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2nd EU-Korea Cooperation Forum on ICT Research, Brussels, Belgium, Dec. 2008.
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www.eurosouthkorea-ict.org - [email protected]
On Next-Generation Metro and Access Networks
Kyeong Soo (Joseph) KimSenior Lecturer
Institute of Advanced Telecommunications (IAT)School of Engineering
Swansea UniversityWales, UK
An event organised by the European Commission (DG INFSO) & the South Korean Ministry of Knowledge Economy (MKE)
December 1-2, 2008Radisson SAS Royal HotelBrussels, Belgium
2nd EU-Korea Cooperation Forum on ICT Research
www.eurosouthkorea-ict.org - [email protected]
� Institute of Advanced Telecommunications (IAT), Swansea University
� A research-centred institute focusing on all aspects of telecommunication technologies.
� 13 academics and core research assistants with proven expertise and international profile
� Specialized and state-of-the-art labs with capital assets valued at over £4M
� Photonics research group
� DWDM transmission
� Advanced modulation techniques for 100+ Gbit/s
� Fiber optical parametric amplifiers (OPAs)
� Components and networks research
� Optical regeneration, wavelength conversion, and WDM sources
� Advanced Erbium-doped amplifier (EDWA)
Organisation Profile & Activities
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www.eurosouthkorea-ict.org - [email protected]
� Wireless research group
� Signal processing for communications
� Smart antennas/MIMO, adaptive/iterative receiver design, space-time coding
� Digital communications
� Adaptive coding & modulation, multiple access (OFDM, CDMA, MC-CDMA)
� RF & Microwaves
� Systems
� e-Health, intelligent transportation systems
� Networks Research Group
� Wireless networking
� Mesh/ad-hoc/sensor networks, radio resource management
� Access & metropolitan area networks
� WiMAX, TDM/WDM PONs, hybrid optical-wireless networks
� Network security & QoS
� Internet security, multi-channel scheduling
Organisation Profile & Activities
www.eurosouthkorea-ict.org - [email protected]
Current Network Limitations
� Bandwidth-hungry services (e.g., VOD, IPTV)
� Increase the amount of network infrastructure
� Increase the network energy consumption
� Increase the data-driven network crashes
� Due to:
� Unbalance in capacity between core and access
� Mismatch between service/usage models and network infrastructure
� Large number of power-hungry and error-prone electrical components/systems
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www.eurosouthkorea-ict.org - [email protected]
Paradigm Shift in Optical Networking
� Changes in network architecture
� Performance →→→→ Energy Efficiency driven design
� Static →→→→ Dynamic, Reconfigurable network
� Dedicated →→→→ Shared resources
�Separate, complicated →→→→ Integrated, Simplified management layers/interfaces
�Unbalanced →→→→ Balanced bandwidth link utilization
� Enabled by rapid development in core technologies
� Burst-mode communications
� Optical packet/burst/flow switching
� Fast tunable optical components
www.eurosouthkorea-ict.org - [email protected]
Issues in Next-Generation Metro and Access Networks
� Optical-wireless convergence
� Mesh (multi-hop) networking and 4G will be key technologies
� Metro-access integration
� Common network architecture for both
� Strategy for upgrading existing optical infrastructure (e.g., SONET ring & TDM-PON)
� By introduction of WDM?
� Through either WDM or hybrid TDM/WDM (with tunable components)
� By extension of TDM?
� Through longer-reach, higher-speed, and higher-split TDM-PONs
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www.eurosouthkorea-ict.org - [email protected]
Ongoing/Potential EU-SK Cooperation Projects on ICT Research
� Metro/Access
� Multi-channel scheduling with tunable transceivers in WDM optical networks
� Wi-Fi Cities: Hybrid two-tier wireless metro/access networks
� WAN
� MiSON: Evolution Strategy toward Future All-Optical Networks
R
R
TunableTX 1
. . .
. . .
TunableTX M
WDMMUX
f1
fW
SchedulerScheduler
WDMDEMUX
ONU 1
ONU W. . .
OLT Control Plane
Electrical Transport Plane
Optical Transport Plane
Resource Discovery,MPLS signalling
IP/MPLS routers,DXC, wavelength, or packet switches
Control Plane
Electrical Transport Plane
Optical Transport Plane
Resource Discovery,MPLS signalling
IP/MPLS routers,DXC, wavelength, or packet switches
Control Plane
Electrical Transport Plane
Optical Transport Plane
Resource Discovery,Extended GMPLSSignalling for OBS/OPS
IP/MPLS routers,DXC, wavelength, or packet switches
OXC, OCS,OBS, OPS
Optical Transport Plane
Resource Discovery,Extended GMPLSSignalling for OBS/OPS
OXC, OCS,OBS, OPS
Control Plane
•Transparent network•GMPLS-based control and traffic engineering framework
With extensions for integrated handling of all optical switchedtraffic
Control Plane
Electrical Transport Plane
Optical Transport Plane
Resource Discovery,Extended GMPLSSignalling for OBS/OPS
IP/MPLS routers,DXC, wavelength, or packet switches
OXC, OCS,OBS, OPS
Optical Transport Plane
Resource Discovery,Extended GMPLSSignalling for OBS/OPS
OXC, OCS,OBS, OPS
Control Plane
•Transparent network•GMPLS-based control and traffic engineering framework
With extensions for integrated handling of all optical switchedtraffic
www.eurosouthkorea-ict.org - [email protected]
Next Steps
� Preparation of joint research proposals for FP7/ICT with Korean partners
� Multi-channel scheduler with tunable transceivers in WDM optical networks
� Ongoing collaboration with Stanford (through SUCCESS and GROW-Net)
� ETRI and LG (through their WDM-PON experience in Korea) could be potential partners, especially for test bed implementation.
� Wi-Fi Cities
� Need good expertise in WiMAX (WiBro) base station in studying interfacing between WiMAX and WLAN mesh.
� MiSON
� Ongoing collaboration with BT
� KT and other network operators could collaborate with BT through this project.
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www.eurosouthkorea-ict.org - [email protected]
Thank you for your attention!
Kyeong Soo (Joseph) KimSenior Lecturer
Institute of Advanced TelecommunicationsSchool of Engineering
Swansea UniversityWales, UK
[email protected]://iat-hnrl.swan.ac.uk/~kks