Page 82 - Reference framework for integrated management of an SSC - A U4SSC deliverable on city platforms

Figure 24: Generic Smart City Communications& connectivity Architecture

5.5.1 City Core Network

The Core Network is composed of the communications infrastructure inside corporate buildings
(local voice and data infrastructure), the connections between them to share municipal ITC resources
and the capillary network that enables the connection of IoT devices. This can provide common
services to officials regardless of their physical location, for example, telephone services, access
to application servers in municipal data processing centres, access to video surveillance cameras,
traffic light control systems, public lighting controller centres, and more.

The interconnection between buildings generally requires high bandwidth and protection
mechanisms in case of failure for those buildings of critical availability. This interconnection
network can be offered in service mode by telecommunication operators through fibre-optic
interconnections; for example, ITU-T G.709 or by using technologies based on Metro-Ethernet
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standards or GPON that provide added value to connectivity such as automatic protection
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against link failure, quality of service guarantees and centralized management.

Alternatively, and for strategic or cost reasons, cities can build their own network of the interconnection
of buildings at a very competitive cost compared with other available options since they have

68 Reference framework for integrated management of an SSC | June 2023