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Traffic in backbone networks continues to grow at rapid pace. The bulk of this growth comes from low revenue internet traffic. Naturally, this raises interest in lowering the costs of building and mai...
Benefits of Closer and Methods for Automatic Cooperation between Packet and Transport Networks
Benefits Closer and Methods Transport Network
2011/5/18
When Packet and Transport networks operate autonomously, performance degradations and inefficiencies can occur. Closer automatic cooperation between Packet and Transport networks results in improved p...
On the Spectrum-Efficiency of Bandwidth-Variable Optical OFDM Transport Networks
Spectrum-Efficiency Bandwidth-Variable Optical OFDM Transport Networks
2010/6/10
We investigated the high spectrum efficiency property of the bandwidth-variable optical OFDM (BV-OOFDM) transport networks. In contrast to mixed-line-rate (MLR) networks, BV-OOFDM enables flexible all...
several architectural aspects and options are discussed for producing video based services: storage and transcoder placement, routing and (staggered) multi-casting,buffering/smoothing and reti...
High-Speed Electronic Circuits for 100 Gb/s Transport Networks
Fiber optics communications Fiber optics links subsystems
2010/6/8
An overview of state-of-the-art high-speed electronic circuits for major 100G modulation schemes is given. The results show the trade-off between electrical performance and energy efficiency and lead ...
Challenges of 40/100 Gbps deployments in long-haul transport networks on existing fibre and system infrastructure
Optical communications Modulation
2010/6/5
High-bandwidth services require faster long-haul transport networks. Meanwhile operators are not ready to make evolve significantly their fibre infrastructure based on PMD-limited G.652 fibre while th...
A Systematic Approach to Develop and Manage SRLGs for Optical Transport Networks with Multi-Tier Resources
General
2010/6/5
This paper presents a generalized framework that characterizes multi-tier resource dependency and operators’ diversity policies in transport networks. The framework enables the design of systematic ap...
100GbE Optical Transport, Appropriate Modulation Formats, and Impact on Deployed Transport Networks
100GbE Optical Transport Appropriate Modulation Formats Impact Deployed Transport Networks
2010/6/5
We review the system requirements for 100GbE optical transport and compare possible technical solutions. Our experience, derived from modeling, laboratory experiments and field trials on deployed tran...
The NOBEL2 Approach to Resilience in Future Transport Networks
NOBEL2 Approach Resilience Future Transport Networks
2008/8/3
IST project NOBEL2 results on resilience strategies for next-generation optical transport networks are presented,paving the way towards cost-effective, scalable and easy-to-maintain multi-service netw...
ASON/GMPLS Control Plane Solutions for Transport Networks
ASON/GMPLS Control Transport Networks
2008/7/30
An overview is given of ASON/GMPLS control plane capabilities and opportunities, the current status of standardisation as well as of application – control plane interworking solutions. Finally example...