| Summary: | 碩士 === 國立交通大學 === 電信工程研究所 === 104 === In this thesis, a mobile communication system using massive MIMO OFDM is proposed in order to meet the demand for the future wireless communion. We start from a cellular system with a RSS (Received Signal Strength) based cell searching method. And a channel model for millimeter wave is introduced. In our system, both UL and DL schemes are proposed and examined by simulation. In UL phase, PIC (Parallel Interference Cancellation) and MRC (Maximum Ratio Combining) are used to estimate channel and detect data without additional spectrum resources. In DL phase, MRT pre-coding based on UL estimated channel is employed to simultaneously transmit intra-cell user’s data using the whole bandwidth. For inter-cell interference, we utilize the 95%-likely SIR value as a criterion in our simulation. The simulation results show that even under such strict condition, our system can still achieve very good system capacity.
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