Measurement and Modeling Techniques for the Fourth Generation Broadband Over Copper

Acatauassu, Diogo; Almeida, Igor; Müller, Francisco; Klautau, Aldebaro; Lu, Chenguang; Ericson, Klas; Dortschy, Boris

doi:10.5772/36033

Cited by 4 publications

(6 citation statements)

References 10 publications

(18 reference statements)

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“…The measured channels consist of 2048 subchannels spanning from 2 MHz to 104.4 MHz, where each subchannel occupies 0.05 MHz. Again, the PSD of the additive white Gaussian noise (AWGN) is set to −140 dBm/Hz by considering all potential noise contributions [3]. The range of power investigated is 3dBm ≤ P t ≤ 30dBm allocated for each user over the 2048 subcarriers.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Again, the LD's power consumption is obtained via Eq. Energy efficiency (Mbps/J) 3 I Q = 11.1 mA and R line = 64 Ω, respectively. Furthermore, the power consumed by the hybrid circuit is P Hybrid = 50 mW, as summarized in Table I.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Furthermore, by observing the energy efficiency in Fig. 8, we can see that the proposed group-based SM remains better than the vectoring scheme in term of energy efficient at the Energy efficiency (Mbps/J) 3…”

Section: B Energy Efficiency Analysis Based On Dcmcmentioning

confidence: 91%

“…Firstly, we compare the total capacity of the proposed groupbased SM and of the vectoring scheme. Furthermore, the impact of the loop length, of the number of simultaneous serviced Energy efficiency (Mbps/J) 3 Energy efficiency (Mbps/J) 3 and the number of the modulation order are investigated in Fig. 7 and Fig.…”

Section: B Energy Efficiency Analysis Based On Dcmcmentioning

confidence: 99%

“…Digital Subscriber Lines (DSLs) remain the most widespread fixed broadband data transmission medium around the world with more than 300 million users [1], [2] due to its benefits for both the operators and for the subscribers [3], [4]. Where high-cost fibre installations are unaffordable, the widespread fixed copper cable infrastructure is capable of providing a reliable solution for numerous broadband access applications.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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

Zhang

Bai

et al. 2019

IEEE Access

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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.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Simulation Resultsmentioning

confidence: 99%

Section: B Energy Efficiency Analysis Based On Dcmcmentioning

confidence: 91%

Section: B Energy Efficiency Analysis Based On Dcmcmentioning

confidence: 99%