| At present, as a mainstream standard of 3rd Generation Wireless Communication Systems (3G), TD-SCDMA system has been receiving extensive attention and it is developing rapidly with technical predominances. MIMO technology is one of the key technologies in new generation systems. The application of MIMO technology in TD-SCDMA system was considered. It can remarkably increase the data rate of TD-SCDMA system with MIMO technology. Therefore, this thesis researchs on MIMO technology and its applications in TD-SCDMA system.The main achievements of this thesis are indicated in the following aspects:1. Basing on the analysis of channel model and channel capacity in MIMO system, we research on the coding architectures and decoding algorithms of Bell Laboratory Layered Space Time (BLAST) systems. It is studied several decoding algorithms of BLAST systems. With the simulations of these algorithms, we compare and analyze the corresponding results in this thesis. Furthermore, in the case of correlated channels, we also simulate and analyze the performance of Vertical BLAST system.2. This thesis mainly reseachs on MIMO technology scheme in 3GPP and its applications in TD-SCDMA system. The focuses in this thesis are the application of PARC and the PSRC technologys in TD-SCDMA system, which is compatible with beam-forming.3.It is studied how to use AMC and HARQ technologys with MIMO technology in TD-SCDMA to increase peak and mean throughinput, improve BLER performance and optimize QoS. We improve ED algorithm with the measure of AMC channel quality. In the realistic case, we propose several schemes with PARC MCS bounds selection and analyse accordingly.4. Being based upon the simulation link of TD-SCDMA MIMO system, we improve the transmitting data module and receiving data module with increasing AMC and HARQ modules, which achieve the function of PARC and PSRC, finally achieve rate control. Furthermore, the simulation results and analyses are given in the end of this thesis. |
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