Norbert Niebert, Andreas Schieder, Henrik Abramowicz,Christian Prehofer, Holger Kart

Ambient Networks projects, EU’s 6th Framework Programme

2005.11.14

Jongsoo Lee (jslee@mmlab.snu.ac.kr)

Ambient Networks

An Architecture for Communication Network Beyond 3G

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Content

Introduction

Previous efforts

Ambient Network From All-IP networks to Ambient Networks How to build Ambient Networks Ambient Networks in detail

Conclusion

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IP is the common ‘lingua franca’ Divergences in the network control layer

For services like VPN, security, mobility, QoS, …

Ambient Network Provide a domain-structured, edge-to-edge view

for the network control Allow the agreement for co-operation between

networks

Introduction

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To solve the deficiencies of the Internet

Separating the Internet into domains Domain : higher logical level interconnected to

build the Internet Overlay networks

Network reliability, Different routing paradigms, …

Control of larger networks aren’t conclusively addressed.

Previous efforts

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IP2

IP based IMT network platform by NTT DoCoMo Connectivity and control functions are separated All control functions are grouped into

־ Network Control Platform (NCPF)

־ Service Support Platform (SSPF)

Requirements identified by IP2

Support of large multimedia traffic Efficient mobility and diversified radio accesses Seamless service provisioning and open interface

Previous efforts

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Separation between transport and control

A layer for connecting different networks

The control functions already identified and isolated by All-IP networks

→ Ambient Control Space : a well defined set of required control functions

From All-IP to Ambient Networks

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From All-IP to Ambient Networks

How ambient networks extend All-IP networks

Network Composition The dynamic, instant composition of networks Not only basic addressing and routing To function across operator and technology

without user involvement

Example

.

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From All-IP to Ambient Networks

Mobility Intra-domain mobility within a static network Roaming solution across domain boundaries Integrating localised communications Security issues of inter-domain operation

Heterogeneity Integration the capabilities of different

technologies to and end-to-end, seamless and secure solution for the user

QoS and multimedia delivery

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How to build Ambient Networks

The lack of commonly available and configurable control functions, dependence on network technology and owership

Design principles Open connectivity and open networking functions Self-composition and self-management Can be added to existing networks

.

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Ambient Control Space

Ambient Control Space (ACS) introduce to encompass all control functions in a certain network domain

Ambient Network : ACS together with a connectivity network Well defined control interfaces It provides at least a subset of the ACS functions It can be dynamically composed of several other

Ambient Networks

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Ambient Network Interfaces

ACS spanning several domains and always only a single homogenous ACS is visible to external entities

Standardised interface Ambient Network Interface Ambient Service Interface

Scalability & Universality

.

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Ambient Media Delivery Overlay

Support ambient multimedia services Integrating various end-devices and access

technologies Increasing service performance and end-user

convenience

MediaPorts Media routing

־ Multi-path־ New routing metric

Caching Adaptation

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Generic Link Layer Dynamic selection and configuration of different radio access

technologies Allow cost-effective data transmission based on service

requirements

Multi-radio resource management functions Allow coordinated allocation of heterogenous types of radio

resources Perform seamless and efficient radio protocol reconfiguration for

dynamic changes of radio access technologies

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Conclusion

Starting from the current All-IP network

Co-operations between networks is a key

Instant network composition to allow rapid adaptation of the network topology

The Ambient Control Space turning today’s networks into Ambient Networks