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<h1>OFDM Blocks</h1> </div>
<div class="ingroups"><a class="el" href="group__block.html">GNU Radio C++ Signal Processing Blocks</a></div></div>
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Collaboration diagram for OFDM Blocks:</div>
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<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__cyclic__prefixer.html">gr_ofdm_cyclic_prefixer</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">adds a cyclic prefix vector to an input size long ofdm symbol(vector) and converts vector to a stream output_size long. <a href="classgr__ofdm__cyclic__prefixer.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__demapper__vcb.html">gr_ofdm_demapper_vcb</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">take a stream of vectors in from an FFT and demodulate to a stream of bits. Abstract class must be subclassed with specific mapping. <a href="classgr__ofdm__demapper__vcb.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__frame__acquisition.html">gr_ofdm_frame_acquisition</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">take a vector of complex constellation points in from an FFT and performs a correlation and equalization.This block takes the output of an FFT of a received OFDM symbol and finds the start of a frame based on two known symbols. It also looks at the surrounding bins in the FFT output for the correlation in case there is a large frequency shift in the data. This block assumes that the fine frequency shift has already been corrected and that the samples fall in the middle of one FFT bin. <a href="classgr__ofdm__frame__acquisition.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__frame__sink.html">gr_ofdm_frame_sink</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Takes an OFDM symbol in, demaps it into bits of 0's and 1's, packs them into packets, and sends to to a message queue sink.NOTE: The mod input parameter simply chooses a pre-defined demapper/slicer. Eventually, we want to be able to pass in a reference to an object to do the demapping and slicing for a given modulation type. <a href="classgr__ofdm__frame__sink.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__insert__preamble.html">gr_ofdm_insert_preamble</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">insert "pre-modulated" preamble symbols before each payload. <a href="classgr__ofdm__insert__preamble.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__mapper__bcv.html">gr_ofdm_mapper_bcv</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">take a stream of bytes in and map to a vector of complex constellation points suitable for IFFT input to be used in an ofdm modulator. Abstract class must be subclassed with specific mapping. <a href="classgr__ofdm__mapper__bcv.html#_details">More...</a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__ofdm__sampler.html">gr_ofdm_sampler</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">does the rest of the OFDM stuff <a href="classgr__ofdm__sampler.html#_details">More...</a><br/></td></tr>
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