Past, Present, Future of Optical
Network Researches in Korea
2006.3.5.
J.K. Kevin Rhee
rhee.jk@ieee.org
Optical Internet Research Center
Information and Communications University, Korea
Future Optical Network Workshop
at OFC 2006, Anaheim
Outline
1.
1. Optical
OpticalNetworks
Networks R&D
R&Din
inKorea
Korea
2.
2.IT
IT839
839and
andBcN
BcNof
of Korean
KoreanMIC
MIC
3.
3.Optical
OpticalInternet
InternetResearch
Research
4.
4.FTTH
FTTHApplications
Applications
5.
5.Future
Future Optical
OpticalInternet
Internet
2/28
The Past – legacy optical networks
The first deployment optical link in Korea
1984 – DS3 trunk between two POPs
Major Deployment of SDH
1990’s – Still in service as the major resource of the national
infrastructure
Era of IT hypes
1995 – 1997 : KT, Dacom, Hanaro, PowerCom, … a major
paradigm shift in the SP market
DWDM, All optical OXC, Optical Packet Swithing, 40-100 Gbps,
…
Major optical R&D investment started – Conglomerates
(Samsung Elec, LG Elec.), Research Institutes (ETRI), hundreds
of start-ups, 10s of $M in a single university labs.
Regional specialization in GwangJu Area for optical industry and
R&D
CDMA mobile services – SK Telecom, KTF, LG Telecom.
3/28
The Past – Optical Winter
Korean IMF crisis
1998-1999: froze most of R&D investment except for
government funding
Re-evaluation of market sectors, followed by detrimental
restructurings including R&D
Optical Winter
It’s so cold in Korea, too.
2000-2002 restructuring begins
2002-2004 Virtually no industry R&D investment in optical
communication industry except for FTTH
On the other side, the mobile sector grew exponentially.
4/28
The Present –Issues, awes, and hopes
Network capacity demands in market
Network market model evolves with features
rather than capacity
“national demand is only about 100s Gbps, even
with >60% (world highest) market penetration of
broadband internet access (>4Mbps)”
Yet the multimedia service on network did not
take off.
Service model study on TPS (triple play service of
telephone, TV, and internet)
Mobile brings tangible benefits to consumers,
and it’s so dominant a winner in the telecom
market.
5/28
The Present –Issues, awes, and hopes
Technical Survivors – the fittest
Focus on the near term market – FTTH
E-PON, WDM-PON, and Hybrid-PON
Not much on optical system issue – The key is low cost
BiDi module dev.
The market expectation is not sizable - ~ $1B only, maybe
one-time deployment only, over the next several years
(2006-2010)
R&D for the long-term market – Optical Internet
IP-friendly optical network technology with more functions
on control and management planes
Some stimulating signs for the optical market
Beginning of capacity depletion and new investments
2005: Started major installations of OXCs and MSPPs.
2006: R-OADM field installations
6/28
Market Places of Telecom Services in Korea
reached or close to market saturation
< Subscribers >
Subscribers
(Unit : Thousands)
40,000
< Sales >
: Fixed voice
: Fixed voice
: Mobile
: Mobile
: High Speed Internet
: High Speed Internet
Sales
(Unit:100M Won)
36,586
200,000
33,591
35,000
30,000
150,000
29,045
22,877
25,000
20,000
20,424
23,442
20,581
22,870
22,724
100,000
15,000
10,178
11,921
50,000
10,000
6,910
7,805
5,000
338
1997
1999
2001
7/28
2003
2004
The Future by Key Words
BcN
BcN (Broadband convergence network) is a Korean vision of
NGN (ITU-T)
National Network Service Model by the Korean Ministry of
Information and Communication
Convergence in mobile-wire and broadcast-data networks
Customer (service) driven networking
TPS with open service interfaces and suitable infrastructures
Transport and access network models are being defined
including optical networks
Wibro and 4G Mobile
WiBro(modified IEEE 802.16e) is a seed for data-mobile
convergence.
~3 Mbps mobile access at 100 km/hour traveling speed,
targeted for 100 Mbps at 100 km/hour.
