diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/thesis/chapters/theory.tex | 4 | ||||
| -rw-r--r-- | doc/thesis/figures/tikz/overview.tex | 114 |
2 files changed, 81 insertions, 37 deletions
diff --git a/doc/thesis/chapters/theory.tex b/doc/thesis/chapters/theory.tex index a080c5b..3de58eb 100644 --- a/doc/thesis/chapters/theory.tex +++ b/doc/thesis/chapters/theory.tex @@ -4,11 +4,11 @@ \begin{figure} \centering - \resizebox{\linewidth}{!}{ + \resizebox{.9\linewidth}{!}{ \input{figures/tikz/overview} } \caption{ - Block diagram for a general wireless communication system with annotated signal names. Frequency domain representations of signals use the uppercase symbol of their respective time domain name. + Block diagram of our wireless communication system with annotated signal names. Frequency domain representations of signals use the uppercase symbol of their respective time domain name. \label{fig:notation} } \end{figure} diff --git a/doc/thesis/figures/tikz/overview.tex b/doc/thesis/figures/tikz/overview.tex index d0afaab..68dee1f 100644 --- a/doc/thesis/figures/tikz/overview.tex +++ b/doc/thesis/figures/tikz/overview.tex @@ -3,55 +3,99 @@ \begin{tikzpicture}[ % show background rectangle, box/.style = { - font = \small\sffamily\bfseries, + font = \small\sffamily, draw, thick, fill = white, - minimum height = 10mm, - minimum width = 25mm, + minimum height = 14mm, + minimum width = 28, + text width = 28mm, align = center, + }, + circ/.style = { + draw, thick, circle, fill = white, + minimum size = 10mm, inner sep = 0pt, + font = \Huge, }, ] + + % -------------------------------------------------------- + + \coordinate (TX) at (0, 0); \matrix[ - nodes = {box}, column sep = 10mm, row sep = 10mm, - ]{ - \node (SRC) {Source}; & - \node (ENC) {Encoder}; & - \node (MOD) {Modulator}; \\ - && \node (CHN) {Channel}; \\ - \node (SNK) {Sink}; & - \node (DEC) {Decoder}; & - \node (DMD) {Demodulator}; \\ + nodes = {box}, column sep = 14mm, row sep = 10mm, + inner sep = 3mm, fill = lightgray!20, + anchor = north west, + ] at (TX) { + \node (SRC) {\textbf{Source}\\ Digital data}; & + \node (FRA) {\textbf{Framer}\\ Data Packets}; & + \node (MOD) {\textbf{Modulator}\\ QPSK or 16-QAM}; \\ }; + \draw[very thick, -latex] - (SRC) edge node[midway, above] {\(m\)} (ENC) - (ENC) edge node[midway, above] {\(m_e\)} (MOD) - (MOD) edge node[midway, right] {\(s(t)\)} (CHN) - (CHN) edge node[midway, right] {\(r(t)\)} (DMD) - (DMD) edge node[midway, above] {\(\hat{m}_e\)} (DEC) - (DEC) edge node[midway, above] {\(\hat{m}\)} (SNK) + (SRC) edge node[midway, above] {\(m\)} (FRA) + (FRA) edge (MOD) ; - \draw[very thick, -latex] - ($(MOD.east)+(5mm,0)$) node[right] (CARR) {Carrier \(e^{j(\omega_c t + \phi)}\)} to (MOD); + \node[ + gray, + anchor = south west, + font = \ttfamily, + ] at (TX) {Transmitter}; - \draw[very thick, -latex] - ($(CHN.east)+(5mm,0)$) node[right] (NOISE) {Noise \(n(t)\)} to (CHN); + % -------------------------------------------------------- - % \draw[very thick, -latex] - % ($(CHN.west)-(5mm,0)$) node[left] (FADE) {Fading} to (CHN); + \coordinate (CHN) at ($(MOD.south east)+(3mm, -11mm)$); + \matrix[ + row sep = 5mm, inner sep = 3mm, fill = lightgray!20, + anchor = north east, + ] at (CHN) { + \node[circ] (PLUS) {\(+\)}; % + \node[left = 14mm of PLUS] (AWGN) {AWGN}; & + \node[minimum width = 12mm] {}; \\ + \node[circ] (TIMES) {\(\times\)}; % + \node[left = 14mm of TIMES] (FADING) {Fading}; \\ + }; \draw[very thick, -latex] - ($(DMD.east)+(5mm,0)$) node[right] (SYNC) {Sync} to (DMD); + (AWGN) edge node[midway, above] {\(n(t)\)} (PLUS) + (FADING) edge node[midway, above] {\(f(t)\)} (TIMES) + (MOD) edge node[midway, right] {\(s(t)\)} (PLUS) + (PLUS) edge (TIMES) + ; - \begin{pgfonlayer}{background} - \fill[lightgray!20] ($(SRC.north west)+(-5mm,5mm)$) node (TX) {} - rectangle ($(MOD.south -| CARR.east)+(5mm,-5mm)$); + \node[ + gray, + anchor = south west, + font = \ttfamily, + ] at ($(CHN) - (62mm, 0)$) {Channel Model}; - \fill[lightgray!20] ($(SNK.north west)+(-5mm,5mm)$) node (RX) {} - rectangle ($(DMD.south -| CARR.east)+(5mm,-5mm)$); + % -------------------------------------------------------- - \node[gray, font = \ttfamily\bfseries, anchor = south west] - at (TX.north) {Transmitter}; + \coordinate (RX) at (0, -68mm); + \matrix[ + nodes = {box}, + column sep = 14mm, row sep = 5mm, + inner sep = 3mm, fill = lightgray!20, + anchor = north west, + ] at (RX) { + \node (PFC) {\textbf{Fine phase and freq. correction}}; & + \node (EQL) {\textbf{Equalizer} \\ Amplitude}; & + \node (CLK) {\textbf{Clock Recovery} \\ Symbol peak}; \\ + \node (DMO) {\textbf{Demodulator}}; & + \node (DFR) {\textbf{Deframer} \\ Error detection}; & + \node (SIN) {\textbf{Sink} \\ User interface}; \\ + }; + + \draw[very thick, -latex] + (TIMES) edge node[midway, right] {\(r(t)\)} (CLK) + (CLK) edge (EQL) + (EQL) edge (PFC) + (PFC) edge (DMO) + (DMO) edge (DFR) + (DFR) edge (SIN) + ; - \node[gray, font = \ttfamily\bfseries, anchor = south west] - at (RX.north) {Receiver}; - \end{pgfonlayer} + \node[ + gray, + anchor = south west, + font = \ttfamily, + ] at (RX) {Receiver}; \end{tikzpicture} |