English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In xDSL systems, crosstalk can be separated into two categories, namelyin-domain crosstalk and out-of-domain crosstalk. In-domain crosstalk is alsorefered to as self crosstalk. Out-of-domain crosstalk is crosstalk originatingfrom outside the multi-pair system and is also denoted as external noise (aliencrosstalk, radio frequency interference,...). While self crosstalk in itselfcan easily be canceled by a linear detector like the ZF detector, the presenceof external noise requires a more advanced processing. Coordination betweentransmitters and receivers enables the self crosstalk and the external noise tobe mitigated using MIMO signal processing, usually by means of a whiteningfilter and SVD. In this paper, we investigate the problem of finding theoptimal power allocation in MIMO xDSL systems in the presence of self crosstalkand external noise. Optimal Tx/Rx structures and power allocation algorithmswill be devised under practical limitations from xDSL systems, namely per-modemtotal power constraints and/or spectral mask constraints, leading to ageneralized SVD-based transmission. Simulation results are given for bondedVDSL2 systems with external noise coming from ADSL2+ or VDSL2 disturbing lines,along with a comparison between algorithms with one-sided signal coordinationeither only at the transmit side or the receive side.

Full vectoring optimal power allocation in xDSL channels under per-modem power constraints and spectral mask constraints