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65<h1>channel_code.h</h1><a href="channel__code_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
66<a name="l00029"></a>00029 <span class="preprocessor">#ifndef CHANNEL_CODE_H</span>
67<a name="l00030"></a>00030 <span class="preprocessor"></span><span class="preprocessor">#define CHANNEL_CODE_H</span>
68<a name="l00031"></a>00031 <span class="preprocessor"></span>
69<a name="l00032"></a>00032 <span class="preprocessor">#include &lt;<a class="code" href="vec_8h.html" title="Templated Vector Class Definitions.">itpp/base/vec.h</a>&gt;</span>
70<a name="l00033"></a>00033 <span class="preprocessor">#include &lt;<a class="code" href="modulator_8h.html" title="One- and two-dimensional modulators - header file.">itpp/comm/modulator.h</a>&gt;</span>
71<a name="l00034"></a>00034
72<a name="l00035"></a>00035
73<a name="l00036"></a>00036 <span class="keyword">namespace </span>itpp
74<a name="l00037"></a>00037 {
75<a name="l00038"></a>00038
76<a name="l00043"></a>00043 <span class="comment">//---------------------- BCH --------------------------------------</span>
77<a name="l00044"></a>00044
78<a name="l00050"></a><a class="code" href="classitpp_1_1Channel__Code.html">00050</a> <span class="keyword">class </span><a class="code" href="classitpp_1_1Channel__Code.html" title="Generic Channel Code class.">Channel_Code</a>
79<a name="l00051"></a>00051 {
80<a name="l00052"></a>00052 <span class="keyword">public</span>:
81<a name="l00054"></a><a class="code" href="classitpp_1_1Channel__Code.html#4914d1ec0aa65080ab46b42b5d3137c0">00054</a>   <a class="code" href="classitpp_1_1Channel__Code.html#4914d1ec0aa65080ab46b42b5d3137c0" title="Default constructor.">Channel_Code</a>() {}
82<a name="l00056"></a><a class="code" href="classitpp_1_1Channel__Code.html#bf5f8995f9671983567feb9a90553b65">00056</a>   <span class="keyword">virtual</span> <a class="code" href="classitpp_1_1Channel__Code.html#bf5f8995f9671983567feb9a90553b65" title="Destructor.">~Channel_Code</a>() {}
83<a name="l00057"></a>00057
84<a name="l00059"></a>00059   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Channel__Code.html#8e151b53b207d644598360537dacaf91" title="Encode a bvec of input.">encode</a>(<span class="keyword">const</span> bvec &amp;uncoded_bits, bvec &amp;coded_bits) = 0;
85<a name="l00061"></a>00061   <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Channel__Code.html#8e151b53b207d644598360537dacaf91" title="Encode a bvec of input.">encode</a>(<span class="keyword">const</span> bvec &amp;uncoded_bits) = 0;
86<a name="l00062"></a>00062
87<a name="l00064"></a>00064   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Channel__Code.html#e6c5afdb8f2760f27d64663f94587b9a" title="Decode a bvec of coded data.">decode</a>(<span class="keyword">const</span> bvec &amp;codedbits, bvec &amp;decoded_bits) = 0;
88<a name="l00066"></a>00066   <span class="comment">//virtual bvec decode(const bvec &amp;coded_bits);</span>
89<a name="l00067"></a>00067   <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Channel__Code.html#e6c5afdb8f2760f27d64663f94587b9a" title="Decode a bvec of coded data.">decode</a>(<span class="keyword">const</span> bvec &amp;coded_bits) = 0;
90<a name="l00068"></a>00068
91<a name="l00070"></a>00070   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Channel__Code.html#e6c5afdb8f2760f27d64663f94587b9a" title="Decode a bvec of coded data.">decode</a>(<span class="keyword">const</span> vec &amp;received_signal, bvec &amp;decoded_bits) = 0;
92<a name="l00072"></a>00072   <span class="comment">//virtual bvec decode(const vec &amp;received_signal);</span>
93<a name="l00073"></a>00073   <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Channel__Code.html#e6c5afdb8f2760f27d64663f94587b9a" title="Decode a bvec of coded data.">decode</a>(<span class="keyword">const</span> vec &amp;received_signal) = 0;
94<a name="l00074"></a>00074
95<a name="l00076"></a>00076   <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Channel__Code.html#5dbe6bc0940f0423c0507d5ca54bab93" title="Get the code rate.">get_rate</a>() <span class="keyword">const</span> = 0;
96<a name="l00077"></a>00077 };
97<a name="l00078"></a>00078
98<a name="l00079"></a>00079
99<a name="l00086"></a><a class="code" href="classitpp_1_1Dummy__Code.html">00086</a> <span class="keyword">class </span><a class="code" href="classitpp_1_1Dummy__Code.html" title="Dummy Channel Code class.">Dummy_Code</a> : <span class="keyword">public</span> <a class="code" href="classitpp_1_1Channel__Code.html" title="Generic Channel Code class.">Channel_Code</a>
