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Holistic Approach for Future Energy Efficient Cellular Networks

Ganzheitlicher Lösungsansatz für zukünftige energieeffiziente Mobilfunknetze

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Zusammenfassung

Weltweite Breitband-Mobilkommunikation trägt immer mehr zum globalen Energieverbrauch bei. Dieser Aufsatz untersucht die wichtige Problematik des Energiesparens durch Steigerung von Energieeffizienz mobiler Breitbandsysteme. Dies führt letztendlich zur Reduzierung des CO 2-Ausstoßes. Es wird zunächst eine ganzheitliche Systemansicht vorgelegt, welche verhindern soll, dass Ansätze zur Steigerung der Energieeffizienz die Energieeffizienz oder die Dienstleistung anderer Teile des Systems schmälern. Danach wird ein neuer Scheduling-Algorithmus präsentiert, welcher die Scheduling-Energieeffiezienz in OFDMA-basierten, drahtlosen, zellularen Netzen erhöht. Sein Ziel ist, die Gesamtenergieaufnahme des Downlinks unter Einhaltung der benötigten Spektraleffizienz und Dienstqualität zu reduzieren. Analysen zeigen, wie die vorgeschlagene Lösung beträchtliche Energiegewinne im Vergleich zu traditionellen Scheduling-Algorithmen, insbesondere in ungesättigten Netzen, erzielen kann.

Summary

Worldwide mobile broadband communications networks are increasingly contributing to global energy consumption. In this paper we tackle the important issue of energy saving by enhancing the energy efficiency of mobile broadband systems thereby reducing CO 2 emissions. We first provide a holistic system view aiming at ensuring that any proposed solutions to improve energy efficiency do not degrade the energy efficiency or performance on any other part of the system. Then, we present a novel scheduling algorithm that improves the scheduling energy efficiency in OFDMA-based wireless cellular networks. Our goal is to reduce the overall downlink energy consumption while adapting the target of spectral efficiency to the actual load of the system and meeting the Quality of Service. Our analysis reveals how the proposed approach permits to achieve notable energy gain over traditional scheduling algorithm especially in not saturated scenarios.

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  1. CEA-LETI, MINATEC, Laboratoire de Communications Numèriques et Algorithmes, Grenoble, France

    E. Calvanese Strinati & L. Hérault

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  1. E. Calvanese Strinati
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  2. L. Hérault
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Calvanese Strinati, E., Hérault, L. Holistic Approach for Future Energy Efficient Cellular Networks. Elektrotech. Inftech. 127, 314–320 (2010). https://doi.org/10.1007/S00502-010-0782-6

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  • DOI: https://doi.org/10.1007/S00502-010-0782-6

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