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Bandwidth provisioning in ADSL access networks
Author(s) -
Xiong Kaiqi,
Perros Harry,
Blake Steven
Publication year - 2009
Publication title -
international journal of network management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.373
H-Index - 28
eISSN - 1099-1190
pISSN - 1055-7148
DOI - 10.1002/nem.718
Subject(s) - asymmetric digital subscriber line , computer network , computer science , digital subscriber line , broadband , access network , bandwidth (computing) , ethernet , provisioning , dimensioning , ethernet over sdh , multiplexer , telecommunications , multiplexing , ethernet flow control , engineering , aerospace engineering
We consider an ADSL access network consisting of subscribers, digital subscriber line access multiplexers (DSLAMs), metro Ethernet switches and a broadband remote access aggregation server (BRAS). We obtain expressions for dimensioning the access network in the upstream direction. Specifically, we show that the bandwidth required at each DSLAM, metro Ethernet switch, and BRAS can be expressed as an exponential function of the subscribers in a log scale when the number of subscribers does not surpass a certain value. After this value, it grows linearly as a function of the subscribers. Copyright © 2009 John Wiley & Sons, Ltd.