8/28
The Future on Optical Technology
BcN optical access network
FTTH with E-PON and WDM-PON technologies
TPS service compatible – QoS provisioning
SLA (service level agreement) compatible
IPTV broadcast or on-demand
BcN optical transport network
Managed optical networking with optical internet
technology – open interface for infra bandwidth interfaces
Support for end-end QoS provisioning
TPS transport
Wibro and 4G Mobile
Compatible optical access for RASs (radio access station)
mobile feature compatible
9/28
MIC in struggle -
Stagnate or Challenge ?
Home
Network
IP
HDTV
Premium
Services
Profit
VoIP
Wibro
FTTH
Best Effort
Moment of
Truth
Fixed price
Marginal increase in the number of
QoS-based IP Network
subscribers
New
New Biz
Biz Model,
Model,
Dark
Dark and
and foggy
foggy way
way
Current Biz Model,
Sure way to die
10/28
What is the Killer Application ?
TPS = TV + Voice + Internet Access
= Already existing markets
Maybe, but no increase in the size of market
Video Phone, Video Conferencing
Perhaps, but requires long time to create substantial amount
of new market
E-Learning
Most likely, especially in Korea
11/28
Value Chain in IT Industry
Value Chain & Role of Government•Private Sectors
Introduction of
New Services
Construct
New infrastructure
Device/
Components
Contents & S/W
Industrialization
(9 New Growth Engine )
License Approval
Policy & Strategy
Supporting Standard
Illegal Copy Prevention
Service Method
Standardization
Narrow path Tech.
Test-bed
Frequency Allocation
Development of Tech.Basis
Public Pilot Project
Law & Regulation
Initial Market
BcN Pilot Project
Investment Fund
Overseas Expansion
Government
Private Sectors
competitive Market
Reinvestment
Service Ready
Package S/W development
Create Employment
Production Basis
Deploying Solution industry
Expansion of a ripple effect
R&D investment
Competitive prime cost
Applied S/W development
Reinforcement of Export
Pilot Commercialization
Expansion of Market Size
Embedded S/W development
Marketing
12/28
IT839 Strategy
Triggering positive feedback mechanism in the value chain
8 New Services
WiBro
(2.3GHz Portable Internet)
DMB
Home Network
Telematics
RFID-based Service
3 Infrastructures
NG Mobile Comm.
Broadband Convergence
Network (BcN)
Digital TV
Home Network
IT SoC
U-Sensor Network
(USN)
W-CDMA
Terrestrial DTV
9 Growth Engines
NG PC
Embedded SW
Digital Contents
& SW Solutions
IPv6
Telematics
IP Telephony (VolP)
Intelligent Service Robot
13/28
IT839 and BcN
Digita
l TV
IT839
Next
Generatio
n PC
Digital
contents
Intelligen
t Robot
IT SoC
Next Gen Mobile
Telecomm
Embedde
d S/W
BcN
BcN
BcN
Gateway
Open API
Optical
Net.BcN
BcN
Service Platform
Switch/Router
BcN
Products/Systems
BcN Core
Technology
Telematic
s
Home
network
Traffic
measurement&
analysis
End-to-End
QoS
Topology&
capacity planning
99.999 %
Reliability
14/28
Resource
management
BcN mobility
QoS
routing
Manageable
access control
VPN
Engineering
SLA, Laws/rules`
Vision & Goals of BcN
Vision
To provide seamless, broadband, integrated multimedia services
anytime, anywhere by the year 2010
To reach 20 million BcN subscribers by 2010 in Korea
4,500,000
1,500,000
Goals
E2E Optical
(50~100M)
2005
500,000
Wireless
(50~100M at most)
2007
15/28
2010
10,000,000
3,500,000
2005
10,000,000
2007
2010
BcN Research Model
1 stage (2004-2005)
PSTN
Servic
e
Internet
Converged
Converged Multimedia
Multimedia
Customized
Customized Multimedia
Multimedia
(Fixed/Wireless
(Fixed/WirelessMMoIP,
MMoIP,
Multimedia
MultimediaConference
Conference
Interactive
InteractiveVoD,
VoD,Interactive
InteractiveDMB)
DMB)
(Multimedia
(Multimedia
Converged
