Experimental evaluation of distributed ZF beamforming in an indoor multi-cell environment
作者： Tomoki Murakami , Koichi Ishihara , Riichi Kudo , Yusuke Asai , Takeo Ichikawa
DOI: 10.1109/APCC.2012.6388141
关键词:
摘要: Multiuser MIMO (MU-MIMO) transmission offers higher channel capacity than SISO in practical system. However, MU-MIMO multi-cell environment is limited by inter-cell interference (ICI). Distributed zero forcing beamforming (DZFBF) one of candidates to improve mitigating ICI. To evaluate the performance and feasibility DZFBF, we have developed a real-time testbed implemented on FPGA. For this, also implement simple weight generation process that uses feedback state information from STAs; it extension systems. Moreover, demonstrate our an actual indoor environment. The experimental results indicate effectiveness DZFBF twice as high with TDMA.
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