optical network Resources

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The Evolution of the Optical Network: Service providers are extending fiber deeper into the access network than ever before to meet the higher bandwidth demands of consumers. The high bandwidth requirements generated by new triple- and quadruple-play services, particularly in the video arena, are rapidly exhausting the capabilities of legacy copper infrastructures in the access network....; Tags: Optical Network, Fiber, Network Technology, Networking; White papers 2008-06-01
Capacity Allocation in Optical Networks Under Dynamic Lightpath Demands: Efficient planning of optical networks requires an allocation of network capacity subject to certain economic or capacity constraints so that a forecasted network lightpath demand matrix or other performance objectives can be satisfied. Much research on optical networks has concentrated on static design, which aims to either minimize the maximal...; Tags: Optical Network, Matrix, Network, Network Capacity, Allocation, Optical Society Of America, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2008-01-22
Insecurity in ATM-Based Passive Optical Networks: This paper considers the security of an ITU standard for ATM-based passive optical networks. First, it shows that the standard's encryption algorithm, called churning, has an effective 8-bit key length and thus is trivial to break with exhaustive keysearch. Second, it shows that the authentication mechanisms have significant weaknesses. The...; Tags: Optical Network, University Of California, ATM, Fiber Optics, Optical Networking, Networking, Network Technology, Security, Telecommunications; White papers 2008-01-01
Light-Trail Testbed for Metro Optical Networks: Telecommunication networks have rapidly added staggering amounts of capacity to their long haul networks at low costs per bit using DWDM technologies. Concurrently, there has been a wave of new access technologies that are driving customers to demand high-speed, robust and customized data services. These dynamics have led to what...; Tags: Iowa State University, Optical Network, Network, FPGA, Streaming Media, Web Site Development, Web Technology, Optical Networking, Fiber Optics, Digital Media, Networking, Internet, Telecommunications, Consumer Electronics, Personal Technology; White papers 2008-01-01
CARRIOCAS Project: An Experimental High Bit Rate Optical Network for Computing Intensive Distributed Applications: CARRIOCAS project studies and implements an ultra high bit rate (up to 40 Gb/s per wavelength) network interconnecting super computers, storage servers and high resolution visualization device to support data and computing intensive applications in industrial and scientific domains. The R&D activities cover high bit rate transmission systems, advanced networking...; Tags: Lucent Technologies Inc., Optical Network, Network, Computing, Alcatel, Research & Development, Networking, Business Operations; White papers 2007-12-06

Worst-Case Analysis of Dynamic Wavelength Allocation in Optical Networks: This white paper considers Wavelength Division Multiplexed WDM optical networks. WDM networks use multiple communication channels over a single optical fiber. The channels are at different wavelengths. These networks support lightpaths, which are end-to-end circuit-switched communication connections that traverse one or more links and use one WDM channel per link.; Tags: Optical Network, Wavelength, Allocation, University Of Hawaii, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-11-08
Long Reach Passive Optical Networks: The paper discusses recent progress in the development of optically amplified, long reach passive optical networks, which aim to significantly reduce network complexity and cost by integrating metro and access into a single, all-optical communication system. Fiber-To-The-Premises FTTP has been envisaged for a long time as an attractive future access...; Tags: Optical Network, Network, Broadband, IEEE, Fiber Optics, Optical Networking, Video On Demand (VoD), Broadband Internet, Networking, Network Technology, Modems, Telecommunications, Personal Technology, Home Entertainment, Hardware, Components; White papers 2007-11-05
2007 Worldwide Interoperability Demonstration: On-Demand Ethernet Services Across Global Optical Networks: The 2007 OIF Worldwide Interoperability Demonstration shows end-to-end provisioning of dynamic switched Ethernet services over multiple, control-plane enabled intelligent optical core networks through the use of OIF implementation agreements of UNI 2.0 and E-NNI. In-service Ethernet bandwidth modification and control plane discovery and failure recovery are new features which are...; Tags: Interoperability, Optical Network, On-demand, Optical Internetworking Forum, Ethernet, Networking, Network Technology, Routers & Switches; White papers 2007-09-10
A Self-Organizing Control Plane for Failure Management in Transparent Optical Networks: Self-organizing systems are present in many areas of nature and science, and have more recently been increasingly applied to telecommunications. These systems often exhibit common structural properties, such as the small-world property, and can react to changes in their environment with no centralized control. With ever-increasing capacity requirements, Transparent Optical...; Tags: Optical Network, University Of Zagreb, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-07-03
1.25 - 10 Gbit/s Reconfigurable Access Network Architecture: This paper proposes a novel reconfigurable access network architecture which enables the bidirectional transmission of 1.25 - 2.5 Gbit/s. Optical Network Units ONUs are equipped with a Reflective Semiconductor Optical Amplifier RSOA and Remote Nodes RNs are based on microring resonators - both contribute to network transparency and flexibility. The...; Tags: Optical Network, Microsoft Access, Network, IEEE, Optical Network Unit, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-06-14
