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Physical-Layer Multicasting Design for Downstream G.fast DSL Transmission
Lanneer, Wouter1; Liu, Ya-Feng2; Yu, Wei3; Moonen, Marc1
Source PublicationIEEE ACCESS
AbstractThis paper studies the physical-layer multicasting design for downstream G.fast digital subscriber line (DSL) transmission, which corresponds to a multi-user multi-tone (i.e., multi-carrier) scenario. The design goal is to maximize the weighted-sum-group-rate (WSGR) under per-line power constraints. First, as an information-theoretic upper bound, full-rank precoding-based multicasting is considered with joint channel coding across tones. For a single multicast group, this problem corresponds to a non-linear convex semidefinite program (SDP), which is coupled across tones. To reduce the computational complexity, a Lagrange dual decomposition method is developed. This approach is then extended toward multiple multicast groups based on difference-of-convex (DC) programming Furthermore, a practical multicasting scheme is considered based on rank-one single-stream precoding and independent per-tone channel coding. For this case, instead of relying on computationally complex semidefinite relaxation, a successive convex approximation-based trust-region algorithm is developed. Finally, the simulations of a G.fast cable binder show that the practical multicasting scheme operates close to the information-theoretic multicasting upper bound.
KeywordG.fast dynamic spectrum management physical-layer multicasting rank-one precoding
Funding ProjectESAT Laboratory of KU Leuven[HBC. 2016.0055] ; Research Project FWO "Real-Time Adaptive Cross-Layer Dynamic Spectrum Management for Fifth Generation Broadband Copper Access Networks''[G.0B1818N] ; Fonds de la Recherche Scientifique (FNRS) ; Fonds Wetenschappelijk Onderzoek-Vlaanderen through the EOS Project "MUlti-SErvice WIreless NETwork (MUSE-WINET)''[30452698] ; National Natural Science Foundation of China (NSFC)[11671419] ; National Natural Science Foundation of China (NSFC)[11688101] ; project "Multi-gigabit Innovations in Access''[HBC. 2017.1007]
WOS Research AreaComputer Science ; Engineering ; Telecommunications
WOS SubjectComputer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000484436100002
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Document Type期刊论文
Corresponding AuthorLanneer, Wouter
Affiliation1.Katholieke Univ Leuven, ESAT STADIUS Ctr Dynam Syst Signal Proc & Data An, B-3000 Leuven, Belgium
2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China
3.Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
Recommended Citation
GB/T 7714
Lanneer, Wouter,Liu, Ya-Feng,Yu, Wei,et al. Physical-Layer Multicasting Design for Downstream G.fast DSL Transmission[J]. IEEE ACCESS,2019,7:110660-110673.
APA Lanneer, Wouter,Liu, Ya-Feng,Yu, Wei,&Moonen, Marc.(2019).Physical-Layer Multicasting Design for Downstream G.fast DSL Transmission.IEEE ACCESS,7,110660-110673.
MLA Lanneer, Wouter,et al."Physical-Layer Multicasting Design for Downstream G.fast DSL Transmission".IEEE ACCESS 7(2019):110660-110673.
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