IEEE Consumer Electronics Magazine - July 2018 - 57
become inapplicable when providing newly emerging services. In this section, we propose DistArch-SCNet, the new network architecture for smart cities that meets the requirement
of designing a scalable, distributed, secure, and efficient network to meet the new service requirements.
First coined by Harald Haas,
Li-Fi is a form of visible light
communication that uses
light-emitting diodes as a
medium of communication.
Design Overview
DistArch-SCNet adopts an efficient, distributed, and scalable
smart-city architecture by integrating Li-Fi and blockchain
techniques to improve energy efficiency, security, scalability,
and availability without the need for a centralized control
system. First coined by Harald Haas [8], Li-Fi is a form of
visible light communication (VLC) that uses light-emitting
diodes (LEDs) as a medium of communication. On the other
hand, the blockchain technique operates in a peer-to-peer distributed manner and achieves the same features in a verifiable
manner without the need for a centralized authority [9], [10].
Figure 1 presents an overview of the proposed smart-city
architecture, wherein all of the different environments are
empowered by various energy-harvesting techniques. In an
indoor environment, there are two types of peripherals that
require data transmissions, e.g., as smart devices, sensors, and
users' data devices. To provide efficient control and data
rates for the users' data or smart environment devices, we
Smart City
Distributed Blockchain Network Infrastructure
Third-Party
Cloud
Energy-HarvestingPowered Nodes
Li-Fi-Enabled
Gateway
Communication
Via Li-Fi and Wi-Fi
Communication
Via Li-Fi and Wi-Fi
Communication
Via Li-Fi and Wi-Fi
Communication
Via Li-Fi and Wi-Fi
Communication
Via Li-Fi and Wi-Fi
Smart Homes
Smart Industries
Smart Hospitals
Smart Transports
Smart Retailers
Sources of Energy Harvesting
Solar
Energy
Wireless
Transfer
Energy
Infrared
Radiator
Thermal
Energy
Kinetic
Energy
figurE 1. An overview of DistArch-SCNet architecture.
july 2018
^
IEEE Consumer Electronics Magazine
57
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