Mimo Wireless Channel Modeling And Simulation

The Multiple-Input Multiple-Output (MIMO) technology is considered as one of the most promising breakthrough technology to improve system performance, enhance the capacity and spectrum efficiency. The MIMO technology has been already used in such systems as 3G, B3G and broadband wireless access. Although, the high performance promised by MIMO technology is highly dependent on the propagation channels. Meanwhile, we need to establish MIMO radio channel models and corresponding simulations to research key technologies and algorithms in MIMO systems and to evaluate the system performance. Based on such reasons, in this dissertation, some research on MIMO radio channel modeling was done, and we proposed a stochastic MIMO channel model which could serve as a generalized MIMO radio channel model in MIMO technology research. The computer-aided simulation models of MIMO radio channels in 3GPP, IEEE802.16, IEEE802.11n and distributed MIMO systems were established. A lot of simulation results were obtained based on these simulation models, and some analyses and comparison of the results were made. The main contents of this dissertation are expressed as follows:In the first chapter, we introduced the background and the significance of the research in this dissertation as well as the state-of-the-art in MIMO radio channel modeling. Some concentrated problems and fundamental questions were also pointed out.In the former part (chapter two) of the dissertation, further conclusions on MIMO radio channel modeling were made. Then, based on the existing methods of MIMO wireless channel modeling and a variety of present MIMO wireless channel models, we integrated a wideband MIMO channel model. It's of stochastic type and uses the angle of arrival, angle of departure, azimuth spread, the topology of both transmitter and receiver, the Doppler spectrum, the power delay profile, etc. as its parameters. And we discussed an equivalent method to model the spatial correlation of MIMO channel. We also described the definition and the calculation of spatial correlation coefficient of MIMO channel based on three common power azimuth spectrums in detail. At the end...