Transparent Optical Network Design With Sparse Wavelength Conversion: This paper considers the design of transparent optical networks from a practical perspective. Network operators aim at satisfying the communication demands at minimum cost. Such an optimization involves three interdependent planning issues: the dimensioning of the physical topology, the routing of lightpaths, and the wavelength assignment. Further topics include the...; Tags: Optical Network, Zuse-Institut Berlin, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-06-13
Analysis of Randomized Scheduling Algorithm for a Practical Bufferless Optical Network: This paper evaluates a plausible bufferless star-based packet-switched optical network. A randomized scheduling algorithm is used to resolve contention, alleviating the need for a centralized controller to coordinate the edge nodes. A bipartite graph matching algorithm is proposed to be used at the core node to minimize the packet drop...; Tags: Algorithm, Optical Network, IEEE, Analysis, Scheduling Algorithm, Fiber Optics, Optical Networking, Engineering, Networking, Telecommunications; White papers 2007-06-01
TCP Sending Rate Control at Tera Bits Per Second: An analysis of the sending rate of TCP control over Terabit per second rate links illustrates how future optical network characteristics, such as higher bitrates, network congestion, and larger data loads, would affect performance. This paper has implemented a model to allow increased sending rate for TCP. It is shown...; Tags: University Of Cambridge, Optical Network, TCP, Tcp/Ip, Networking, Fiber Optics, Telecommunications; White papers 2007-05-31
Federated Grid Clusters Using Service Address Routed Optical Networks: Clusters of computers have emerged as cost-effective parallel and/or distributed computing systems for computationally intensive tasks. Normally, clusters are composed of high performance computational nodes linked together by low-latency/high-bandwidth interconnection networks. With the advent of modern optical networking technologies, geographically distant clusters can be federated to yield systems considered tightly-coupled....; Tags: Optical Network, Reed Elsevier Inc., Distributed Computing, Grid, Fiber Optics, Optical Networking, Networking, Cloud Computing, Network Technology, Telecommunications; White papers 2007-05-05
Raman Crosstalk Suppression in CATV Overlay Passive Optical Network: In CAble TeleVision CATV overlay Passive Optical Networks PONs, where a CATV signal copropagates with a downstream baseband signal, the crosstalk components mediated by Stimulated Raman Scattering SRS limit the performance of low-number CATV channels. This paper proposes and demonstrates a way of reducing the SRS-induced crosstalk in CATV overlay...; Tags: Optical Network, IEEE, CATV, Cable, TVs, Fiber Optics, Optical Networking, Tv & Home Theater, Network Technology, Networking, Telecommunications, Personal Technology, Home Entertainment; White papers 2007-05-01
Finding Elephant Flows for Optical Networks: Optical networks are fast and reliable networks that enable, amongst others, dedicated light paths to be established for elephant IP flows. Elephant IP flows are characterized by being small in number, but long in time and high in traffic volume. Moving these flows from the general IP network to dedicated...; Tags: Optical Network, Elephant, Network, IP, IP Network, Networking, Network Technology; White papers 2007-04-30
Self-Management of Lambda-Connections in Optical Networks: This paper presents a new idea for the management of lambda-connections in optical networks. The idea consists of making multi-service optical switches responsible for automatically detecting IP flows at the packet-level, creating lambda-connections for them, and moving them to the optical-level. In addition to that, they are also in charge...; Tags: Optical Network, Springer Science+Business Media, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-04-20
Multi-Uplink Passive Optical Networks: Passive Optical Network PON is one of the important access network technologies to provide end users the cost effective broadband services. The coverage of a PON is mainly restricted by the optical signal loss between the Optical Line Terminal OLT and the K Optical Network Units ONUs. Even if the...; Tags: Optical Network, Fiber, Optical Society Of America, Passive Optical Network, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-04-03
Performance Analysis of Optical Burst Switching High-Speed Network Architecture: The development of wavelength division multiplexing opens a new horizon in optical networks and promises to be one of the best solutions for the high demand of the bandwidth. However, with this technology, many problems arise, especially those related to the architecture to be used in optical networks to take...; Tags: Optical Network, Performance, Architecture, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-04-01
Design and Implementation of GMPLS-Basd Optical Slot Switching Network With PLZT High-Speed Optical Switch: This paper proposes a new optical network architecture, called Optical Slot Switching OSS, suitable for large data transmission where it uses PLZT optical switch controlled by GMPLS(Generalized Multi-Protocol Label Switching). PLZT ultra-high speed optical switch can improve the bandwidth efficiency by reducing the guard time between data compared with the...; Tags: Optical Network, Network, Data Transmission, Switch, Fiber Optics, Optical Networking, Networking, Telecommunications; White papers 2007-03-27