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OFC’07 Tracks Category 9: Networks
OMO, OCDMA OTuE, Network Architecture OWC, OPS/OBS OWK, Network Control and Management OWR, Cross-Layer Design OThF, Optical Packet Switching Networks OThJ, Optical Network Survivability OThQ, Carrier Services
OFC’07 Tracks (Contd.) Category 10: Emerging applications and access solutions
OMJ, Optical Network Applications OMR, Ultra-Short Reach Interconnects OTuG, Colorless ONU’s OWD, PON Modulation Schemes OWL, WDM PON OWS, Future PON Technology OThE, Service and Network Management OThM, Hybrid Optical Wireless
Network Architecture Code Title Author/Affiliate Topic Trends
OTuE1 Optical and the challenge of carrier network transformation
Gladish / T-system
Multi-service packet network
Efficient waveband provisioning
Role of ROADM
OTuE2 Blocking and waveband assignment in WDM networks with limited reconfigurability
Turkcu / George Washington Univ.
Benefits of ROADMs with tunable transponders
OTuE3 Delay sensitive smoothed round robin scheduler for light-trail and SLiT networks
Bafna / IIT, TTU RR provisioning over light-trail and SLiT networks
OTuE4 HOPI testbed Summerhill / Internet 2
Dynamic provisioning of layer 1 services and integration of layer 1-3
Network Architecture
Code Title Author/Affiliate Topic Trends
OTuE5 A protocol for efficient tunable laser utilization to support incremental upgrade in a WDM-PON
Song / UC Davis Better utilization of tunable lasers in WDM-PON
OTuE6 Improving access performance with an integrated PON and WiMAX with MIMO
Lin / NEC, SUNY Antenna allocation with MIMO to achieve high throughput and good resilience
OPS/OBS Code Title Author/Affiliate Topic Trends
OWC1 Burst-switched metro and access networks
Kazovsky / Stanford
OBS plays an important role in access networks
TCP / Ethernet over OPS
OBS for access/metro
OWC2 A fully functional application-aware optical burst switched network testbed
Zervas / Univ. of Essex, Univ. of Bristol (UK)
Application-oriented asynchronous OBS network model
OWC3 QoS differentiation in OBT ring networks with comparison to RPR networks
Das / Stanford, Fujitsu
Comparison of QoS differentiation in OBT with RPR standard
OWC4 Design and implementation of GMPLS-based optical slot switching access-distribution network using PLZT ultra-high speed optical switch
Hayashitani / Keio Univ., Nozomi
A scalable and high-switching- speed optical slot switching network
OPS/OBS Code Title Author/Affiliate Topic Trends
OWC5 All-optical multiple-label-processing based optical packet switching prototype and novel 10Gb Ethernet / 80 Gbps-wide colored optical packet converter with 8-channel array burst-mode packet transceiver
Furukawa / NIICT, Yokogawa, NTT, Univ. Roma, Osaka Univ.
IP packet / Ethernet transporting under OPS prototype
OWC6 TCP-aware load-balanced routing in optical burst- switched (OBS) networks
Komatireddy / Univ. of Massachusetts
TCP over OBS with load balancing
OWC7 On the upgrade of an optical code division PON with a code-sense Ethernet MAC protocol
Huiszoon / Eindhoven Univ. of Tech., Netherland
A novel optical code-sense multiple access / collision detection mechanism
Network Control and ManagementCode Title Author/Affiliate Topic Trends
OWK1 Techno-economics issues in future telecom networks
Lord / British Telecom
Long-reach access connects to core via switch
Emphasis on Ethernet over WDM
Efficient dynamic routing
OWK2 Advance reservation-based network resource manager with adaptive path discovery scheme for SOA-based networking
Hayashi / KDDI Delay-aware routing with optimized scheduling
OWK3 Feasibility of flow-based optical provisioning in GEANT
Ruffini / Univ. of Dublin, Ireland
Dynamic routing by analyzing local traffic info
Network Control and ManagementCode Title Author/Affiliate Topic Trends
OWK4 Carrier-grade Ethernet for core networks
Kirstaedter / Siemens
Functionality and standards for Ethernet-over-WDM networks
OWK5 Multiple path computation element (PCE) cooperation for multi-layer traffic engineering
Cugini / CNIT, SSSA (Italy)
Reduce info exchange in PCE for multi-layer networks
OWK6 Implementing a path computation element (PCE) to encompass physical impairments in transparent networks
Cugini / CNIT, SSSA (Italy)
PCE with physical impairment constraints
Cross-Layer DesignCode Title Author/Affiliate Topic Trends
OWR1 Impairment constraint based routing in mesh optical networks
Tomkos / GMAIT (Greece)
Impairment-aware routing with perf. monitoring and modeling
Routing to alleviate physical impairments
