Energy-Efficient DSL Using Vectoring

Marrocco, Giuseppe; Wolkerstorfer, Martin; Nordström, Tomas; Statovci, Driton

doi:10.1109/glocom.2011.6134369

Cited by 6 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…in US and DS, respectively, ∀c ∈ C g , g ∈ G. Imperfect Vectoring may lead to residual crosstalk gains |Ȟ gg cc,FEXT | 2 and |Ĥ gg cc,FEXT | 2 , as well as modified US background noise power levels that are already included in the above noise terms [7].…”

Section: A Channel Modelmentioning

confidence: 98%

“…Differently, US rates suffer from FEXT from US transmissions and NEXT from DS transmissions, respectively. Furthermore, the lines inside a single Vectoring group may suffer from residual crosstalk among users (including self-crosstalk) [7], caused by timevarying and finite precision Vectoring channel information. We also consider ICI among lines of different Vectoring groups/technologies, which arises due to asynchronism as well as differences in modulation parameters (e.g., DMT tone spacing) [10].…”

Section: System Modelmentioning

confidence: 99%

“…This leads to strong near-end crosstalk (NEXT) at both, the network side as well as the CPE side, and far-end crosstalk (FEXT) in US and DS transmission direction, respectively. Further effects include inter-carrier interference (ICI) among Vectoring groups that are based on different DSL technologies [10], residual crosstalk among Vectoring lines [7], noncontinuous net-data-rate objectives and constraint functions [11], and the coupling among Vectoring users in terms of per-transceiver power spectral density (PSD) and aggregate transmit power (ATP) constraints [8].…”

Section: Introductionmentioning

confidence: 99%

“…Uncanceled in-domain and out-of-domain crosstalk may be the result of, among others, regulated deployments, operators' service strategies, Vectoring implementation (e.g., board-level Vectoring) [6], imperfect cancelation [7], [8] or coexistence of independent Vectoring DSL technologies during network migration, e.g., in the presence of legacy customer premises equipment (CPE). Measures to combat the considerable impact [9] of the resulting crosstalk noise include dynamic spectrum management, higher-layer unbundling, binder management, Vectoring across DSL Access Multiplexers (DSLAM), and cable-level Vectoring [6].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Maintaining harmony in the vectoring xDSL family by spectral coordination

Wolkerstorfer

Statovci

Drakulic

2015

2015 49th Asilomar Conference on Signals, Systems and Computers

View full text Add to dashboard Cite

In multi-user and multi-carrier Digital Subscriber Line (DSL) access networks various DSL technologies, with or without crosstalk cancelation (Vectoring) capabilities, may coexist. Spectral resource management promotes collaboration among users. However, resource allocation is complicated by inter-carrier interference and strong near-end crosstalk due to mixed/asynchronous DSL technologies. Furthermore, Vectoring is subject to residual crosstalk, as well as coupling per-transceiver and per-carrier power constraints. We present a joint model of these effects, and analyze the net-data-rates of the recent G.fast and 35 MHz VDSL2 technologies in a specific coexistence scenario. The results exemplify the tradeoff between upstream and downstream net-data-rates.

show abstract

Section: A Channel Modelmentioning

confidence: 98%

Section: System Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Maintaining harmony in the vectoring xDSL family by spectral coordination

Wolkerstorfer

Statovci

Drakulic

2015

2015 49th Asilomar Conference on Signals, Systems and Computers

View full text Add to dashboard Cite

show abstract

“…The vectoring technique used was zero-forcing [7] that is applied in the transmission matrix (1), generating a channel transmission without the presence of crosstalk interferences, called vectored matrix.…”

Section: Simulation Scenariomentioning

confidence: 99%

Performance analysis for transmission in phantom systems in corporate environments

Sousa¹,

Souza²,

Júnior³

et al. 2016

Anais De XXXIV Simpósio Brasileiro De Telecomunicações

View full text Add to dashboard Cite

The need for high bit rates in corporate systems environments is a crescent demand in the world. It has been researched in hybrid networks new technologies using cooperbased system. The G.fast uses short cables to reach aggregate rates up to 2 Gbps on band up to 212MHZ. In this paper we will analyze the aggregate rate and the symbols distortions in short CAT7 and CAT5e cables when phantom mode transmission is used. It will be seen the aggregate rate increases over 12 Gbps and the phantom mode does not affect the differential mode when vectoring is applied.

show abstract

Energy Efficient Transmission Based on Grouped Spatial Modulation for Upstream DSL Systems

Zhang

Bai

et al. 2019

IEEE Access

View full text Add to dashboard Cite

The digital Subscriber Line (DSL) remains an important component of heterogeneous networking, especially in historic city-centers, where using optical fibre is less realistic. Recently, the power consumption has become an important performance metric in telecommunication due to the associated environmental issues. In the recent bonding model, customer sites have been equipped with two/four copper pairs, which may be exploited for designing grouped spatial modulation (SM) aiming for reducing the power consumption and mitigating the stubborn crosstalk in DSL communications. Explicitly, we view the two pair copper pairs equipped for each user as a group and propose an energy efficient transmission scheme based on grouped SM strategy for the upstream DSL systems, which is capable of reducing the power consumption of the upstream transmitters by activating a single copper line of each user. More especially, in order to compensate for the potential bit-rate reduction imposed by reducing the number of activated lines, the proposed scheme implicitly delivers "virtual bits" via activating/deactivating the lines in addition to the classic modulation scheme. This is particularly beneficial in the DSL context, because the crosstalk imposed by activating several lines may swamp the desired signal. Furthermore, a pair of near-optimal soft turbo detection schemes are proposed for exploiting the unique properties of the DSL channel in order to eliminate the error propagation problem of SM detection routinely encountered in wireless channels. Both the attainable energy-efficiency and the achievable Bit Error Ratio (BER) are investigated. Our simulation results demonstrate that the proposed group-based SM is capable of outperforming the vectoring scheme both in terms of its energy efficiency for all the examined loop lengths and transmit powers. Moreover, the proposed group-based SM is capable of outperforming the vectoring scheme both in terms of its BER performance in lower frequencies and longer serviced DSL loop lengths.

show abstract

Energy-Efficient DSL Using Vectoring

Cited by 6 publications

References 16 publications

Maintaining harmony in the vectoring xDSL family by spectral coordination

Maintaining harmony in the vectoring xDSL family by spectral coordination

Performance analysis for transmission in phantom systems in corporate environments

Energy Efficient Transmission Based on Grouped Spatial Modulation for Upstream DSL Systems

Contact Info

Product

Resources

About