2 Gbps.

READ FULL TEXT
04/19/2020

Resource Allocation in Co-existing Optical Wireless HetNets

In multi-user optical wireless communication (OWC) systems interference ...
07/22/2019

Networking and processing in optical wireless

Optical wireless communication (OWC) is a promising technology that can ...
02/10/2021

Resilient Architectures for Free Space Optical Wireless Interconnection Systems

In this paper, we propose the use of two Passive Optical Network (PON)-b...
05/05/2020

NOMA Visible Light Communication System with Angle Diversity Receivers

In this paper, a non-orthogonal multiple access (NOMA) visible light com...
04/09/2019

TDM/WDM over AWGR Based Passive Optical Network Data Centre Architecture

Passive Optical Data Centre Networks have been developed due to the perf...
04/23/2020

Beam Blockage in Optical Wireless Systems

In this paper, we use the percentage blockage as a metric when an opaque...
06/21/2021

Reinforcement Learning for Resource Allocation in Steerable Laser-based Optical Wireless Systems

Vertical Cavity Surface Emitting Lasers (VCSELs) have demonstrated suita...