Optimizing Symmetric Energy

<body background="_themes/varhome/hadamard.gif" bgcolor="#FFFFFF" text="#000000" link="#3366CC" vlink="#666666" alink="#FF3300"><font face="trebuchet ms, arial, helvetica">  <p> <a href="http://dsp.colorado.edu"><img src="images/dsplogo.gif" alt="dsplogo.gif (3930 bytes)" border="0" align="middle" WIDTH="153" HEIGHT="50"></a> <a href="http://ece-www.colorado.edu"><img src="_borders/ecebutton.gif" alt="ECE Homepage" align="middle" border="0" WIDTH="63" HEIGHT="56"></a> <a href="http://www.colorado.edu"><img src="_borders/colorado.jpg" alt="University Homepage" align="middle" border="0" WIDTH="91" HEIGHT="54"></a></p> <div align="left"> </font><table border="0" cellpadding="5" cellspacing="0"> <tr> <td width="150" valign="top" align="center"><font face="trebuchet ms, arial, helvetica"><strong><small><small>This paper falls into the Research Interests:</small></small></strong><p> </p> <p><small><a href="res-inter.htm" target="main"><strong><small>Coherent Interference Cancellation</small></strong></a></small></p> <p><img src="images/blank.gif" width="150" height="20" alt></font></td> <td valign="top" align="left" width="750"><font face="trebuchet ms, arial, helvetica"><h2><font color="#CC6666">Optimizing Symmetric Energy and Permuting Users for Decision Feedback Multiuser detection to User-Wise Outperform Linear Multiuser Detection</font></h2> <p>M. K. Varanasi, Proc of the Conf. Inform. Sciences and Systems, pp. 492-497, Johns Hopkins University, March 1997.</p> <p>A decision feedback multiuser detector is defined by a feedforward-feedback matrix pair and has an implementational complexity that is only linear in the number of users. The performance criterion of symmetric (worst-case over users) asymptotic effective energy is defined. The optimum decision feedback detector (ODFD) that maximizes this measure over the class of decision feedback detectors is obtained. Algorithms for choosing the order in which the users must be detected are specified for the optimum as well as the decorrelating decision feedback detectors. These orders guarantee a user-wise superior performance in terms of asymptotic effective energy over the linear optimum and the decorrelating multiuser detectors, respectively. No assumption is made about interference cancellation being perfect in deriving these results. </font></td> </tr> </table><font face="trebuchet ms, arial, helvetica"> </div> <p><small><small>Last modified: 2000-03-31T23:07</small></small></p>  </font></body>