Publication

Resource Utilisation Analysis in WDM Backbone Networks

Christian Gaumier, Sébastien Rumley
2011
Conference Papers

Abstract

Circuit-switched backbone networks are appealing especially due to their low switching cost. However, some of their links may be poorly utilised with respect to the available capacity. Grooming can be used to improve this utilisation: optically switched lightpaths are groomed in fibres using WDM, and flows are groomed in lightpaths using TDM. However, grooming require more transmission resources if lightpaths/flows are not following the shortest-path and take detours. It can thus be counterproductive.

Official source

https://infoscience.epfl.ch/entities/publication/70a018ca-bdf7-4d97-91ca-c8314f63e053

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Christian Gaumier, Sébastien Rumley
2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/70a018ca-bdf7-4d97-91ca-c8314f63e053

About this result

Related concepts (17)

Wavelength-division multiplexing

In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e., colors) of laser light. This technique enables bidirectional communications over a single strand of fiber, also called wavelength-division duplexing, as well as multiplication of capacity. The term WDM is commonly applied to an optical carrier, which is typically described by its wavelength, whereas frequency-division multiplexing typically applies to a radio carrier which is more often described by frequency.

Computer network

A computer network is a set of computers sharing resources located on or provided by network nodes. Computers use common communication protocols over digital interconnections to communicate with each other. These interconnections are made up of telecommunication network technologies based on physically wired, optical, and wireless radio-frequency methods that may be arranged in a variety of network topologies. The nodes of a computer network can include personal computers, servers, networking hardware, or other specialized or general-purpose hosts.

Packet switching

In telecommunications, packet switching is a method of grouping data into packets that are transmitted over a digital network. Packets are made of a header and a payload. Data in the header is used by networking hardware to direct the packet to its destination, where the payload is extracted and used by an operating system, application software, or higher layer protocols. Packet switching is the primary basis for data communications in computer networks worldwide.

Related publications (1)

Resource Utilisation Analysis in WDM Backbone Networks

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Measurement and Analysis of Single-Hop Delay on an IP Backbone Network