Performance Analysis of Spatial Diversity for MIMO-OFDM Systems with Power Allocation on Subcarriers
Date Issued
2009
Date
2009
Author(s)
Chen, Chien-Lun
Abstract
This thesis is mainly discussing about the issue of spatial diversity for MIMO-OFDM systems with power allocation on subcarriers. The spatial diversity techniques in traditional MIMO systems transmit the QAM symbols in different time slots, and therefore the symbols which get the higher gain can not share its power to which get the lower gain. In this thesis, different spatial diversity techniques for MIMO-OFDM systems with power allocation on subcarriers were purposed to reduce the bit error rate. Computational complexities, robustness and dependence upon feedback information of different techniques mentioned above were analyzed. Finally, we compare the results and conclude the most suitable method in upload and download situations.
Subjects
MIMO-OFDM
Spatial Diversity
MRC
MRT
Computational Complexity
Fading Channel
MMSE Equalizer
Type
thesis
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ntu-98-R96942100-1.pdf
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