Service & Content Providers’ Perspective of Smart Cities -How to enrich citizen experience using a pervasive urban SDN connectivity environment, Ramon Casellas

1. Smart Cities, IoT, SDN, 5G Networks, Cloud
Computing…
Managing Complexity with SDN Orchestration
Service & Content Providers’ Perspective of Smart Cities - How to enrich citizen
experience using a pervasive urban SDN connectivity environment
Ramon Casellas, Ricard Vilalta, Raül Muñoz and Ricardo Martínez
The Software Defined Network – Programmable City Workshop - Bristol

2. The Software Defined Network – Programmable City Workshop – BiO/ONF 2015/07/07
Introduction: Smart cities & IoT
 Smart city  Monitors critical infrastructures, optimizes resources, plans maintenance, offers services to citizens
and users.
 50 billion devices expected to connect to the Internet by 2020 [Cisco, 2013]
 Complexity management of monitoring, real-time data evaluation, …
 Enhance/Automate decision-making?
 Key elements:
 Sensors/actuators (monitoring functionality, large amount of data flows)
 Network (dynamic, large bandwidth)
 Cloud (centralized approach) / Fog (distributed approach – end-user proximity)
 Key requirements:
 More agile IoT to accommodate the increased amount of transmitted data along with the expansion of connected devices
 Flexible/elastic, dynamically adapting and large bandwidth network to connect sensors-to-cloud, cloud-to-cloud and multiple
end-users
 High-capacity, fast processing, low latency to ensure quality of service and quality of experience
http://smartcity.bcn.cat

3. The Software Defined Network – Programmable City Workshop – BiO/ONF 2015/07/07
Take-away message 1:
Underlying Infrastructure to be complex & heterogeneous
 To support new advanced city services and satisfactory user experience, the
underlying communications infrastructure needs to evolve, grow and adapt,
resulting in heterogeneous technologies (both at the data and control plane).
 5G and beyond networks: 4G / 5G / mmWave /…
 Net & Functions Virtualization, Fog & Cloud computing (local/remote processing)…
 This network complexity needs to be managed
3
VNF
InstancesvEPC
VNF
Instances
Edge DC
(NFVI-PoP)
Core DC
(NFVI-POP)
Access Aggregation Core
RAN & Wireless Backhaul
(3G/LTE, Wi-FI)
LTE
Phy
LTE
stack
Metro DC
(NFVI-PoP)
VNF
Instances
Radio Access
Network
(3G/LTE)
Wireless (Wifi,
Bluetooth, etc)

4. The Software Defined Network – Programmable City Workshop – BiO/ONF 2015/07/07
Take-away message 2:
Programmable optical technologies still much relevant
 The optical technology still well positioned in view of latency / jitter and bandwidth
requirements  Core of the infrastructure to support heterogeneous services.
 Growth at the Data Center (Optical Interconnects) and Software Defined Optical
Transmission  Flexible data plane supporting elastic, dynamic and reconfigurable
optical networks with scalable, power/cost efficient, and reliable technologies.
4
Electric
chargers
Air
quality
Noise
levels
Bikes
parking
Video
surveillance
Smart
vehicles
Car
parking

5. The Software Defined Network – Programmable City Workshop – BiO/ONF 2015/07/07
Take-away message 3:
Integration of SDN in a “CityOS” environment
 A “SmartCityOS” platform can no longer rely on quasi-static network provisioning and will benefit from
network visibility & control and SDN principles. The re-configurability of the underlying networks
needs to be part of the “ToolBox” and “SystemCalls”
 Unpredictability of traffic (bandwidth a scarce resource with latency requirements), dynamic management of services
 Network Evolution for Smart City Services:
 Infrastructure  From a model of vertical (separated) networks for services to a convergent network model of
supporting diverse services and the implementation of new ones
 Control  SDN principles -- IoT Gateways (GW) and other network elements becoming SDN-enabled in order
to reduce operational and maintenance expenditures of the network.
5
Social impact and
Citizenship
Services
Platform
Network
Council Corporate
Network
(Fiber, WiFi, …)
Operators’
Network
(xDSL, GPRS, UMTS,…)
Sensors and
Actuators
Aggregation and Transport
Network
S/A
Wireless
Access Networks
Opportunities
for SDN
Platform

6. The Software Defined Network – Programmable City Workshop – BiO/ONF 2015/07/07
Take-away message 4:
The need to orchestrate heterogeneity
 It is not reasonable to assume a single “God” SDN controller controlling such
complexity, and we will need to manage vendor islands and segmentation
 Scalable solutions will need to rely on abstraction, virtualization and orchestration
of cloud / network services
 Example: Orchestration of heterogeneous transport networks – STRAUSS Control
Orchestration Protocol (COP) https://github.com/ict-strauss/COP
6
SDN
Controller
DC 2
Orchestrator
SDN
Controller
MAN
E2E Network
Orchestrator
SDN
Controller
WAN
Global Orchestrator (IoT, Network and Cloud)
Cloud
Controller
SDN
Controller
RAN
SDN
Controller
DC 1
Orchestrator
Cloud
Controller
IoT
Gateway
SDN Controller
WLAN/WPAN
IoT 1
Orchestrator
SDN
Controller
LAN/PAN
IoT2
Orchestrator
IoT
Gateway
Application
#1
Application
#2
Application …
N

7. The Software Defined Network – Programmable City Workshop – BiO/ONF 2015/07/07
Take-away message 5:
The need for Open and Standard Interfaces - also for Nets!
 An SDN/CityOS platform should relying on open and standard Data and Information Models,
Protocols and Interfaces, ultimately offering open access to collected data to public and third
parties.  Enable applications that are developed to exploit the information "generated by
the city" and the layer of sensors deployed across the city.
 cityprotocol.org -- seeks to define a common systems view for cities of any size or type, and then embraces or develops
protocols that will help innovators create – and modern cities deploy – cross-sectorial solutions that can connect and/or break
city silos.
 Sentilo -- The Platform of Sensors and Actuators of Barcelona Unified catalog and global monitoring, Standardized and
automated processes for sensors, Agreements with municipal services/areas, Unified communication interface for all the
applications, Facilitate others to reuse the tools and products.
7
http://www.sentilo.io/

8. The Software Defined Network – Programmable City Workshop – BiO/ONF 2015/07/07
Take-away message 6:
The need for PoC / testbed deployment / Exp. Evaluation
VNF
InstancesvEPC
VNF
Instances
Edge DC Core DC
ADRENALINE testbed ®EXTREME testbed ®
RAN & Wireless Backhaul
(3G/LTE, Wi-FI)
MAN
(Packet Aggregation)
WAN
(Optical Core)
LTE/5G/ SATELLITE PHY
(SDR/SIMULATION)
CASTLE testbed LTE
stack
Metro DC
Cloud
Services
IoTworld testbed
Analog Front-end GEDOMIS® testbed
LTE/5G analog
front-end µwave
& mmwave:
- Antenna
- Power amplifier
- Fillter
- Mixer
- Digital
predistortion
(SHAPER)
GWmGW3
WSNmWSN5WSN4
GW2
WSN3
GW1
WSN2WSN1
Sensors, Actuators
LTE
Phy
LTE
Phy
LTE/5G PHY (FPGA/SDR)
Energy harvesting
devices

9. Thank you!
Questions?
ramon.casellas@cttc.es
http://networks.cttc.es/ons
This work was supported by the European Community’s Seventh Framework Programme FP7/2007-2013
through the STRAUSS project (608528) and IDEALIST project (317999)