overview of the bats project - unisi.itgiambene/bats_overview.pdfbats – broadband access via...

Overview of the BATS Project

BATS – Broadband Access via Integrated Terrestrial & Satellite Systems

Context

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“BATS will develop and demonstrate the concept of a fully integrated terrestrial and satellite communication system to enhance the quality of experience in those areas of Europe which will be unserved or underserved in terms of superfast broadband availability.”

EC Digital Agenda objective is to deliver

more than 30 Mbps to 100% of

European households by 2020.

Market forecast in 2020: in many

European regions >50% households will

lack “superfast” broadband.

However, all will have the ability to

access satellite and most to some lower

speed “terrestrial” access technologies.

BATS vision:

Source: Point Topic, March 2012


BATS Objectives

Definition and validation of novel integrated end-to-end communication architecture for the provision of BB services in ‘unserved’ and ‘under-served’ areas.

Investigate and design new techniques to improve the use of all network resources and to increase the aggregate throughput of satellite communication links.

Define and validate an integrated network management framework to allow the efficient and cost effective deployment and operation of the BATS infrastructure.

Develop and validate the IUG and service concept within a QoE framework for the seamless E2E connectivity of BB applications.

Examine methods to determine QoE requirements from applications and define new test methods to assess real user experience.

Define a sustainable business model for integrated service delivery scenarios and assess the impact for stakeholders across the value chain.

Optimise the design and control algorithms to enable carbon footprint minimisation.

Develop pre-standards in the following areas: satellite access network reference architectures, interoperability and integration of fixed satellite systems with terrestrial systems, integrated network management.

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Integrated Concept (1/2)

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Integrated Concept (2/2)

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• Move to higher frequency bands in the feeder link (Q/V and optical). • Order of magnitude cost/bit reductions • Optimized satellite system to adapt to the evolution of the traffic

demand.

• Satellite feeder link diversity network • Integrated network management

framework.

• Intelligent Network Gateway (ING) or “Home Agent”.

• Intelligent User Gateway (IUG): Routing data over the most appropriate access network.

• Optimized Quality of Experience (QoE)


Opportunity

Support Digital Agenda

implementation

• Enabler to the delivery of cost

effective superfast broadband

service in both “un served” and

“under served” areas

Increased satcom market size and

closer integration with other

networks

Worldwide Satcom market and jobs

in Europe • Worldwide Market opportunity: hundreds

of B€ over next 10 years

• Upstream

E2E System engineering to

strengthen industry competitiveness

• Downstream

European Standard to favour SMEs in

equipment, services and applications

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Expanded market with BATS (underserved)

Increased throughput with BATS


Research Areas

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Integrated Network and Service Management

Satellite Network Optimisation

Intelligent User Gateway and Service Delivery

Economic and Environmental Sustainability

QoE Validation

BATS Integrated Concept & Architecture


BATS Solution (1/3)

Order of magnitude

improvement in terms of

aggregated capacity compared

to state of the art Ka-band HTS

Q/V-band and Optical feeder

link configurations

Advanced Interference

Cancellation and Radio

Resource Management

techniques

Next Generation Air Interfaces

Next Generation High Throughput Satellites

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West satellite East satellite

Ka User Rx

QV GWs

Tx/Rx

Ka User

Tx/Rx

Ka User

Tx+Rx

QV GWs

Tx+Rx

Ka User

Tx+Rx

Ka User

Tx+Rx

SFPB architecture (Ka and QV bands) MFPB architecture for Ka-band and SFPB

for QV-band

Ka User

Tx/Rx


BATS Solution (2/3)

Due to links high heterogeneity, state

of the art load balancing algorithms

would be sub-optimal

Designed to optimise TCP (and

HTTP) traffic, as they are now main

protocols dominating Internet traffic

The Intelligent User and Network Gateways

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Intelligent User Gateway (IUG)T

ra

ffic

Cla

ssif

ica

tio

n

Link Selection

Lin

k M

on

ito

rin

g

Link Selection

Tra

ffic

Cla

ssif

ica

tio

n

Lin

k M

on

ito

rin

g

Intelligent Network Gateway (ING)

Internet

Content server

Satellite

3G/4G

xDSL

End-user Operator

Based on Multi-Path TCP concept, with IUG and

ING as proxies. Different TCP subflows per path

between source and destination host, but same

interface for Application and Network layers.

Modular design. Key building blocks:

• Traffic Classification

• Link Status Monitoring

• Intelligent Link Selection


BATS Solution (3/3)

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Integrated Broadband service delivered to the end-user via the Intelligent User Gateway (IUG)

Intelligent Network Gateway (ING) performing link selection on downstream traffic, and acting as interface/gateway for the IUGs to public Internet, synchronizing and combining data streams sent by IUGs towards different access networks.

ING located as close as possible to terrestrial operator core network not to increase latency of services routed terrestrially

Centralized satellite PEP close or at ING, avoiding internal re-routing and synch in case of satellite gateway handover


Validation (1/3)

Objective tests to validate

IUG/ING functionality in the

lab environment

Subjective tests involving real

users, to evaluate in a

controlled environment the

Quality of Experience

brought by the BATS system

Testing with different

applications, different number

of simultaneous users and

different link characteristics

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BATS Laboratory

Laboratory Trials at the University of Surrey


Validation (2/3)

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Installation of prototype IUGs in 50 residential households and business (35 in Spain and 15 in Germany)

Two approaches:

• Spain: Led by terrestrial ISP with tighter integration with satellite operator

• Germany: Led by Satellite operator without integration with terrestrial ISP

Field Trial period June – September 2015

Field Trials in Spain and Germany


Validation (3/3)

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Disruptive Radio Interface Test-bed

Initial Spreading testbed for Satcom network

Lab-test on FBMC and OFDM for the satellite forward link

Integrated Network Management System based on MTOSI interfaces

Other Demonstration Activities


Conclusion and outlook

Satellite technology is continuing to develop in capability whilst coming down

in price

Will become more affordable

More closely integrated with other technologies

BATS project has confirmed a strong market opportunity both for satellite

and the integrated concept

Project runs until end of December and there will be feedback from

trials….and publication of results.

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