Optimal Power Allocation for Downstream xDSL With Per-Modem Total Power Constraints: Broadcast Channel Optimal Spectrum Balancing (BC-OSB)

Nir, Vincent Le; Moonen, Marc; Verlinden, Jan; Guenach, M.

doi:10.1109/tsp.2008.2007925

Cited by 16 publications

(1 citation statement)

References 12 publications

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“…A conventional way to solve this problem is by using MAC-BC duality [48], [49], which states that it is possible to achieve the same set of data rates in the MAC and BC under the same total power constraint [50]. Hence, instead of directly solving (45) for the DS, its dual US problem is solved, which is only a function of the US transmit powers [51], [52], and the optimal transmit powers in the DS can then be derived from the US transmit powers. However, finding the optimal FDMA through power allocation in DS P2MP transmission using MAC -BC duality is not efficient, due to the complexity involved, in particular due to the optimal power allocation and sustained rate constraints.…”

Section: Volume 11mentioning

confidence: 99%

Resource Sharing Strategies for Point-to-Multipoint Distribution in Next-Generation DSL Networks

Sharma,

Moonen,

Lefevre

et al. 2023

IEEE Open J. Commun. Soc.

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This research work was carried out at the ESAT Laboratory of KU Leuven, in the frame of Fonds de la Recherche Scientifique -FNRS and Fonds Wetenschappelijk Onderzoek -Vlaanderen EOS Project no 30452698 '(MUSE-WINET) MUlti-SErvice WIreless NETwork', Research Project FWO nr. G.0B1818N 'Real-time adaptive cross-layer dynamic spectrum management for fifth generation broadband copper access networks', VLAIO O&O Project nr. HBC.2017.1007 '(MIA) Multi-gigabit Innovations in Access'. The scientific responsibility is assumed by its authors.

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Section: Volume 11mentioning

confidence: 99%

Resource Sharing Strategies for Point-to-Multipoint Distribution in Next-Generation DSL Networks

Sharma,

Moonen,

Lefevre

et al. 2023

IEEE Open J. Commun. Soc.

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Dynamic Spectrum Management in Digital Subscriber Line Networks With Unequal Error Protection Requirements

Verdyck

Moonen

2017

IEEE Access

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Optimal Dynamic Spectrum Management Algorithms for Multi-User Full-Duplex DSL

et al. 2019

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Driven by the exceedingly high data rates achieved in single-user implementations, interest in a multi-user (MU) full-duplex (FDX) transmission for digital subscriber line (DSL) networks is surging. However, near-end crosstalk (NEXT) is no longer avoided in such networks, and hence, appropriate dynamic spectrum management (DSM) techniques are needed. Therefore, this paper proposes three novel DSM algorithms for the MU FDX DSL network. First, an optimal spectrum balancing (OSB) algorithm is derived that calculates the globally optimal resource allocation but does so at an exceedingly high computational cost. The key to this algorithm is a novel multiple access channel broadcast channel (MAC-BC) duality for the specific case of perfect NEXT cancellation at the distribution point unit. The two low-complexity distributed spectrum balancing (DSB) algorithms are then proposed, for which simulations show that their performance is very close to what is achieved by the OSB algorithm. Therefore, these DSB algorithms can be used to estimate the achievable performance of an MU FDX DSL network. Such performance estimations show that the FDX transmission can indeed lead to significant gains in MU DSL networks as well.INDEX TERMS DSL, dynamic spectrum management, G.mgfast, multi-user full-duplex, vectoring.

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Optimal Power Allocation for Downstream xDSL With Per-Modem Total Power Constraints: Broadcast Channel Optimal Spectrum Balancing (BC-OSB)

Abstract: Recently, the duality between Multiple Input Multiple Output (MIMO) Multiple Access Channels (MAC) and MIMO Broadcast Channels (BC)

Cited by 16 publications

References 12 publications

Resource Sharing Strategies for Point-to-Multipoint Distribution in Next-Generation DSL Networks

Resource Sharing Strategies for Point-to-Multipoint Distribution in Next-Generation DSL Networks

Dynamic Spectrum Management in Digital Subscriber Line Networks With Unequal Error Protection Requirements

Optimal Dynamic Spectrum Management Algorithms for Multi-User Full-Duplex DSL

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