Title :
LTE modem power consumption, SAR and RF signal strength emulation
Author :
Musiige, D. ; Vincent, Lionel ; Anton, Francois
Author_Institution :
Renesas Mobile Eur., Copenhagen, Denmark
Abstract :
This paper presents a new methodology for emulating the LTE modem power consumption, emitted SAR and RF signal strength when transmitting an LTE signal. The inputs of the methodology are: modem logical/protocol commands, time advance, near-field specifier, and antenna characteristics. The power emulation model(s) are computed by a two layer 4×5×1 neural network based on physical power measurements. SAR is emulated by polynomial interpolation models based on FDTD simulations. The accuracies of the mathematical function approximations for the emulation models of power and SAR are 5.19% and 3.6% respectively. The RF signal strength is emulated by an analytical model.
Keywords :
Long Term Evolution; finite difference time-domain analysis; interpolation; mobile antennas; modems; neural nets; polynomial approximation; protocols; telecommunication computing; FDTD simulations; LTE modem power consumption; LTE signal; RF signal strength emulation; SAR; antenna characteristics; mathematical function approximations; modem logical-protocol commands; near-field specifier; physical power measurements; polynomial interpolation models; power emulation model; specific absorption rate; two layer 4×5×1 neural network; Computational modeling; Emulation; Frequency measurement; Mathematical model; Modems; Power demand; Radio frequency; RF; SAR; base-station; baseband; logical interface; modem;
Conference_Titel :
Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2012 4th International Congress on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4673-2016-0
DOI :
10.1109/ICUMT.2012.6459664
