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- Lindqvist, Fredrik, et al.
(författare)
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Low-order and causal twisted-pair cable modeling by means of the Hilbert transform
- 2008
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Ingår i: AIP Conference Proceedings. - : AIP. ; , s. 301-310
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Konferensbidrag (refereegranskat)abstract
- A new low-order and causal twisted-pair cable model for the copper access network is derived. From the serial resistance of the widely used, but non-causal, BT0 model, the serial inductance is computed via the Hilbert transform. By doing so, a causal cable model is obtained containing fewer parameters compared to the BT0 model. The deviation between the two models is evaluated for the standardized ETSI cables.
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2. |
- Ödling, Per, et al.
(författare)
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The fourth generation broadband concept
- 2009
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Ingår i: IEEE Communications Magazine. - 0163-6804. ; 47:1, s. 63-69
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Tidskriftsartikel (refereegranskat)abstract
- Fixed-broadband access technology is evolving from exclusively copper-based solutions to hybrid fiber-copper architectures. This article presents the expected next step in the evolution of broadband systems, which we call the fourth-generation broadband concept. It identifies a technical, infrastructural, and economical niche and describes how the fiber-access network is extended and forked to feed a last and ultimate generation of DSL systems, shown to have gigabit potential. The underlying infrastructural concept is presented, economic aspects are described and discussed, and achievable data rates are calculated.
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