2016 Fiscal Year Final Research Report
Sudies on Communication employing Ultra Sonic Signal
| Project/Area Number |
26420374
|
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
|
|---|
| Research Institution | Waseda University |
|---|
Principal Investigator |
|
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| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | 超音波通信 / 無線LAN / 無線通信 |
|---|
| Outline of Final Research Achievements |
WHO define affect of electricmagnetic fields to human body as 3b(out of 5) in 2011. So we must find out more safety media for near field communication. In this study, we have shown the possiblities of usage of ultrasonic communication for indoor applications and shown experimental equations for propagations and transmission rate. We conducted experiments changing symbol rates. The media is air and steel. The experimental distances are 30cm, 60cm, 120cm and 240cm. When symbol rate range is 200k-1000ksps in air, the change of EVM can be seen clearly by experimental distance and symbol rate. And then because the change of EVM in the experimental distance of30cm and 60cm is not large in symbol rate range of
200k-1000ksps, the formula is found in the experimental distance
of 120cm and 240cm.
|
| Free Research Field |
無線通信
|
