Title :
Uplink energy efficiency in LTE systems
Author :
Pons, Xavier ; Palacios, Raul ; Gruet, Christophe ; Naviner, L. ; Marques, H. ; Granelli, Fabrizio ; Rodriguez, Jose
Author_Institution :
EADS-Cassidian, France
Abstract :
This paper proposes a new method to model the instantaneous uplink (UL) energy efficiency (EE) of a mobile terminal when it is transmitting to a base station using the Long Term Evolution (LTE) technology. It is known that the transmitted power can vary significantly, mainly depending on the used modulation code scheme (MCS), or the path loss between the user equipment (UE) and the eNodeB (eNB), or even the number of resource blocks (RBs) used to send the data. Even though this transmitted power, also known as irradiated power, does not correspond to the final power consumption during an UL transmission, its variability has an impact on it. Unlike existing models, this paper considers the power consumed in the radio frequency chain and the power consumed by the baseband processing. The proposed model is expected to improve the accuracy of the theoretic measurements of both the power consumption and the EE of UL transmissions in LTE systems.
Keywords :
Long Term Evolution; power consumption; telecommunication power management; LTE system; Long Term Evolution technology; MCS; baseband processing; mobile terminal; modulation code scheme; power consumption; radio frequency chain; resource blocks; uplink energy efficiency; user equipment; Long Term Evolution; Tin; Long Term Evolution (LTE); energy efficiency; power consumption model; uplink;
Conference_Titel :
Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2013 IEEE 18th International Workshop on
Conference_Location :
Berlin
DOI :
10.1109/CAMAD.2013.6708099