From 59f47d8ca364cfe01fca0e70edaa9efd9a8321e0 Mon Sep 17 00:00:00 2001 From: Refik Hadzialic Date: Wed, 12 Sep 2012 16:50:46 +0200 Subject: Changes and abstract in english needs german --- vorlagen/thesis/maindoc.pdf | Bin 8062589 -> 8064792 bytes vorlagen/thesis/src/erklaerung.tex | 15 +- vorlagen/thesis/src/img/googlemapsResults.pdf | Bin 2520814 -> 2521581 bytes vorlagen/thesis/src/img/googlemapsResults.svg | 201 +++++++++++++++++++------- vorlagen/thesis/src/kapitel_x.tex | 31 ++-- 5 files changed, 179 insertions(+), 68 deletions(-) diff --git a/vorlagen/thesis/maindoc.pdf b/vorlagen/thesis/maindoc.pdf index 4b688c9..7e0ecee 100644 Binary files a/vorlagen/thesis/maindoc.pdf and b/vorlagen/thesis/maindoc.pdf differ diff --git a/vorlagen/thesis/src/erklaerung.tex b/vorlagen/thesis/src/erklaerung.tex index 2ad84cb..145cb1c 100644 --- a/vorlagen/thesis/src/erklaerung.tex +++ b/vorlagen/thesis/src/erklaerung.tex @@ -42,4 +42,17 @@ are always intellectually seductive and this kept me motivated and working durin periods. \newpage -\section*{Abstract} \ No newline at end of file +\section*{Abstract} +This thesis examines the possibility to localize mobile users inside of GSM networks. +While the number of mobile users grow it is possible to provide them with assistance +information with regard to their location and increase profits. The GPS receivers inside +of smart phones are exploited to provide the position. This work investigates +how complicated it is to implement the localization protocol RRLP inside of the existing +GSM networks and to provide assistance data for the GPS receivers to deliver faster +and more accurate positions. To obtain the estimated positions two GSM hardware platforms +have been deployed, dedicated and undedicated GSM hardware. Software for processing +assistance data has been developed. The generated data by the developed software were +sent to the employed smart phones. More than half of the tested smart phones delivered +their position. The obtained results provide a study how the localization system +could be deployed for assisting GSM users in avoidance of traffic jams as well as +the risks of such systems if it is abused. \ No newline at end of file diff --git a/vorlagen/thesis/src/img/googlemapsResults.pdf b/vorlagen/thesis/src/img/googlemapsResults.pdf index fb166a5..55547a7 100644 Binary files a/vorlagen/thesis/src/img/googlemapsResults.pdf and b/vorlagen/thesis/src/img/googlemapsResults.pdf differ diff --git a/vorlagen/thesis/src/img/googlemapsResults.svg b/vorlagen/thesis/src/img/googlemapsResults.svg index 9b43ded..580ca1c 100644 --- a/vorlagen/thesis/src/img/googlemapsResults.svg +++ b/vorlagen/thesis/src/img/googlemapsResults.svg @@ -19,7 +19,7 @@ sodipodi:docname="googlemapsResults.svg">image/svg+xml + + Test room 2 -Test room 1 -Test room 3 -Test outside + + 2 + + 20 m + + 1 + + 2 -Test room 3 + + + +O + \ No newline at end of file diff --git a/vorlagen/thesis/src/kapitel_x.tex b/vorlagen/thesis/src/kapitel_x.tex index 92efe86..8d1d759 100644 --- a/vorlagen/thesis/src/kapitel_x.tex +++ b/vorlagen/thesis/src/kapitel_x.tex @@ -2734,18 +2734,25 @@ to take another route. %protecting privacy of cell phone users. This thesis investigated how difficult it is to integrate mobile assisted GPS localization in GSM -networks. The aim of this work was to implement the ``first'' working open source RRLP +networks on undedicated and dedicated GSM hardware. The aim of this work was to implement the +``first'' working open source RRLP implementation in GSM networks, as well as to determine and evaluate the limits of this localization -technique. The research performed in this work has shown that it is neither impossibly convoluted nor burdensome to -estimate the position of GSM users even inside of buildings granted that required assistance -data can be provided by the GSM network operator. The findings of this study indicate that GSM users -of smart phones can be tracked accurately and precisely without their knowledge. One implication of this -evidence is to suggest that it would not be complicated for German law enforcement agencies to employ this precise -surveillance technique to follow suspects. According to the German Interior Minister Hans-Peter Friedrich, -in 2011 silent SMS were employed with the UL-TDOA technique to track down suspects \citep{silentPolice}. -The law is unclear if silent SMS can be considered communication when taking into -consideration that no information is sent to the GSM user, and it remains a gray area from the legal point of view -\citep{silentPolice}. "The state found that it was not communication, since there is no content. This is useful, +technique. Both goals were accomplished, a working RRLP protocol inside of data channels was +successfully implemented. The evaluated results proved that out of 11 tested cell phone models, 6 successfully +provided their GPS location. An analysis, with regards to accuracy and precision of the delivered positions, was +discussed. + +The research performed in this work has shown that it is neither impossibly +convoluted nor burdensome to estimate the position of GSM users even inside of buildings granted that +required assistance data can be provided by the GSM network operator. The findings of this study indicate +that GSM users of smart phones can be tracked accurately and precisely without their knowledge. One +implication of this evidence is to suggest that it would not be complicated for German law enforcement +agencies to employ this precise surveillance technique to follow suspects. According to the German +Interior Minister Hans-Peter Friedrich, in 2011 silent SMS were employed with the UL-TDOA technique to +track down suspects \citep{silentPolice}. The law is unclear if silent SMS can be considered communication +when taking into consideration that no information is sent to the GSM user, and it remains a gray area +from the legal point of view \citep{silentPolice}. "The state found that it was not communication, +since there is no content. This is useful, because if it is not a communication, it does not fall under the framework of the inviolability of telecommunications described in Article 10 of the German Constitution." said Mathias Monroy from Heise Online \citep{silentPolice}. The development of a working RRLP application and the obtained @@ -2755,7 +2762,7 @@ Finally, a number of important limitations in the obtained results need to be co Not all assistance data were available, the tests were performed at different time points during the day, and the number of types of tested cell phones was not globally representative enough. This work has raised some questions in need of further investigation but it also illustrates -that this is only a tip of the iceberg! A future study investigating the results of further +that this is only a small revealed section of a larger hidden issue! A future study investigating the results of further assistance data being provided to the cell phones would be very interesting. The produced RRLP software and obtained results may be used to develop new strategies aimed at protecting the privacy of cell phone users. -- cgit v1.2.3-55-g7522