optical burst switching

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Optical Burst Switching (OBS): A New Area in Optical Networking Research

This paper gives an introduction to optical burst switching OBS and compares it with other existing optical switching paradigms. Basic burst assembly algorithms and their effect on assembled burst traffic characteristics are described first. Then a brief review of the early work on burst transmission is provided followed by the...

Tags: Optical Burst Switching, Engineering, Performance Management, Optical Networking, Tcp/Ip, Networking, Human Resources, Workforce Management

White papers 2008-01-01

Latency in Grid Over Optical Burst Switching With Heterogeneous Traffic

Optical Burst Switching OBS has been proposed as the next generation optical network for grid computing. This paper envisions a heterogeneous Grid served by an Optical Burst Switching framework, where grid traffic co-exists with IP and/or a 10 GE based traffic to achieve economy of scale. This paper addresses the...

Tags: Latency, Traffic, Optical Burst Switching

White papers 2007-09-07

The Impact of Burst Switching on TCP Performance

Optical Burst Switching OBS has brought a new switching paradigm for transparent all optical networks by getting rid of buffers at core nodes. Main features of OBS are burst assembly and delayed reservation. In an OBS network, input traffic is aggregated to generate a big sized data burst at an...

Tags: TCP, Optical Burst Switching, Tcp/Ip, Networking

White papers 2006-11-01

Burst Routing Planning for Optical Networks Using the Association Rule Approach

The Optical Burst Switching OBS is a technology positioned between Optical Circuit Switching OCS and Optical Packet Switching OPS. It is a promising buffer-less DWDM switching technology that provides high wavelength utilization. One of the critical design issues in OBS network is effective planning in minimizing burst dropping resulted from...

Tags: Algorithm, Optical Network, Association, Optical Burst Switching, Engineering, Optical Networking, Networking, Fiber Optics, Telecommunications

White papers 2006-10-01

Additional Resources

Cost-Effective Burst-Over-Circuit-Switching in a Hybrid Optical Network

All optical switching has been proposed as a candidate to allow high capacity networking in the future. Currently, Optical Circuit Switching has been widely deployed, although this approach is potentially bandwidth-inefficient for small granularity flows and needs relatively long set-up times. Research is being done into Optical Packet Switching OPS...

Tags: Optical Network, Network, Networking, Fiber Optics, Optical Networking, Telecommunications

White papers 2008-11-10

Is wireless mesh a game-changer?

The biggest untold tech story of this decade has been the overturning of Moore's Law in the telecom sector. Despite technology breakthroughs in optical fiber, in optical switching, and in wireless transmission, you're still paying just as much for just as little bandwidth as you did a...

Tags: Dam, Wi-Fi, Wireless, Dana Blankenhorn

Blog posts 2008-05-12

Analysis and Performance Evaluation of Optical Buffers

How are future communication networks to cope with ever-increasing traffic demands? Currently, data (e.g. IP packets) handled in the back-bone network is transported optically, yet is switched electronically. Being a demanding and power-consuming process, current switches are becoming the bottleneck in the network. More recent techniques, such as Optical Packet...

Tags: Performance, Network, Buffer, Performance Evaluation, Analysis, Performance Management, Team Management, Networking, Human Resources, Workforce Management, Management

White papers 2008-01-01

Cascaded Operation of a 2R Burst-Mode Regenerator for Optical Burst Switching Network Transmission

This paper demonstrates the cascaded operation of an all-optical 2R burst-mode regenerator consisting of a single Mach - Zehnder interferometer, using a loop configuration that introduces a 6-dB power variation on each recirculation of the data. The device is shown to regenerate error-free 10-Gb/s data streams for up to six...

Tags: Network, IEEE, Networking

White papers 2007-11-15

FiOS - Verizon's long-term vision to the 10+ gigabit home

As the computer and Internet revolution blooms, the one thing that is lagging behind is broadband connectivity.  There's no question that the future of long-range high-speed telecommunication is Fiber, but different companies are taking different approaches.  While AT&T is going to try and install fiber to within a mile of...

