Study On Channel Estimation For MIMO-OFDM Systems In Wireless Fading Channels

This thesis focuses on the channel estimation for MIMO-OFDM systems in wireless fading channels.In chapter 1 ,the characterization and some statistic models and simulation models of the wireless fading channels are been introduced.Chapter 2 is paid on the theories of MIMO and OFDM.In chapter 3,a based on pilot symbols channel estimation method and its simplifiede method are discussed in detailed. In this chapter we bring forth a method that is fit to the extremely fading channels.In chapter 4,a based on subspace blind channel estimation method is introduced. This method is suitable to the MIMO-OFDM systems which adopt linear percodeing.