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WirelessAT (October 1, 2007 at 9:27 pm)
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.
chaosatchaos (September 22, 2007 at 4:33 am)
Yes, its is just one link. (We already 2 to 1multiple access communications demo as shown in the posters.) This is based on the chaos code spectrum spreading (implemented in FPGA).
WirelessAT (September 21, 2007 at 5:47 pm)
Correct me if I am wrong.I don't think you have built the RF front-endright ? 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
WirelessAT (September 21, 2007 at 3:57 pm)
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 digitalspread & ACI? |
