How is bit-rate related with carrier frequency ?

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vineet27

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How is bit-rate related with carrier frequency ? Does higher carrier frequency always means high bit rate?This is how i understand it : If one bit is represented by a single carrier cycle,then obviously a 2Hz(just an assumption) carrier will take half the time in representing it than a 1Hz carrier. Is this right or is there more to it?
 

Bit rate is related directly to bandwidth and type of modulation. Generally, higher frequencies have larger bandwidth allocations, although this is not always true.
 

Hi,
Bit rate can be very low also for a high frequency carrier signal. This problem is often experienced by satellite communications engineers especially deep space flights, where data rates go down to 1bps. The mission had very low data rates, due to link margin considerations.
I would suggest you take a look at the how the Link margin are the real issues while deciding a bit rate. The implementation issues don't really bog the designer, when it comes to low data rates over high frequency bands like UHF bands.

Also, when it comes to symbol rate(and thereby the data rate) that has to do with the modulation scheme used.
 

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