Author(s):

M. N. Fonseca, D. M. Neves, A. C. Gomes, M. M Conte, B. Dortschy, K. Ericson, J. Rius I Riu, E. Pelaes and A. Klautau

XXV Simpósio Brasileiro de Telecomunicações - SBRT 2007, 03-06 September 2007, Recife, PE.

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Evaluation of DSM Performance with Mixed DSL Services and Measured Crosstalk Channels (pdf)

Abstract:
In most works published so far, dynamic spectrum management (DSM) techniques are simulated assuming a single service (e.g. ADSL) and classical copper-pair channel models described in standards for spectrum management. This work presents an evaluation of DSM algorithms based on measured channels and with multiple services. A measurement campaign was performed to completely characterize scenarios by measuring the direct and far-end crosstalk transfer functions. Results for a total of two scenarios of ten twisted pairs (200 measurements), involving both equal and non-equal length cables are presented. The work also presents a thorough investigation of state-ofart DSM algorithms (namely, ISB, ASB, SCALE and IWF) simulated in multiple services (namely, ADSL, ADSL2+ and VDSL2) scenarios.

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