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ECOC 2007 — 2 www.ist-muse.eu
Outline
Introduction to MUSE
Service plane
Multimedia service enablers
Conclusions
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ECOC 2007 — 3 www.ist-muse.eu
MUSE Overall Objective
Multi service access network that provides secure connectivity between end-user terminals and edge in a multi-provider environment at a low cost for every European citizen.
Multi service access network that provides secure connectivity between end-user terminals and edge in a multi-provider environment at a low cost for every European citizen.
MobileService Provider
Network Service Provider
Internet Service Provider
Application Service Provider
Access Node
ResidentialGateway
Edge NodeAggregation network
First Mile
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ECOC 2007 — 4 www.ist-muse.eu
MUSEConsortium
System vendors
SME Aarhus BB society
Operators Research Inst. & UniversitiesIBBTInriaTU EindhovenBudapest University (BUTE)ICCS/NTUAHHILund Institute of Technology (LTH)ACREOUniv. Carlos III de MadridUniversity of Essex
Component vendors
Phase I: 2004-2005Phase II: 2006-200736 partners -100 PY/year
(*) (*)
(*)
(**)
(*) Only in phase I
(**) Only in phase II
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ECOC 2007 — 5 www.ist-muse.eu
Outline
Introduction to MUSE
Service plane• Service enabler• Trends in access node technology• Service plane
Multimedia service enablers
Conclusions
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ECOC 2007 — 6 www.ist-muse.eu
Service enablers
Network service enablers
Higher layer service enablers
AAA QoS
SecureConnectivity
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ECOC 2007 — 7 www.ist-muse.eu
Service enablers
Ser
vice
ena
bler
sS
ervi
ce e
nabl
ers
Mon
itorin
gM
onito
ring
Pro
xyP
roxy
Tim
e sh
ifted
TV
Tim
e sh
ifted
TV
:
Service plane
Enhance deployment
Conversational services
Fixed mobile convergence
Multimedia services
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ECOC 2007 — 8 www.ist-muse.eu
Access Platform evolution
Time
DSL Termination
EthernetAggregation
IPSubscriber
Management
Service &Application
Complexity of Added Value
Features
Complexity of Added Value
Features
OperatorSpecific
Requirements
HW PlatformCost
HW PlatformCost
FeatureComplexity
FeatureComplexity
PlatformCost
PlatformCost
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ECOC 2007 — 9 www.ist-muse.eu
Why to migrate intelligence in the access ?
Quality (QoS): first fully trusted point close to the user – only point with complete view of all services per user
Security: ingress/egress point to network
Robustness: smaller number of users impacted in case of failure
Scalablility: feasible data rates for DPI and processing
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ECOC 2007 — 10 www.ist-muse.eu
Service Plane
Integrated inSwitch board
Integrated in Line card
SeparateService Blade
Service Plane
Ser
vice
CS
ervi
ce C
Ser
vice
AS
ervi
ce A
Ser
vice
BS
ervi
ce B
Control Plane(SW)
AdvancedData Plane (HW)
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ECOC 2007 — 11 www.ist-muse.eu
Outline
Introduction to MUSE
Service plane
Multimedia service enablers• Quality of Experience• Video aware traffic management• Reliable video transport• Time shifted TV• P2P enhancements• Monitoring and knowledge plane
Conclusions
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ECOC 2007 — 12 www.ist-muse.eu
Quality of Experience
QoS: Network parameters• Bitrate• Packet loss• Delay, jitter
QoE: User perception• MOS (Mean Opinion Score)• Visible pixel errors per hour• Zapping delays• Viewing mode (e.g. live, progressive download)• Gaming: Fast response, but equal delay• Best Effort Internet
Service awareness in the network can improve the QoE
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ECOC 2007 — 13 www.ist-muse.eu
Video Aware Traffic Management
0
0,5
1
1,5
2
2,5
3
3,5
4
2090 2092 2094 2096 2098 2100 2102 2104 2106 2108 2110
Random drop : B, I, P picture and audio information equally affected
I P BdBs BdP BdBs BdP BdBs BdP BdBs Bd I P Bs
Intelligent drop : only Bd picture drop (e.g. through WRED)
Bit Rate per GOP
I P BdBs BdP BdBs BdP BdBs BdP BdBs Bd I P Bs
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ECOC 2007 — 14 www.ist-muse.eu
Video Aware Traffic ManagementImpact on QoE
Random DropIntelligent Drop
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ECOC 2007 — 15 www.ist-muse.eu
Reliable video transport in access
Bursts of packet loss on DSL or Wireless segments• Detremental for Video services
Solutions:• FEC (Forward Error Correction) at application layer• Retransmission proxy
impulsive noise
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ECOC 2007 — 16 www.ist-muse.eu
FEC approach
Recover lost packets at the STB with the help of redundant FEC information
Standard solution Pro MPEG
20% extra BW to recover 1% packet loss
XOR
XO
R
01 02 03 04 05 06 07 08
09 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40
L1
L2
L3
L4
L5
C1 C2 C3 C4 C5 C6 C7 C8
COP#3 matrix
Column FEC packets
Row FEC packets
FEC at encoderFEC enabled STB
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ECOC 2007 — 17 www.ist-muse.eu
Retransmission
Proxy in Access Node caches packets for short time• TCP• RTP/UDP
BW for retransmission is negligible
RetransmissionRequest and buffer in STB Retransmission
Proxy
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ECOC 2007 — 18 www.ist-muse.eu
Time shifted TVBroadcast TV
broadcastserver
Start of livebroadcast
t1h 1 day
Time-shiftedTV
access server
1 week
Video onDemand
regional server
Video onDemand
central server
# requests
Real timebroadcast
# Requests
1 h 1day 1 week
TSTV serverAccess
CDN ServerRegional
VoD ServerCentral
P2P interaction
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ECOC 2007 — 19 www.ist-muse.eu
Enhancing P2P services
BabelgumTM
Cache for P2P delivery
DPI to trigger QoS
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ECOC 2007 — 20 www.ist-muse.eu
Monitoring Plane – Knowledge Plane
Monitoring packet loss at ingress/egress point
Analysis, correlation, fault localisation
Trigger action to restore QoE
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ECOC 2007 — 21 www.ist-muse.eu
Outline
Introduction to MUSE
Service Plane
Multimedia service enablers
Conclusions
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ECOC 2007 — 22 www.ist-muse.eu
Conclusions
Service enablers increase the QoE of multimedia applications
Trend towards higher layer awareness in the access
Service plane allows for flexible implementation
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ECOC 2007 — 23 www.ist-muse.eu
BB Access Lab trials
SPC (FMC) at TNO DelftSPE (RoF) at TU/e SPB (Service Plane, MM) at DT Berlin
SPE (CWDM) at HHI Berlin
SPB (Distr. SBC) at TID Huesca
SPC (FMC) at ACREO Kista
Via IST MUPBED
SPE (XL-PON) at BT Ipswich
SPD (Distr. content & control ) at PTI Aveiro
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ECOC 2007 — 24 www.ist-muse.eu
Muse confidential
Thank you for your interest