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<!DOCTYPE document PUBLIC "-//CNX//DTD CNXML 0.5 plus MathML//EN" "http://cnx.rice.edu/cnxml/0.5/DTD/cnxml_mathml.dtd">
<document xmlns="http://cnx.rice.edu/cnxml" xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:md="http://cnx.rice.edu/mdml/0.4" xmlns:bib="http://bibtexml.sf.net/" id="m10106">
  
  <name>Performance Analysis</name>
  <metadata>
  <md:version>2.10</md:version>
  <md:created>2001/06/18</md:created>
  <md:revised>2004/01/07 10:05:54.385 US/Central</md:revised>
  <md:authorlist>
    <md:author id="aaz">
      <md:firstname>Behnaam</md:firstname>
      
      <md:surname>Aazhang</md:surname>
      <md:email>aaz@ece.rice.edu</md:email>
    </md:author>
  </md:authorlist>

  <md:maintainerlist>
    <md:maintainer id="aaz">
      <md:firstname>Behnaam</md:firstname>
      
      <md:surname>Aazhang</md:surname>
      <md:email>aaz@ece.rice.edu</md:email>
    </md:maintainer>
    <md:maintainer id="mrshawn">
      <md:firstname>Shawn</md:firstname>
      
      <md:surname>Stewart</md:surname>
      <md:email>mrshawn@alumni.rice.edu</md:email>
    </md:maintainer>
    <md:maintainer id="rha">
      <md:firstname>Roy</md:firstname>
      
      <md:surname>Ha</md:surname>
      <md:email>rha@rice.edu</md:email>
    </md:maintainer>
  </md:maintainerlist>
  
  <md:keywordlist>
    <md:keyword>bit-error</md:keyword>
    <md:keyword>correlator</md:keyword>
    <md:keyword>correlation</md:keyword>
    <md:keyword>matched filter</md:keyword>
    <md:keyword>receiver</md:keyword>
    <md:keyword>bit-error probability</md:keyword>
    <md:keyword>error</md:keyword>
    <md:keyword>analysis</md:keyword>
    <md:keyword>antipodal</md:keyword>
    <md:keyword>orthogonal</md:keyword>
    <md:keyword>signal binary symbol</md:keyword>
  </md:keywordlist>

  <md:abstract>A performance analysis of correlator-type and matched filter receivers on binary symbol transmission using both orthogonal and antipodal signal sets.  Both types of receivers perform identically with the same detection criteria.</md:abstract>
</metadata>

  <content>    
    <para id="para1">
      In this section we will evaluate the probability of error of
      both correlator type receivers and matched filter receivers.  We
      will only present the analysis for transmission of binary
      symbols.  In the process we will demonstrate that both of these
      receivers have identical bit-error probabilities.
    </para>

    <section id="s1">
      <name>Antipodal Signals</name>

      <para id="para2">
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:ci>
              <m:msub>
                <m:mi>r</m:mi>
                <m:mi>t</m:mi>
              </m:msub>
            </m:ci>
            <m:apply>
              <m:plus/>
	      <m:apply>
		<m:ci type="fn">
		  <m:msub>
		    <m:mi>s</m:mi>
		    <m:mi>m</m:mi>
		  </m:msub>
		</m:ci>
		<m:ci>t</m:ci>
	      </m:apply>
	      <m:ci>
		<m:msub>
		  <m:mi>N</m:mi>
		  <m:mi>t</m:mi>
		</m:msub>
	      </m:ci>
            </m:apply>
	  </m:apply>
	</m:math>
	for 
	<m:math>
	  <m:apply>
	    <m:leq/>
            <m:cn>0</m:cn>
            <m:ci>t</m:ci>
            <m:ci>T</m:ci>
	  </m:apply>
	</m:math>
	with
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:ci>m</m:ci>
            <m:cn>1</m:cn>
	  </m:apply>
	</m:math>
	and
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:ci>m</m:ci>
            <m:cn>2</m:cn>
	  </m:apply>
	</m:math>
	and
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:apply>
              <m:ci type="fn">
                <m:msub>
                  <m:mi>s</m:mi>
                  <m:mn>1</m:mn>
                </m:msub>
              </m:ci>
              <m:ci>t</m:ci>
            </m:apply>
            <m:apply>
              <m:minus/>
	      <m:apply>
		<m:ci type="fn">
		  <m:msub>
		    <m:mi>s</m:mi>
		    <m:mn>2</m:mn>
		  </m:msub>
		</m:ci>
		<m:ci>t</m:ci>
	      </m:apply>
            </m:apply>
	  </m:apply>
	</m:math>

      </para>

      <para id="para3">
	An analysis of the performance of correlation receivers with
	antipodal binary signals can be found <cnxn document="m10152">here</cnxn>.  A similar analysis for matched
	filter receivers can be found <cnxn document="m10153">here</cnxn>.
      </para>

    </section>

    <section id="s2">
      <name>Orthogonal Signals</name>

      <para id="para4">
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:ci>
              <m:msub>
                <m:mi>r</m:mi>
                <m:mi>t</m:mi>
              </m:msub>
            </m:ci>
            <m:apply>
              <m:plus/>
	      <m:apply>
		<m:ci type="fn">
		  <m:msub>
		    <m:mi>s</m:mi>
		    <m:mi>m</m:mi>
		  </m:msub>
		</m:ci>
		<m:ci>t</m:ci>
	      </m:apply>
	      <m:ci>
		<m:msub>
		  <m:mi>N</m:mi>
		  <m:mi>t</m:mi>
		</m:msub>
	      </m:ci>
            </m:apply>
	  </m:apply>
	</m:math>
	for
	<m:math>
	  <m:apply>
	    <m:leq/>
            <m:cn>0</m:cn>
            <m:ci>t</m:ci>
            <m:ci>T</m:ci>
	  </m:apply>
	</m:math>
	with
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:ci>m</m:ci>
            <m:cn>1</m:cn>
	  </m:apply>
	</m:math>
	and
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:ci>m</m:ci>
            <m:cn>2</m:cn>
	  </m:apply>
	</m:math>
	and
	<m:math>
	  <m:apply>
	    <m:eq/>
            <m:apply>
              <m:scalarproduct/>
	      <m:ci>
		<m:msub>
		  <m:mi>s</m:mi>
		  <m:mn>1</m:mn>
		</m:msub>
	      </m:ci>
	      <m:ci>
		<m:msub>
		  <m:mi>s</m:mi>
		  <m:mn>2</m:mn>
		</m:msub>
	      </m:ci>
            </m:apply>
            <m:cn>0</m:cn>
	  </m:apply>
	</m:math>

      </para>

      <para id="para5">
	An analysis of the performance of correlation receivers with
	orthogonal binary signals can be found <cnxn document="m10154">here</cnxn>.  A similar analysis for matched
	filter receivers can be found <cnxn document="m10155">here</cnxn>.
      </para>

    </section>

    <para id="para6">
      It can be shown in general that correlation and matched filter
      receivers perform with the same symbol error probability if the
      detection criteria is the same for both receivers.
    </para>
  </content>
</document>
