DocumentCode :
2141045
Title :
Comparison of quasi-regular composite-star and multi-hop structures for core networks
Author :
Secci, Stefano ; Rougier, Jean-Louis ; Pattavina, Achille
Author_Institution :
TELECOM ParisTech, Paris
fYear :
2008
fDate :
15-17 May 2008
Firstpage :
229
Lastpage :
234
Abstract :
A novel composite-star architecture, nicknamed the Petaweb, has been recently proposed for high capacity optical core networks. Its topologic structure is such that electronic edge nodes are always connected to each other through a single core switch, and that the core switches are disconnected. The aim is to simplify the traffic engineering and the upgradeability of core networks. In its regular form, this architecture suffers from high fiber cost and low utilization. A recent work tackles the problem of directly designing a quasi-regular composite-star structure, showing that the network cost can get more than halved and that the resources utilization can be significantly improved. In this paper, we compare the quasi-regular composite-star structure to classical irregular multi-hop structures. We show that increasing the weight of a propagation delay virtual cost in the design dimensioning objective function, multi-hop core networks tend to assume a quasi-regular composite-star like topologic structure, with a few core fibers. This suggests that such an architecture is the natural solution whether length-dependent additive costs are considered as part of the design dimensioning objective.
Keywords :
optical fibre networks; optical switches; telecommunication network topology; Petaweb; core switches; dimensioning objective function; electronic edge nodes; length-dependent additive costs; multihop structures; optical core networks; quasi-regular composite-star structure; traffic engineering; Asynchronous transfer mode; Circuit topology; Cost function; Network topology; Optical fiber networks; Optical switches; Propagation delay; Protection; Spread spectrum communication; Telecommunication traffic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
High Performance Switching and Routing, 2008. HSPR 2008. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1981-4
Electronic_ISBN :
978-1-4244-1982-1
Type :
conf
DOI :
10.1109/HSPR.2008.4734448
Filename :
4734448
Link To Document :
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