OWR2 Impairment-aware waveband switching in optical networks
Yen / Shih-Hsin Univ., ICRI, UC Davis
Impairment-aware traffic grooming
OWR3 Moving towards upgradeable all-optical networks through impairment-aware RWA algorithm
Zulkifli / Univ. of Essex (UK)
Impairment-aware routing for 10 Gb/s and 40 Gb/s demands
OWR4 Provisioning in ultra-long-haul optical networks
Rai / UC Davis, Fujitsu
Routing with impairment constraints and 3R consideration
Cross-Layer DesignCode Title Author/Affiliate Topic Trends
OWR5 QoS-aware RWA algorithms for path-protected DWDM networks
Zhai / George Washington Univ., Univ. of Virginia
RWA with path protection schemes
OWR6 Enabling ASON routing via novel signal quality metrics
Li / NICT, ARC (Australia)
Routing with physical consideration in ASON
OWR7 Scheduling and routing of sliding scheduled lightpath demands in WDM optical networks
Saradhi / Inst. Of Info. Res., NUS (Singapore)
Time conflict resolving scheme and two routing algorithms
Optical Packet Switching
Code Title Author/Affiliate Topic Trends
OThF2 Multi-stage SOA switch fabrics: 4X40Gb/s packet switching and fault tolerance
Aw / Univ. of Cambridge, Intel
Packet switching with multi-stage SOA
Demonstrations of various OPS routers/ switches
OThF3 Petabit-per-second routers: case for all-optical over electronic implementation
Yoo / UC Davis Pros and cons of all-optical routers
OThF4 Experimental demonstration of a label-switched and 50GHz channel spacing DWDM network with 50Gb/s DQPSK payload and 3.125Gb/s inversion-RZ OOK label
Yu / NEC, ATT GeorgiaTech
Inversion-RZ pulse signal employed in RZ-DQPSK payload / channel and 50GHz channel spacing
Optical Packet Switching
Code Title Author/Affiliate Topic Trends
OThF5 Low-cost, scalable optical packet switching networks with multi-wavelength labels
Seddighian / Laval Univ., Univ. of Toronto
Self-forwarding OPS network
OThF6 Experimental demonstration of an optical-label-switching router architecture supporting selective 3R regeneration
Zhu / UC Davis An optical-label-switching router with 3R regeneration ability
OThF7 Experimental demonstration of a complete SPINet optical packet switched interconnection network
Shacham / Columbia Univ.
4X4 photonic interconnection network
Optical Network SurvivabilityCode Title Author/Affiliate Topic Trends
OThJ1 Service Availability in optical network design
Jaeger / T-systems (Germany)
Survivability concepts in NG IP over optical networks
Emphasis on SLA guarantee
IP over optical networks
OThJ2 Meeting SLAs by design: a protection scheme with memory
Gerstel / Cisco, Univ. of Hawaii
SLA-guaranteed protection by tracing service outage
OThJ3 Impacts of multiple backups and multi-link sharing among primary and backups for dynamic service provisioning in survivable mesh networks
Song / UC Davis 1+N provisioning with link sharing among primary and backups
Optical Network SurvivabilityCode Title Author/Affiliate Topic Trends
OThJ4 Backup reprovisioning after shared risk link group (SRLG) failures in survivable WDM mesh networks
Shao / Inst. for Info. Res. (Singapore)
Backup reprovisioning after SRLG failures
OThJ5 Survivable differential delay aware multi-service over SONET/SDH networks with virtual concatenation
Huang / UC Davis, Intel
Differential-delay compensation routing
OThJ6 Novel redundancy design methodology for an optimal PON protection architecture
Kim / ICU, ETRI (Korea)
Redundancy-aware survivable PON
OThJ7 Towards a cryptanalysis of spectral-phase encoded optical CDMA
Goldberg / Princeton, Telcordia
Security analysis in OCDMA
Carrier ServicesCode Title Author/Affiliate Topic Trends
OThQ2 Multi-area MPLS/GMPLS interoperability trial over 14-verndor packet/TDM/ROADM/OXC network
Imajuku / NTT, etc
MPLS/GMPLS interoperability analysis
Dynamic higher bandwidth services
Traffic grooming
Emphasis on MPLS and inter-working
OThQ3 Dynamic traffic grooming of subwavelength connections with known duration
Tornatore / Politecnico, Blade, UC Davis
Traffiic grooming with holding-time awareness
OThQ4 Approaches to support various types of traffic in WDM networks
Liu / SUNY Provisioning and grooming to supprot various traffic types
OThQ5 Theoretical and experimental study of statistical decision method for link capacity adjustment in photonic IX
Yamamoto / NTT, etc
Link capacity adjustment method
OCDMACode Title Author/Affiliate Topic Trends
OMO1 Demonstration of 16-user OCDMA over 3-wavelength WDM using 511-chip, 640 Gchip/s SSFBG En/Decoder and single light source
Hamanaka / Osaka Univ.
