| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2019: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2018: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2017: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
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| Outline of Final Research Achievements |
This study considers the wireless communications for industrial machines in factories. In the study of high-speed and long-distance in-factory communications with optical MIMO, the importance of the array constellations is revealed, and superiority of one-dimensional arrangements of array elements over the traditional rectangular constellations are clarified. The results of communication experiments show that the proposed system achieves 100Mbps for 60m distance, which is far above the results of previous works. For sensor network systems with optical CDMA, the introduction of hard-limiters and successive interference cancellation is proposed, and performance improvement is shown by numerical analysis and experiments.
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