Title :
Constant Offset Autonomous Spectrum Balancing Using Multiple Reference Lines for VDSL
Author :
Huberman, Sean ; Leung, Christopher ; Le-Ngoc, Tho
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada
Abstract :
The use of Lagrange multiplier offsets improves the iterative water-filling algorithm for digital subscriber line systems. We present a technique for generating constant offsets using a virtual network of reference lines. We provide simulation results that show that the achievable performance is very close to that of existing state-of-the-art algorithms, while requiring significantly fewer time-consuming interference measurements and reducing the amount of message passing required.
Keywords :
digital subscriber lines; iterative methods; Lagrange multiplier offsets; VDSL; constant offset autonomous spectrum balancing; digital subscriber line systems; interference measurements; iterative water-filling algorithm; multiple reference lines; Clustering algorithms; Crosstalk; Message passing; Noise measurement; Optimization; Resource management; Digital subscriber line; dynamic spectrum management; power allocation; resource allocation;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2012.2215606