Study of the coexistence of VDSL2 and PLC by analysing the coupling between power line and telecommunications cable in the home network

Praho, Brice; Razafferson, R.; Tlich, Mohamed; Zeddam, A.; Nouvel, Fabienne

doi:10.1109/ursigass.2011.6050728

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Measurement case studies that investigate the differential mode PLC-to-DSL coupling channel in a laboratory environment were performed in [9]- [12]. These studies investigated the effects of various factors, such as the distance separating the PLC and DSL cables and the shared length between the PLC and DSL cables, on the PLC-to-DSL coupling over the VDSL2 spectrum.…”

Section: A Dm Plc-to-dsl Channel Measurementsmentioning

confidence: 99%

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DSL and PLC Co-Existence: An Interference Cancellation Approach

Ali

Messier

Lai

2014

IEEE Trans. Commun.

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It is often advocated that a solution to the problem of interference to digital subscriber line networks (DSL) from a power line communications (PLC) network is to prevent the PLC networks from utilizing the DSL spectrum. However, this solution will render PLC networks inoperable with the introduction of wide-band DSL technology like G.Fast. We propose utilizing an interference cancelling scheme to ensure the co-existence of DSL and PLC networks within the home environment. A measurement campaign is conducted where a set of 480 measurements are collected within a residential house to characterize the PLC-to-DSL interference environment for two DSL modem installation scenarios. The interference cancelling scheme is based on an adaptive frequency domain interference canceller (FDIC) that utilizes the common mode (CM) PLC interference to estimate the differential mode (DM) PLC interference. The effectiveness of the FDIC, which is insensitive to the non-stationarity of the PLC channel, is demonstrated using analysis that incorporates the measured PLC-to-DSL coupling channels.

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Section: A Dm Plc-to-dsl Channel Measurementsmentioning

confidence: 99%

“…The number of bits b(i) that can be loaded on frequency bin i, in absence of any interference cancelling scheme is calculated by (9), where the SNR gap Γ for DSL is 9.45 dB and the maximum number of bits that can be allocated to a DSL frequency bin b max is 15 bits [20].…”

Section: B Improvement In Bit Ratementioning

confidence: 99%