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Research of Wireless MIMO Channel Modeling and Capacity

Author: ZhangHuaZuo
Tutor: ZhaoLiQiang
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: Multiple Input Multiple Output Space channel model Correlation Channel capacity
CLC: TN919.3
Type: Master's thesis
Year: 2009
Downloads: 788
Quote: 15
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Abstract


Multiple-input multiple-output (MIMO) technology is considered to be one of the major breakthrough in modern communications technology has increasingly become a hot research field of wireless communications . MIMO technology is an important way to achieve high data rate transmission in a wireless communication system in the future , to improve transmission quality and increase the system capacity . However , the realization of the large capacity of the MIMO wireless systems , and other properties improved greatly dependent on the model of the MIMO channel . Therefore need to establish the wireless MIMO channel simulation model to study and evaluate the performance of MIMO systems . This paper describes the development status of the research background and MIMO channel model , followed by large-scale fading and small scale fading two elaborate the basic characteristics of the wireless channel . Then classified MIMO channel modeling method , and introduces a modeling method based on the channel correlation matrix and the ray method of space - based channel model (SCM channel model ) method . And gives a direct diameter scene channel coefficient improvement program, so that the Direct Path scenes can support the form of mutual polarization antenna . And brief SCM channel model extended model (SCME channel model ) and the more scenarios WINNER channel model . SCM channel model based on the comparative analysis of the distinguished performance difference of the delay diameter , delay spread, angular spread of the channel characteristics of the the macrocell scene and microcell scenario . Finally, SCM channel model of empty correlation , channel characteristics, value distribution characteristics , and analysis of the angle expansion antenna spacing and channel characteristic value distribution and channel correlation relationship , and from the point of expansion , the role of antenna spacing and sub- sets , etc. three aspects , the focus of the discussion , analysis and simulation of the channel MIMO channel capacity .

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