Title :
Band preference in dynamic spectrum management
Author :
Cioffi, John M. ; Rhee, W. ; Mohseni, M. ; Brady, M.H.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., Stanford, CA, USA
Abstract :
The use of band preference in DSL systems with dynamic spectrum management (DSM) is investigated. Specifically, band preference is a DSM center´s allocation of approximate PSD masks for subsequent use in the commonly encountered fixed-margin or “iterative” water-filling DMT DSL systems is found to improve data rates when DSL line lengths differ. The results of fully optimized spectrum management are shown to be achieved, but without the need for full central control of spectra.
Keywords :
channel allocation; digital subscriber lines; iterative methods; DSL systems; PSD masks; band preference; center allocation; dynamic spectrum management; fixed margin water-filling DMT DSL system; iterative water-filling DMT DSL system; Abstracts; Filling; Radio spectrum management;
Conference_Titel :
Signal Processing Conference, 2004 12th European
Conference_Location :
Vienna
Print_ISBN :
978-320-0001-65-7
