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Research on a Variety of Coding and Decoding Methods in MIMO-OFDM System

Author: GuoSenBao
Tutor: SunXianZuo
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: MIMO-OFDM Space-time coding Iterative Decoding MIMO-OFDM space-time -frequency domain hybrid coding
CLC: TN919.3
Type: Master's thesis
Year: 2009
Downloads: 135
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Abstract


MIMO technology can increase exponentially in the case of without sacrificing bandwidth and does not increase the transmission power of the channel capacity. Orthogonal frequency division multiplexing (OFDM) is a multi-carrier transmission technology , can be effective against the frequency selective fading and narrow-band interference . MIMO-OFDM technology diversity MIMO OFDM advantages of both a become academia and industry and research focus and WIMAX and LTE agreements regarded the MIMO-OFDM technology as a key technology for the physical layer . First, the basic principles of MIMO technology and the OFDM technology are briefly introduced , and an overview of the LTE protocol MIMO-OFDM physical layer application instance . Then analyzes the radio channel characteristics and models , and variety of channel capacity of the MIMO system , the analysis and comparison ; next introduced the basic principles of the space-time coding , to analyze the performance of the space-time coding , the MIMO-OFDM system classification and performance analysis , and then put forward a variety of VBLAST-OFDM technology to improve the decoding algorithm and performance analysis , followed by a detailed analysis of the iterative decoding algorithm of Turbo-BLAST-OFDM system improvements , and traditional decoding algorithm comparison; Finally , for a more flexible application coding advantage of a variety of space-time , depending on the conditions of selection of different coding combinations , to improve the overall performance of the system , put forward the concept of space-time MIMO-OFDM frequency domain hybrid coding and classification principle and structure of the system to do a detailed analysis and comparison .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Data communication > Data transmission technology
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