Tags: VoIP, Technology policy, News, Networking, Infrastructure, Consumer electronics

Blog posts 2007-07-09

Optical Burst Switching Network: A Multi-Layered Approach

This paper defines a new multi-layered architecture for supporting Optical Burst Switching OBS in an optical core network. The architecture takes into account both the control plane as well as the data plane. The paper describes the functionality and the primary protocols that are required at each layer and it...

Tags: Cisco IOS, Network, Architecture, Tcp/Ip, Networking

White papers 2007-05-09

Adaptive Control in Optical Burst-Switching Networks With QoS Support

An adaptive control scheme is proposed for the transmission of packets burst in an all-optical Burst Switching network. Two levels of control have been considered: one at the triggering level for a wavelength request, and the other at the burst length level. It is believed that the proposed scheme improves...

Tags: QoS, Scheme, Fiber Optics, Networking, Telecommunications

White papers 2007-04-16

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

Optical Switching and Wire-Speed Packet Processing in Optical Backbone Networks

In this paper, the wire-speed packet processing issue is analyzed for Optical Packet/Burst Switching (OPS/OBS) switching nodes, and wavelength-routing WR switching nodes. Some assumptions are made which allow to obtain simple estimates of these values, which are then compared with the packet processing performance of commercial electronic devices which implement...

Tags: Backbone, Packet, Network, Polytechnic University, Leadership, Routers & Switches, Management, Networking

White papers 2007-03-07

Research in Optical Burst Switching Within the e-Photon/ONe Network of Excellence

This paper presents a summary of Optical Burst Switching OBS research within the VI framework program e-Photon/ONe network of excellence. The paper includes network aspects such as routing techniques, resilience and contention resolution, together with burst switch architectures. On the other hand, the author also discusses traffic analysis issues, Quality...

Tags: Physical Layer, Reed Elsevier Inc., Tcp/Ip, Networking

White papers 2006-12-14

Canon PowerShot SD800 IS

Last spring, Canon impressed us with its stylish high-end shooter, the 6-megapixel PowerShot SD700 IS. It had a great lens and produced great images, all in an attractive, pocketable, metal body. With the follow-up Canon PowerShot SD800 IS, the company improves upon its previous design by squeezing in a...

Tags: SD800 IS, Canon Inc., camera, Canon PowerShot

Product reviews 2006-10-03

Sony Cyber Shot DSC-W70

Aside from its 7-megapixel sensor, the Sony Cyber Shot DSC-W70 is physically and functionally identical to its series brethren, the 6-megapixel DSC-W50 and the 8-megapixel DSC-W100. And just like its siblings, the DSC-W70 delivers a pleasant snapshooting experience--with the photos to match--making it a good choice for many casual and...

Tags: photograph, Sony Cyber-Shot DSC-W70, Cyber-Shot DSC-W70, Sony Cyber-Shot, Sony Corp.

Product reviews 2006-07-05

Nikon Coolpix L3

The Nikon Coolpix L3 is the midrange member of Nikon's simple, inexpensive L-series digital cameras. The 5-megapixel camera sports a 3X optical zoom lens, a handful of useful scene modes, and a small price tag. It's not the fastest, sharpest, or sleekest digital camera on the market, but this little...

Tags: Coolpix L3, camera, Nikon Corp., image

Product reviews 2006-06-06

Canon PowerShot SD630

It may be small, but the Canon PowerShot SD630 is fierce. This little 6-megapixel point-and-shoot manages to pack zippy performance and snappy photos into a package you can fit in your pants pocket. If you have large hands, you'll probably find its control layout a little uncomfortable, and it doesn't...

Tags: camera, SD630, Canon PowerShot, Canon Inc.

Product reviews 2006-04-14