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Research and Implementation of Channel Estimation Based on MIMO-OFDM Systems

Author: WangYiHeng
Tutor: ZhangHaiLin
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: OFDM system MIMO system Channel estimation techniques DSP
CLC: TN919.3
Type: Master's thesis
Year: 2009
Downloads: 259
Quote: 2
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Abstract


Based on MIMO-OFDM based communication systems is the future direction of the development of wireless communication , especially the present study popular 4G communication has even more as the first key technologies ; MIMO-OFDM system combines the advantage of OFDM integration MIMO the user capacity expansion technology, the system performance has greatly improved ; channel estimation performance of the architecture of the merits of the key . This paper studies the channel estimation method based on MIMO-OFDM systems , and DSP realized . The paper on the analysis of the OFDM traditional letter Road estimated basis MIMO under the based guide frequency , the LS and MMSE such channel estimation method and the various methods of the performance , and compare the different channel under the channel estimation method of the merits of resistance . MIMO channel estimation methods , given the time-varying the the typical weakness channel channel estimation method using MATLAB system simulation to verify the correctness of the theory . Using DSP to achieve the optimal performance of the channel estimation method . Optimized DSP implementation , its functionality and performance to achieve the better the effect of the channel estimation and according to the characteristics of the DSP .

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