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Using 4-psk to send symbols of 4 bits

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makis0987

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4 psk

How can i use 4-psk to send symbols of 4 bits?
 

Communications_Engineer

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simple 4-psk? I dont think you can send 4 bits.

There might be other ways though, like first encode 2 bits as one symbol and then two symbols as one 4-PSK symbol. then in theory you will be able to send 4 bits
 

makis0987

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maybe i have not ubderstand the question.
Its a problem which says:
a source produce 8 symbols with the same probability , 5*10^4 symbols per second.
If the outputs efficiency is 0.75( from this i understand that i need 4 bits pes symbol) and bandwidth=50KHz, how would be a telecommunication system with 4-psk which would permit the transmission through channel with frequency response |C(f)=a|.
 

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