Name
Title | ||
|---|---|---|
Experimental evaluation of distributed ZF beamforming in an indoor multi-cell environment |
Abstract | ||
|---|---|---|
Multiuser MIMO (MU-MIMO) transmission offers higher channel capacity than SISO transmission in practical system. However, MU-MIMO channel capacity in multi-cell environment is limited by inter-cell interference (ICI). Distributed zero forcing beamforming (DZFBF) is one of candidates to improve MU-MIMO channel capacity by mitigating ICI. To evaluate the performance and feasibility of DZFBF, we have developed a real-time testbed implemented on a FPGA. For this, we also implement a simple weight generation process that uses feedback channel state information from STAs; it is a extension of the weight generation from MU-MIMO systems. Moreover, we demonstrate the real-time transmission performance of our testbed in an actual indoor multi-cell environment. The experimental results indicate that the effectiveness of DZFBF is twice as high as that of MU-MIMO transmission with TDMA. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/APCC.2012.6388141 | APCC |
Keywords | Field | DocType |
mimo communication,array signal processing,cellular radio,channel capacity,field programmable gate arrays,indoor radio,interference suppression,time division multiple access,wireless channels,dzfbf,fpga,ici mitigation,mu-mimo channel capacity,mu-mimo transmission,siso transmission,tdma,distributed zero forcing beamforming,feedback channel state information,indoor multicell environment,intercell interference mitigation,multicell environment,multiuser mimo transmission,real-time transmission performance,weight generation process,inter-cell interference,multiuser mimo,wireless lan,zero forcing beamforming | Beamforming,Computer science,Testbed,MIMO,Computer network,Real-time computing,Interference (wave propagation),Time division multiple access,Channel capacity,Precoding,Channel state information | Conference |
ISSN | ISBN | Citations |
2163-0771 | 978-1-4673-4727-3 | 0 |
PageRank | References | Authors |
0.34 | 9 | 6 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Tomoki Murakami | 1 | 16 | 7.19 |
| Koichi Ishihara | 2 | 39 | 10.89 |
| Riichi Kudo | 3 | 81 | 15.69 |
| yusuke asai | 4 | 0 | 1.35 |
| Takeo Ichikawa | 5 | 38 | 7.89 |
| masato mizoguchi | 6 | 3 | 1.76 |