ConvergedService
Service
+Ubiquitous
+UbiquitousHome
Home
+Grid
+GridApplications)
Applications)
BcN
BcN
Ubiquitous
Ubiquitous BcN
BcN
Digital TV
Telecom/Broadcast
Archit
ecture
3 stage (2007-2010)
VoIP
Mobile/IMT-2000 Phone
Analog TV
2 stage (2006-2007)
Celluar/IMT-2000
High QoS IP
Fixed/
Wireless
Access
Grid Application Cluster
BcN Control&Mgnt
BcN Transport
Digital
Home
Fixed/ BcN Control&Mgnt
Wireless
BcN Transport
Access
IP-PABX, Softswitch
Syste
m
IP/MPLS Router
GGSN/SGSN/PDSN
Obje
ctive
s
BcN Engineering for
Heterogeneous Network
Environments
BcN
BcN Systems
Systems
Customized
Customized BcN
BcN Systems
Systems
(BcN
(BcN Gateway,
Gateway, Softswitch+
Softswitch+
Flow-based
Flow-based MPLS/GMPLS
MPLS/GMPLS Router
Router
BcN-IMS
BcN-IMS System,
System, MM
MM Handsets)
Handsets)
(Intelligent
(Intelligent BcN
BcN Gateway,
Gateway,
Manageable
Flow
Manageable Flow Switch/Router
Switch/Router
Ubiquitous
Ubiquitous Multimedia
Multimedia Terminal)
Terminal)
BcN Engineering for
Converged QoS
Environments
16/28
BcN Engineering for
Ubiquitous Environments
Summary of BcN Deployment Strategies
Open API Platform
BcN Reference Model
to provide guidelines to structures
and inter-operability
KT
(Octave)
to enable SMEs to develop
applications easily
BcN
Pilot Service
BcN 시범사업
BcN R&D Network
SKT/Hanaro
(UbiNet)
Dacom
(KGT)
QoS Management
System
to provide Test-bed for BcN
applications and solutions
to insure QoS in BcN services
with QoS index & monitoring
17/28
The Future on Optical Technology
Optical Internet
Optical burst switching technology and simulator
development
GMPLS-based control plane
OB-ADM-based Optical Internet testbed
Optical components and modules
Domestic activities on optical internet
Optical Internet Forum
Optical Internet Workshop
18/28
Optical Internet Research Activities
Optical Internet Research Center (OIRC )
• Overseas Laboratories
• Internship Program
• Collaborative Research
,
C
R
C
- IN
P
A B
CU
No
VP rte
I
l,
Research
Participation
Joint
Development
• Phoco, Fionix,
Neowave,
SungwoonACE,
KT, SKT, KTF
Domestic
Industries
• Collaborative Research
• Research Environment
• Researcher Exchange
OIRC
KOSEF
• ICU, Korea U.,Yonsei U.,
Soongsil U., Chonbuk U.
Universities • UC-Davis, Melbourne U.
• ChongQing U. of Posts and
Telecommunications
• Shanghai Jiao Tong U.
Establishment
and Funds
Cooperative
Research
Research
Institutes
Government
• KOSEF, MOST, MIC
19/28
• ETRI, KT, Samsung, NIST
OIRC R&D Areas
Research
Terabit Optical packet router architecture
Optical packet/burst-based switching
Optical packet traffic engineering
GMPLS-based control plane
GSMP open interface for control/management
Optical Ethernet and MAC protocol
Stage I
(2000~ 2003)
Stage II
(2003 ~ 2006)
GMPLS over OBS Optical Internet testbed
NS2-based OBS simulator
40Gbps Burst Mode Optical Interface
Optical Amplifier, Buffering and Sync. Control
Optical Nano second Switching Fabric
Optical Header Processing
Stage III
(2006 ~ 2009)
-Verified GMPLS+AOBS Architecture -Achieve Global Leadership in Optical Internet
-Implemented Testbeds
- Prepare for the post-ERC R &D
AOBS Feasibility,
Performance Study
GMPLS-based AOBS
Simulator & Test bed
Impact
Strategy
Strategy
▪▪ Pursue
Pursue Optical-Wireless
Optical-Wireless Converged
Converged
BcN
BcN Network
Network Technologies
Technologies
▪▪ Baseline
Baseline for
for Optical
Optical BcN
BcN
Industrialization
Industrialization
▪▪ OBS
OBS Applications
Applications for
for Access/Metro
Access/Metro IP
IP Networks
Networks
▪▪ IPR,
Standards,
Internship
IPR, Standards, Internship
AOBS-based ADM-Ring
Prototyping
