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REDTACTON - DSpace at CUSAT

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RedTacton - Human Area Network Technology<br />

3.3 COMPARISON WITH OTHER NETWORK TECHNOLOGIES<br />

Performance:<br />

E: Excellent,<br />

P: Poor<br />

3.4 ADVANTAGE OVER BLUETOOTH<br />

The system envisioned by NTT, utilizes a conversion method which takes<br />

digital d<strong>at</strong>a into a stream of low-power digital pulses. These can be easily transmitted<br />

and read back through the human electric field.<br />

While it is true th<strong>at</strong> similar personal area networks are already accessible by<br />

using radio-based technologies like Wi-Fi or Bluetooth, this new wireless technology<br />

claims to be able to send d<strong>at</strong>a over the human skin surface <strong>at</strong> transfer speeds of up to<br />

10Mbps, or better than a broadband T1 connection. Receiving d<strong>at</strong>a in such a system is<br />

more complic<strong>at</strong>ed because the strength of the pulses sent through the electric field is<br />

so low.<br />

Evalu<strong>at</strong>ion criteria Wireless LAN Infrared Red<br />

Transfer Speed<br />

(Can DVD-quality images be sent?)<br />

Performance deterior<strong>at</strong>ion during periods of<br />

congestion (Simultaneous use by many<br />

people in small spaces)<br />

Duplex d<strong>at</strong>a transfer (Interactive<br />

processing)<br />

Tacton<br />

RedTacton solves this issue by utilizing a technique called electric field<br />

photonics: A laser is passed though an electro-optic crystal, which deflects light<br />

DIVISION OF COMPUTER SCIENCE ENGINEERING, SOE, <strong>CUSAT</strong> 20<br />

E<br />

P<br />

E<br />

P<br />

E<br />

E<br />

E<br />

E<br />

E

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