TY - JOUR
T1 - Fair greening of broadband access
T2 - spectrum management for energy-efficient DSL networks
AU - Tsiaflakis, Paschalis
AU - Yi, Yung
AU - Chiang, Mung
AU - Moonen, Marc
N1 - Funding Information:
Paschalis Tsiaflakis is a postdoctoral fellow funded by the Fonds Wetenschappelijk Onderzoek (FWO) - Vlaanderen. This research work was carried out at the ESAT Laboratory of Katholieke Universiteit Leuven, in the frame of K.U. Leuven Research Council CoE EF/05/006 Optimization in Engineering (OPTEC), Concerted Research Action GOA-MaNet, the Belgian Programme on Interuniversity Attraction Poles initiated by the Belgian Federal Science Policy Office IUAP P6/04 (DYSCO, Dynamical systems, control and optimization, 2007-2011), Research Project FWO nr.G.0235.07 (Design and evaluation of DSL systems with common mode signal exploitation), and is supported in part by Princeton Grand Challenge Grant, NSF NetSE grant on Socio-Technical Networking and a Google grant, and also by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2011-0015042). A part of this paper has appeared in the Proceedings of the IEEE International Conference on Communications (ICC), Dresden, Germany, June 2009 [] and in the Proceedings of the ACM GreenMetrics Workshop, Seattle, WA, June 2009 [].
Publisher Copyright:
© 2011, Tsiaflakis et al; licensee Springer.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Dynamic spectrum management (DSM) is recognized as a promising technology to reduce power consumption in DSL access networks. However, the correct formulation of power-aware DSM problem statements requires a proper understanding of greening, i.e., reducing power consumption. In this paper, we, therefore, investigate greening and show that it can be decomposed into two dimensions: the price of greening and the fairness of greening. We first analyze the price of greening, providing theoretical bounds on the power-rate trade-off and identifying the typical trends that can be expected in practice, with some particularly promising results. Then, we introduce the fairness dimension, where we show that fairness becomes crucial when reducing power consumption. We propose four different fair greening policies that can be used to obtain a favorable trade-off between fast, fair and green DSL operation. Finally, we evaluate and quantify the corresponding trade-offs for realistic DSL access networks.
AB - Dynamic spectrum management (DSM) is recognized as a promising technology to reduce power consumption in DSL access networks. However, the correct formulation of power-aware DSM problem statements requires a proper understanding of greening, i.e., reducing power consumption. In this paper, we, therefore, investigate greening and show that it can be decomposed into two dimensions: the price of greening and the fairness of greening. We first analyze the price of greening, providing theoretical bounds on the power-rate trade-off and identifying the typical trends that can be expected in practice, with some particularly promising results. Then, we introduce the fairness dimension, where we show that fairness becomes crucial when reducing power consumption. We propose four different fair greening policies that can be used to obtain a favorable trade-off between fast, fair and green DSL operation. Finally, we evaluate and quantify the corresponding trade-offs for realistic DSL access networks.
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U2 - 10.1186/1687-1499-2011-140
DO - 10.1186/1687-1499-2011-140
M3 - Article
AN - SCOPUS:84964237459
SN - 1687-1472
VL - 2011
JO - Eurasip Journal on Wireless Communications and Networking
JF - Eurasip Journal on Wireless Communications and Networking
IS - 1
M1 - 140
ER -