100<a name="l00087"></a>00087 {
101<a name="l00088"></a>00088 <span class="keyword">public</span>:
102<a name="l00090"></a><a class="code" href="classitpp_1_1Dummy__Code.html#301d12b727a28410e51e8c0e86ef7bba">00090</a>   <a class="code" href="classitpp_1_1Dummy__Code.html#301d12b727a28410e51e8c0e86ef7bba" title="Default constructor.">Dummy_Code</a>() {}
103<a name="l00092"></a><a class="code" href="classitpp_1_1Dummy__Code.html#f6a8d896dfef34b6ba5629ad8fb142c3">00092</a>   <span class="keyword">virtual</span> <a class="code" href="classitpp_1_1Dummy__Code.html#f6a8d896dfef34b6ba5629ad8fb142c3" title="Destructor.">~Dummy_Code</a>() {}
104<a name="l00093"></a>00093
105<a name="l00095"></a><a class="code" href="classitpp_1_1Dummy__Code.html#e4a4f181a584013a415ba0c61ef3a248">00095</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Dummy__Code.html#e4a4f181a584013a415ba0c61ef3a248" title="Encode a bvec of input.">encode</a>(<span class="keyword">const</span> bvec &amp;uncoded_bits, bvec &amp;coded_bits) { coded_bits = uncoded_bits; }
106<a name="l00097"></a><a class="code" href="classitpp_1_1Dummy__Code.html#bf5d03d35174e395f89fb58c82b11079">00097</a>   <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Dummy__Code.html#bf5d03d35174e395f89fb58c82b11079" title="Encode a bvec of input.">encode</a>(<span class="keyword">const</span> bvec &amp;uncoded_bits) { <span class="keywordflow">return</span> uncoded_bits; }
107<a name="l00098"></a>00098
108<a name="l00100"></a><a class="code" href="classitpp_1_1Dummy__Code.html#d8d95f95987abdafe06716f27d7002e7">00100</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Dummy__Code.html#d8d95f95987abdafe06716f27d7002e7" title="Decode a bvec of coded data.">decode</a>(<span class="keyword">const</span> bvec &amp;coded_bits, bvec &amp;decoded_bits) { decoded_bits = coded_bits; }
109<a name="l00102"></a><a class="code" href="classitpp_1_1Dummy__Code.html#aa62756d7870fc741eee0c7576551215">00102</a>   <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Dummy__Code.html#aa62756d7870fc741eee0c7576551215" title="Decode a bvec of coded data.">decode</a>(<span class="keyword">const</span> bvec &amp;coded_bits) { <span class="keywordflow">return</span> coded_bits; }
110<a name="l00103"></a>00103
111<a name="l00105"></a><a class="code" href="classitpp_1_1Dummy__Code.html#2ea8ca9874f8f5ec23501af013015ae9">00105</a>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classitpp_1_1Dummy__Code.html#2ea8ca9874f8f5ec23501af013015ae9" title="Decode a vec of received data. Assumes soft input (BPSK modulated).">decode</a>(<span class="keyword">const</span> vec &amp;received_signal, bvec &amp;decoded_bits) { <a class="code" href="classitpp_1_1BPSK.html" title="BPSK modulator with real symbols.">BPSK</a> bpsk; bpsk.<a class="code" href="classitpp_1_1BPSK.html#86ec97762f354d8020fcab199faa6e5e" title="Demodulate noisy BPSK symbols in complex domain into bits.">demodulate_bits</a>(received_signal, decoded_bits); }
112<a name="l00107"></a><a class="code" href="classitpp_1_1Dummy__Code.html#df6d3ddeba2ec69d741dd25ee40bb645">00107</a>   <span class="keyword">virtual</span> bvec <a class="code" href="classitpp_1_1Dummy__Code.html#df6d3ddeba2ec69d741dd25ee40bb645" title="Decode a vec of received data. Assumes soft input (BPSK modulated).">decode</a>(<span class="keyword">const</span> vec &amp;received_signal) { bvec out; <a class="code" href="classitpp_1_1Dummy__Code.html#df6d3ddeba2ec69d741dd25ee40bb645" title="Decode a vec of received data. Assumes soft input (BPSK modulated).">decode</a>(received_signal, out); <span class="keywordflow">return</span> out; }
113<a name="l00108"></a>00108
114<a name="l00110"></a><a class="code" href="classitpp_1_1Dummy__Code.html#e72da9e0a98cfd2117e1ea301d1319a1">00110</a>   <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classitpp_1_1Dummy__Code.html#e72da9e0a98cfd2117e1ea301d1319a1" title="Get the code rate.">get_rate</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> 1.0; }
115<a name="l00111"></a>00111 };
116<a name="l00112"></a>00112
117<a name="l00113"></a>00113
118<a name="l00114"></a>00114
119<a name="l00115"></a>00115 } <span class="comment">// namespace itpp</span>
120<a name="l00116"></a>00116
121<a name="l00117"></a>00117 <span class="preprocessor">#endif // #ifndef CHANNEL_CODE_H</span>
122</pre></div></div>
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