Analysis of the influence of the power control and discontinuoustransmission on RF exposure with GSM mobile phones
Wiart, J.
Dale, C.
Bosisio, A.V.
Le Cornec, A.
CNET, Issy-les-Moulineaux;
This paper appears in: Electromagnetic Compatibility, IEEE Transactions on
Publication Date: Nov 2000
Volume: 42,
Issue: 4
On page(s): 376-385
ISSN: 0018-9375
References Cited: 22
CODEN: IEMCAE
INSPEC Accession Number: 6855735
Digital Object Identifier: 10.1109/15.902307
Current Version Published: 2002-08-06
Abstract
Biological studies and, in particular, epidemiological ones
require the estimation of the RF exposure induced by a mobile phone. Due
to the different techniques used by global system mobile (GSM) and
digital communication system (DCS) such as power control and
discontinuous transmission, the power emitted by a handset is largely
variable. As these parameters depend on the environment and the network
strategy, individual exposure level is difficult to evaluate a priori.
An analysis of the relative influence of the main parameters is
performed and a method of statistical analysis based on measurement is
proposed to estimate and characterize the exposure level in an operating
network. Using a test mobile system, the data stream between the mobile
and the base station, and, in particular the power control level, has
been recorded along routes in Paris and its vicinity. Statistical
parameters such as mean value, standard deviation, level crossing rate,
and average duration fading have been extracted from these data. These
parameters, which characterize the RF exposure induced by a GSM handset
in an operating network, have been applied to a generic handset to
evaluate the characteristics of the power absorbed by specific
biological tissues using the finite-difference time-domain (FDTD) method
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