CoPoMo: a context‐aware power consumption model for LTE user equipment

Abstract

ABSTRACTIncreasing the battery lifetime of power‐hungry mobile devices has become a major research target for mobile operators. Based on extensive measurement campaigns with the most recent Long Term Evolution (LTE) devices, we introduce a new Markovian power consumption model, which takes into account the chosen system parameters (such as the number of physical resource blocks) as well as the context of a user in terms of radio channel conditions and service characteristics (non‐real‐time vs. real time). One key advancement of this generic model is its stochastic nature, which allows for determining the average power consumption of a device based on usage profiles including location information and service statistics. We have conducted comprehensive system simulations using realistic channel characteristics derived from ray‐tracing analyses and validated the new model. Finally, we show that the proposed context‐aware power consumption model enables quantitative analyses of the trade‐off between network resource allocation and enhanced battery lifetime. © 2013 The Authors. Transactions on Emerging Telecommunications Technologies published by John Wiley & Sons, Ltd.