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Design of Cognitive Radio Front-End

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Ahmed Ragheb

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Hi,

What is the performance parameters of LNA, Mixer (Up-conversion and Down-conversion), and PA for cognitive radio transceives?

Regards,
Ahmed
 

Hi, I've been looking into software defined radio(SDR) recently which I believe is something quite close to cognitive radio in terms of hardware requirements. For the receiver side, usually people can do 4 to 5 db dsb noise figure, but the biggest challenge is the linearity where out band interference significantly impacts your performance. You can check H. Darabi's recent paper
 
Hello ldynasa,

i have questions :
1) Does the value noise figure range for overall transceiver or one building block of front-end??
2) What about the range of other parameters like gain, power consumption, and linearity???
3) any references please.

thanks for your help and support.

Best regards,
Ahmed
 

I'm talking about the entire receiver's noise figure. Other parameters are pretty close to conventional RF-front ends, you can check out this one: "a 40nm CMOS 0.4-6GHz Receiver Resilient to out-of-band blockers" by Jan Craninckx.
 

hxxp://www1.ee.ucla.edu/~brweb/papers/Journals/BRAug10.pdf
 

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