Abstract
Street lighting characterizes many smart city initiatives around the world. In fact, significant savings can be achieved by not only replacing traditional luminaires with low-power LEDs, but also providing streetlights with smart light controllers and network connectivity, allowing the introduction of a sensible light intensity management and reduction of maintenance costs. Moreover, if designed with a far-looking view, smart lighting infrastructure could also support city-wide Internet of Things services, becoming key enablers of the smart city revolution, also in the 5G perspective. In this paper, we provide a thorough discussion on network architectures and communication technologies that could be adopted for smart public lighting applications, showing their benefits and downsides. Starting with significant activity on research, implementation and in-field testing, we also outline the steps required for the deployment of a smart public lighting infrastructure, each discussed in accordance with the network topology considered. Finally, we introduce some additional services that a smart public lighting infrastructure could support and discuss the benefits that would arise from integration with the upcoming 5G cellular network.
Highlights
As the world population grows at an ever-faster pace, with the majority of people living in urban areas, the idea of creating a more livable and sustainable city is becoming increasingly important.Projections show that by 2030 there will be more than 41 mega-cities worldwide, with a significant increase with respect to the current 28 mega-cities
A key role will be played by Information and Communication Technologies (ICTs), which have created new opportunities to improve the quality of life in urban areas with intelligent and energetically efficient solutions
Since each smart streetlight needs to be provided with bidirectional communication capabilities, an ubiquitous city-wide communication network arises from the lighting infrastructure, reaching every location where a smart light fixture is present
Summary
As the world population grows at an ever-faster pace, with the majority of people living in urban areas, the idea of creating a more livable and sustainable city is becoming increasingly important.Projections show that by 2030 there will be more than 41 mega-cities worldwide (with more than10 M people each), with a significant increase with respect to the current 28 mega-cities. As the world population grows at an ever-faster pace, with the majority of people living in urban areas, the idea of creating a more livable and sustainable city is becoming increasingly important. ICTs, through wireless communications and the Internet of Things (IoT) paradigm, will be transforming traditional cities into smart cities, providing the core infrastructure behind more efficient public services. This process has already started: in early 2018, China had about 500 smart city pilot projects [4], the highest in the world, and over 1000 smart city pilot projects were ready or under construction worldwide
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