diff --git a/figures/etsi-its-architecture.png b/figures/etsi-its-architecture.png index cb8cf91..45fd643 100644 Binary files a/figures/etsi-its-architecture.png and b/figures/etsi-its-architecture.png differ diff --git a/figures/etsi-its-architecture.svg b/figures/etsi-its-architecture.svg new file mode 100644 index 0000000..b317c5f --- /dev/null +++ b/figures/etsi-its-architecture.svg @@ -0,0 +1,795 @@ + +image/svg+xmlApplication Layer +Presentation Layer +Session Layer +Transport Layer +Network Layer +Data Link Layer +Physical Layer +ETSI ITS +OSI + \ No newline at end of file diff --git a/main.tex b/main.tex index 719774c..2b6116b 100755 --- a/main.tex +++ b/main.tex @@ -14,6 +14,19 @@ \usepackage{xcolor} \usepackage[]{graphicx} +% svg conversion support +\usepackage{ifluatex} +\ifluatex + \usepackage{pdftexcmds} + \makeatletter + \let\pdfstrcmp\pdf@strcmp + \let\pdffilemoddate\pdf@filemoddate + \makeatother +\fi +\usepackage[]{svg} + +\usepackage{hyperref} + \newcommand{\comment}[1]{{\parindent0pt\fbox{\begin{minipage}{0.45\textwidth}{\em #1}\end{minipage}}}} \newenvironment{changed}{\red}{\color{black}} \newcommand{\todo}[1]{ \color{red} \footnote{ \color{red}[#1] \color{black}} \color{black}} @@ -135,11 +148,22 @@ Networks, Intelligent transportation systems, Security, Mesh networks, Privacy \subsection{ITS Architecture} -This section gives a brief overview of the ETSI architecture for Intelligent Transport Systems. It isn't meant to be elaborate but has a focus on identifiers and other message contents allowing linkability of messages. +This section gives a brief overview of the ETSI architecture for Intelligent Transport Systems. It isn't meant to be elaborate but has a focus on identifiers and other message contents allowing linkability of messages. -The overall architecture of ITS stations according to the ETSI reference architecture +The overall architecture of ITS stations according to the ETSI reference architecture \cite{europeantelecommunicationsstandardsinstituteetsiETSI3026652010} is mostly based on the well-known OSI layer model. -\cite{europeantelecommunicationsstandardsinstituteetsiETSI3026652010} +\begin{figure} +% center graphic +\centering +\includegraphics[width=0.8\textwidth]{figures/etsi-its-architecture.png} +\caption{The ETSI ITS-station reference architecture, based on \cite{europeantelecommunicationsstandardsinstituteetsiETSI3026652010}} +\label{fig:etsi-its-arch} +\end{figure} + +OSI layers 1 and 2 are combined into the \textit{Access} layer, OSI layers 3 and 4 into the \textit{Networking \& Transport} layer and OSI layers 5, 6 and 7 are put into the \textit{Facilities} layer (see Fig. \ref{fig:etsi-its-arch} ). \\ +The two vertical \textit{Management} and \textit{Security} layers provide supporting functionality throughout the whole stack. \textit{Applications} make use of the ITS-station services and thus sit on top of it all. + +Designed for modularity, the ETSI ITS architecture allows for a big number of access protocols. Similarly, a great variety of applications can run on top of the stack. Because of that variety, these two layers are considered out-of-scope of this survey. % \nocite{european_telecommunications_standards_institute_etsi_etsi_2010}