An OCDMA system with < 640 GHz frequency interval
High-performance OCDMA system design
OMO2 Demonstration of a 16-channel code-reconfigurable OCDMA/DWDM system
Tian / Optoelectronics Res. Ctr., UK
An OCDMA system with 50 GHz channel spacing and error free performance
OMO3 Resiliency of OCDM-PON against near-far problem
Ohara / KDDI, UC Davis
Resiliency of OCDM-PON
OCDMACode Title Author/Affiliate Topic Trends
OMO4 Network performance evaluation of end-to-end application over SPECTS OCDMA testbed
Hu / UC Davis End-to-end applications over SPECTS OCDMA network
OMO5 Spectrally efficient DPSK-OCDMA coherent system using integrated ring-resonator-based coders
Agarwal / Telcordia
A multi-user spectral phase encoded OCDMA system
OMO6 Variable bit rate optical CDMA networks using multiple pulse position modulation
Arbab / USC A variable bit rate OCDMA system
OMO7 SPECTS O-CDMA 80.8-km BOSSNET field trial using a compact, fully integrated, AWG-based encoder/decoder
Hernandez / UC Davis, MIT
Encoding/decoding of SPECTS OCDMA signals
Conclusions
Trends Survivability in NG networks
SLA guaranteed service provisioning traffic grooming and “Bandwidth on-demand”
Cross-Layer design Impairment-aware routing techniques
Optical packet switching / optical burst switching OPS switches and routers TCP / Ethernet over OPS OBS for access and metro networks
Conclusions (Contd.)
Trends Optical network architectures
Waveband switching and efficient provisioning Role of ROADMs
Network control and management Ethernet over WDM
Carrier services MPLS and interworking
Service Provider Summit Attendees
Korea Telecom NTT Verizon Telcordia, etc
Trends Expand from core competency to neighboring field IP is a clear winner in triple-play Broadband home router (BHR) for service convergence PON evolution Security
WDM PONCode Title Author/Affiliate Topic Trends
OWL1 Recent research activities of WDM-PON in Korea
Soo Jin Park / KT
DWDM-PON;
Colorless R-SOA, FP-LD
Long-Reach;
Novel Amplifier;
Colorless;OWL2 A hybrid-amplified PON with 75-mn downstream bandwidth, 60 km reach, 1:64 split and multiple video services
Han Hyub Lee/ AT&T
Symmetric 2.488 Gpbs;
60 reach;
SOA-Raman hybrid amplifier
OWL3 A cost-effective WDM-PON config. employing innovative bi-directional amplification
Ming/Georgia Tech
Bidirectional amplifier;
100 km SSMF with 0.8 dB
OWL4 Experimental upstream demonstration of a long-reach wavelength-converting WDM-PON with DWDM backhaul
Darren P. Shea/ Univ. College London
38.8 Mbps/user;
1:64 split;
2.5 Gbps/channel
120km reach;
w/l conversion *
WDM PON (Contd.)
Code Title Author/Affiliate Topic Trends
OWL5 42dB loss budget hybrid WDM-CDM-PON without optical amplifier
Hideyuki/OKI Elec. Industry Co., Ltd.
62.5 Mbps/user;
1:32 split;
16 w/l;
100km reach
CDM*
OWL6 Optical VPN connecting ONUs in Different PONs
Yue/Shanghai Jiao Tong Univ.
