NDLI: Utilizing eNodeB sleep mode to improve the energy-efficiency of dense LTE networks

Content Provider	IEEE Xplore Digital Library
Author	Hiltunen, K.
Copyright Year	2013
Description	Author affiliation: Ericsson Res., NomadicLab, Oy L.M. Ericsson AB, Jorvas, Finland (Hiltunen, K.)
Abstract	This study evaluates the performance of a scheme, where idle capacity cells are put into sleep mode to save energy. The evaluation is performed for a few different LTE network densification alternatives, and the network performance is compared from the daily energy consumption point of view. The obtained results indicate that the introduction of the sleep mode scheme results in 42-62% lower daily energy consumption, depending on the network densification alternative. Furthermore, the evaluated heterogeneous network deployments are found to be more energy-efficient than the densified macro deployment, which is a clear difference compared to scenarios without any energy saving schemes. If the sleep mode deployment is compared to a scheme, where underutilized capacity cells are completely switched off, the gain becomes equal to 26-43%. The results demonstrate also that the network energy consumption can be further reduced with the help of fast cell DTX. For example, if a fast cell DTX scheme reducing the idle state power consumption by 50% is assumed, the daily energy consumption becomes 31-37% lower than without fast cell DTX. Finally, the combination of fast cell DTX and sleep mode deployment results in 63-75% lower daily energy consumption compared to scenarios without any special energy saving schemes.
Starting Page	3249
Ending Page	3253
File Size	244936
Page Count	5
File Format	PDF
ISBN	9781467362351
ISSN	21669570
DOI	10.1109/PIMRC.2013.6666707
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power demand Energy consumption Switches Energy efficiency Conferences Mobile communication Downlink energy saving LTE network densification heterogeneous networks sleep mode power consumption
Content Type	Text
Resource Type	Article

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