Can you see chaos?---Chaos CDMA Demonstration.



Uploaded by: chaosware
Video Description:
Demonstration of Chaos CDMA Communications Systems at ChaosWare's Lab in 2005. While the narration is given in Japanese, you can see a real-time chaotic modulated baseband signals generated at the Chaos-CDMA reciever. Note that the frequency band is 2.4 GHz and this experiment was financially supported by NICT and JST.


Tags for this video: 2.4GHz 4G CDMA Chaos chaosware FPGA JST NICT RIKEN Wlan

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Wow. A working demo ... ( 1 year ago by WirelessAT)
Wow. A working demo ?
Would you sync them better ? I couldn't tell.
I think it is just one link right ? Was there any aggressor ? Is it susceptible to microwave oven ? How do you cope with digital
spread & ACI?
Correct me if I am ... ( 1 year ago by WirelessAT)
Correct me if I am wrong.
I don't think you have built the RF front-end
right ? Because I think I see a pair wireless G modem.
Are you just showing the implemention of FPGA ? Do you employ encryption. If so, does it has provable security ? And what is the strength ? Could you show us your BER vs. Eb/No curve ? What is your data rate ? It is real time right ?
Thanks
I think by ... ( 1 year ago by WirelessAT)
I think by definition 2:1 is the absolute min requirement for a CDMA system. Without introducing any interference to the channel, I am not sure this demo is very meaningful. Because the advantage of spreading is not shown. Immunity/susceptibility of AWGN also is not proven.. Again, I could be wrong..
BTW, is this company still existing ? If so, could we have the "direct" contact info ?
Thanks in advance.



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