Optical-layer VPN among ONUs**;
OWL7 Economic Evolution from EPON to WDM-overlaid PON employing a wavelength conversion node
Youngil Park/
Kookmin Univ.
Colorless ONU;
Wavelength conversion node
Hybrid Optical Wireless
Code Title Author/Affiliate Topic Trends
OThM1 Hybrid optical-wireless network
Sudhir/Nokia Motivation, industry viewpoints, key barriers & solutions
OThW2 A novel full-duplex wavelength-reuse optical-wireless arch. with directly modulated SOA as upstream colorless amplified modulator
Zhensheng/ Georgia tech
Optical phase modulator and interleaver for downstream;
Wavelength-reuse for upstream
OThW3 MARIN hybrid optical wireless access network
Wei/Stanford Hybrid network for metro, consisting of wireless mesh and reconfigurable optical backhaul
Hybrid Optical Wireless (Contd.)Code Title Author/Affiliate Topic Trends
OThM4 RADAR: Risk-and-delay aware routing algorithm in a hybrid wireless-optical broadband access networks (WOBAN)
Suman/UCD Minimize packet delay and reduce packet loss for multiple failures
OThM5 Demonstration of a novel WDM-PON access network compatible with ROF system to provide 2.5 Gb/s per channel symmetric data services
Jianjun/ NEC lab
Radio-on-fiber (ROF) with 2.5 Gbps symmetric data services
OThM6 1.92 Gb/s MB-OFDM ultra wide band radio transmission over low broadband multimode fiber
Anna/France Telecom
Using low bandwidth fiber to transmit 3*640 Mb/s UWB over 500 m
Hybrid Optical Wireless (Contd.)Code Title Author/Affiliate Topic Trends
OThM7 Simultaneous modulation and transmission of FTTH baseband and radio signals on a single wavelength
Chunting/Natl. Chiao-tung Univ.
Mixed signal transmission
Conclusions
Trends Colorless WDM-PON
Possible physical layer devices Injection locked FD-LD R-SOA ECL Wavelength converter
Long-Reach Access Novel amplifier
SOA-ROMAN Bidirectional EDFA
Hybrid Access Radio on Fiber (ROF)
Recent Research Activities of WDM-PON in Korea
MDU (Multiple Dwelling Unit environment)remote node (ONU) is outdoor and powered
up to 24 user port at ONUSDU (Single Dwelling Unit environment)
wavelength is splitted
A hybrid-amplified PON with 75-mn downstream bandwidth, 60 km reach, 1:64 split and multiple video services
Fig. 7. Experimental setup of extended and service-upgraded PON using an extender box
Ultra broadband gain (up to 80-nm bandwidth)
SOA-Raman Hybrid Amplifier (SRHA)
A Cost-Effective WDM-PON Configuration EmployingInnovative Bi-directional Amplification
Fig. 8. Bi-directional Amplifier Fig. 9. System Architecture
After 100-km SSMF transmission, the power penaltyfor all channels at 10Gbit/s is less than 0.8 dB.
Experimental upstream demonstration of a long-reach wavelength-converting WDM-PON with DWDM backhaul
1. Optical transmitter with precise wavelength control needs thermal control.2. Increase cost of ONU.3. Un-cooled laser is cheap, but introduces wavelength drifting.
Fig. 10. System Architecture
Paper Author Reach Rate Split New Tech.
A hybrid-amplified PON with 75-mn downstream bandwidth, 60 km reach, 1:64 split and multiple video services
Han Hyub Lee/ AT&T
60 km Symmetric 2.488 Gpbs;
1:64 SOA-Raman hybrid amplifier
A cost-effective WDM-PON config. employing innovative bi-directional amplification
Ming/Georgia Tech
100 km Symmetric 10 Gpbs;
No Bidirectional amplifier;
SSMF with 0.8 dB
Experimental upstream demonstration of a long-reach wavelength-converting WDM-PON with DWDM backhaul
Darren P. Shea/ Univ. College London
120 km 2.5 Gbps/channel
38.8 Mbps/user;
1:64 w/l conversion *
42dB loss budget hybrid WDM-CDM-PON without optical amplifier
Hideyuki/OKI Elec. Industry Co., Ltd.
100 km 1:32 Code Division Multiplexing (CDM)
Optical VPN Connecting ONUs in Different PONs
VPN can only connects ONUs of the same color.
Fig. 11. VPN across different PONs