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JSAC
2006

Multiuser Margin Optimization in Digital Subscriber Line (DSL) Channels

8 years 11 months ago
Multiuser Margin Optimization in Digital Subscriber Line (DSL) Channels
Abstract--This paper presents efficient multiuser margin optimization algorithms suitable for multicarrier digital subscriber line (DSL) systems using Dynamic Spectrum Management (DSM). The favorable monotonicity and fairness properties of multiuser margin are employed to formulate a box-constrained nonlinear least squares (NLSQ) problem for multiuser margin maximization, which is efficiently solved by using a scaled-gradient trust-region approach with Broyden Jacobian update. Based on this NLSQ formulation, a multiuser harmonized margin (MHM) optimization algorithm for resource allocation is developed. A Newton
Saswat Panigrahi, Yang Xu, Tho Le-Ngoc
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2006
Where JSAC
Authors Saswat Panigrahi, Yang Xu, Tho Le-Ngoc
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