Energy Efficiency in Network Level: Definition, Measurement and Prediction
(English)Manuscript (preprint) (Other academic)
In this paper, network level energy efficiency assessment issues are described in wireless access networks. High level definitions of energy efficiency are introduced and existing heterogeneous metrics proposed in the literature in order to quantify the energy savings are overviewed. The weaknesses of the current metrics in order to evaluate NLEE have been discussed in detail and more elaborate metric forms have been suggested. Then, a NLEE evaluation methodology is proposed to calculate the suggested indicator, and unlike GSMA method it is based on network segmentation, direct measuring in both network and terminal side, and prediction. We believe that network modularization and frequent observation are the only ways in order to understand the reasoning behind the obtained NLEE metric and propose solutions for the improvement. However, it comes with the increased complexity and challenges to be resolved. We present a summary of the most important difficulties, our suggestions and open questions in order to answer “How to accurately assess the NLEE in wireless access network”.
Energy Efficiency Metrics, Wireless Access Networks, Measurement Methodology, Utility function
IdentifiersURN: urn:nbn:se:kth:diva-104659OAI: oai:DiVA.org:kth-104659DiVA: diva2:565761
ProjectsEnergy-efficient wireless networking (eWIN)
FunderICT - The Next GenerationWireless@kth
QS 20122012-11-082012-11-082016-04-22Bibliographically approved