Vision
Core
CoreRR&
&DD
▪ Expand R & D into Basic OPS Technologies
20/28
World-leading optical BcN
Implementation Strategy
Technology Transfer to Industry
Engine for post-ERC Project
Incubation
Secure Cutting- edge
Network component
technologies
Research Road Map of OIRC
Years
Teams
Major Objects in each step
Router
Architecture
Team
Architecture
OAM
Testbed
2000~2002 (1st phase) 2003~2005 (2nd phase)
MPλ
λS +OBS Switching
Optical
Internet
Architecture
and Testbed
Routing
Algorithm
System
Team
Optical IP
Protocol
MPλ
λS Protocol
Technology
Convergence
GMPLS+AOBS Optical Switching
GMPLS+AOBS
Optical Packet
Router and
Testbed
GMPLS+AOBS
Signaling
Protocol
Phsical
Team
Optical
Header
Processing
Optical
Packet
Switching
Application Fields
Self-routing Optical Packet Switching
AOBS Access/Metro Application
Optical Internet Interoperability
Optical Internet Blue Ocean
Real-Time Multicasting and Burst
Routing Algorithm
Optical BCN Control/MGT
Optical Ethernet MAC Protocol
Protocol
Optical
Interface
2006~2009 (3rd phase)
OXC-based
OBS Switching
System
Technology
AOBS
Switching
System
40Gbps Burst Mode Optical
Interface
Optical Nano Switching Fabric
and Optical Header Processing
Apply to Core Technology of Optical Packet Core and Edge Router System
21/28
Optical Internet Testbed
22/28
OB-ADM Ring Network Testbed
OB-ADM system rack
Features
Access/Metro Application of OBS
10Gb/s 4ch with 3 nodes
micro second switching speed
improves network efficiency by
processing many burst data/wavelength
Jointly with SAMSUNG
EDFAs
Ingress control
AGC
TLD
Core Control
Core switch
Egress
Power suppliers
23/28
SMF rack
GMPLS Control Plane with GSMP Interface
GMPLS
GMPLSControl
ControlPlane
Plane
Supervision
Supervisionof
ofthe
thewhole
whole
processes
processesininOBS
OBSnetworks
networks
GMPLS
header
may
GMPLS header mayinclude
includeOBS
OBS
attributes
attributes
Standardized
StandardizedininIETF
IETF
GSMP
GSMPOpen
OpenInterface
Interface
Open
OpenInterface-based
Interface-basedconnection
connection
management
managementininOBS
OBSnetworks
networks
Defines
open
OBS
MIB
Defines open OBS MIBand
and
models
models
web
webbased
basedOBS
OBSmanagement
management
Auto
configuration
Auto configurationof
ofOBS
OBS
network
with
link
management
network with link management
ITU-T
ITU-TRACF,
RACF,IETF
IETFPCE
PCE
standardization
standardization
24/28
Full-Fledged OBS Simulator
Features
World class OBS Simulator
Based on NSNS-2 (ver
(ver ns-2.26))
Jointly with SAMSUNG
Relationship of upper protocol
layer and lower optical layer
Priority Queueing Scheduler
QoSTEXT
Offset Time Supporting
Supporting TCP, UDP transport
protocols
Fiber Delay Line
Time-slotted OBS
Graphic User Interface
homepage
•Source code open to public
•http://wine.icu.ac.kr/~obsns
•Invite global collaborations
25/28
WDM-PON R&D
W-PON Development
WDM/Ethernet HybridPON
WDM-PON
Central Office
ETRI
Cost optimization
IP-based TPS with WPON
UCL
PD
KT
Service
Differentiation
FTTH Deployment
200,000 subscribers
Gwangju city
Fund; US$119M
Period; 2005-2009
26/28
filter
splitter
filter
subscriber
LD
PD
PD
Future Optical Internet
BcN/NGN
BcN/NGNCompliant
CompliantOptical
OpticalAccess
Accessand
andTransport
TransportNetwork
Network
Bandwidth
Bandwidthand
andQoS
QoSprovisioning
provisioningfor
forTPS
TPS
Convergence
Convergenceof
ofmobile-optical
mobile-opticalnetworking
networking
OBS/OPS
OBS/OPSuser-direct
user-directaccessibility
accessibilityfor
forBW
BWand
andQoS
QoS
Revenue
Revenuegenerating
generatingservices
servicessuch
suchas
asLight
Lighton
onDemand
Demand
27/28
The Key Word !
Mobile
over Optical
28/28