Mimo Systems, Joint Transceiver Beamforming Algorithm

Digital communication using multiple-input-multiple-output(MIMO) has recently emerged as one of the most significant technical breakthroughs in modern communications. With multiple antennas both at the transmitter and receiver, MIMO can increase the system capacity and the spectrum efficiency a lot at no cost of extra spectrum. MIMO System is likely to become one of the key techniques of the next generation of wideband mobile communications.In this thesis, the beamforming techniques in MIMO system have been analyzed. The definition of beamforming in MIMO system is much different from the classic beamforming techniques. The beamforming in MIMO system is not the beamforming in (classic) realistic space but the matrix space. The beamforming techniques in MIMO system can keep good performance in interference cases. The main work in the dissertation are as follows:1. The three joint transmission and receiving beamforming techniques (including JTR-MRB, JTR-SDB and JTR-EGB) in single-user MIMO system are investigated in detail. And then the three joint transmission and receiving beamforming techniques are simulated in MATLAB.2. Based on the simulating of the joint transmission and receiving beamforming techniques of single-user MIMO system, the JTR-MRB and the JTR-EGB in multi-user MIMO system and the implement solutions are studied in detail. And the JTR-MRB and the JTR-EGB techniques are simulated in MATLAB.3. The JTR-EGB technique in multi-user MIMO system is implemented on ADSP-TS101S because the JTR-EGB has more modest hardware requirements. And the implement solution on DSP is emulated on the ADSP-TS101S EZ-KIT Lite hardware platform.