?? project introduction and task division_prateek bansal_adaptive loading for mimoofdm.htm
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<b><font size=+3>Adaptive loading for MIMO/OFDM Systems<br><br></font></b>
<font size=+1>Prateek Bansal<br>
Andrew Brzezinski<br>
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<b>Simulator Task Division:</b><br><br>
<i>Andrew Brzezinski (<a href="brzezin@stanford.edu">brzezin@stanford.edu</a>)<br></i>
<blockquote>
<li>Channel Simulator (Block Fading Assumption), including Transmit Precoding and
Receiver Shaping
<li>Performance Analysis of Adaptive Modulation applied to MIMO/OFDM Systems
<li>Performance Analysis of Fixed OFDM Transmission for single antenna system
</blockquote>
<i>Prateek Bansal (<a href="prateek@stanford.edu">prateek@stanford.edu</a>)<br></i>
<blockquote>
<li> Modulator/Demodulator(IFFT/FFT) Block and Cyclic Prefix Block for OFDM Transmitter
and Receiver
<li> Performance Analysis of MIMO/OFDM System having selection diversity at the transmitter
and maximal ratio combining at the receiver
<li> Performace Analysis of Adaptive Modulation applied to single antenna system</blockquote><br>
<b>Project Update:</b><br><br>
<p style='text-align:justify'>We have completed the literature survey and we have a basic outline of the simulator
structure.<br><br>
(Dec 1) We have completed the single antenna
OFDM system with adaptive modulation. The following blocks are
part of the design:
<blockquote>
<li> Adaptive Bit Allocation
<li> QAM Modulation (1, 2, 4, 16, 64, 256 QAM finite modulation order)
<li> Circular Prefix and FFT
<li> Channel Simulator
<li> Remove Prefix and IFFT
<li> Zero-forcing ML Decoding</blockquote><br>
(Dec 9) We have completed the MIMO OFDM system with adaptive modulation. This
includes
<blockquote>
<li> precoder
<li> shaper
<li> matrix channel formulation
<li> a fully functional variable rate variable power modulator.</blockquote>
Further, we have implemented selection diversity at the transmitter, and fixed OFDM for comparison
purposes.</p><br>
<b>Weekly Goals:</b><br><br>
Dec 2nd 2001: Have Implemented the Single Antenna System<br>
Dec 9th 2001: Have Implemented the MIMO System<br>
Dec 13th 2001: Completed Project Report<br>
<br><br>
<b>Proposed Extensions:</b><br><br>
<li>Analysis of Multiuser OFDM systems with single antennas.
<li>Analysis of Multiuser MIMO/OFDM Systems.
<br><br><br>
<b>References:</b><br><br>
<li>Jorge Campello de Souza, "Discrete Bit Loading for Multicarrier Modulation Systems", <i>PhD Thesis</i>. May, 1999<br>
<li>Kai-Kit Wong et al, "Adaptive Spatial-Subcarrier Trellis Coded MQAM and Power Optimization for OFDM Transmission", <i>VTC2000</i>, Page 2049-2053<br>
<li>Cheong Yui Wong et al, "Multiuser OFDM with Adaptive Subcarrier, Bit, and Power Allocation",
<i>IEEE Journal on Selected Areas in Communications</i>, Vol. 17, No. 10, October 1999, Page 1747-1758.<br>
<li>Joonsuk Kim, John M. Cioffi, "Spatial Multiuser Access OFDM with Antenna Diversity and Power Control", <i>VTC2000</i>, Page 273-279<br>
<li>EE359 Course Reader
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