[Comm101011]

If I have a Bitrate Rb=64kbit/s and a Bandwidth of B=24kHz,
how many symbols do I have for QAM?
And how do I design a receiver for it?

[jood]

H/B= log2 (1+ Eb/No * H/B)
where:
H/B=> bit rate/band width(spectral effieciency)
Eb/No=> energy per bit/noise densiny.
SO from obtained Eb/No you can find the required theoretical Rx for QAM.& by adding the extra noise yuo will get the real.
# bit per symbol is constant= Nb=log2(M) = 4bit.

[nicolaaa]

Hello. I am planning to start writing my thesis about m-qam but i really did not find any basic informations about it so i would like you to explain me in easy way the meaning of MQAM systems performance , error probability evaluation, what is the basic information about them,i know something about them i need more simple.

[paraHO]

nicolaaa if I may be polite and say the first thing to do is identify title and then use the acronym.

Multi-level Quadrature Amplitude Modulation (“M-QAM”).

This is because in many instance people familar QoS etc in terms of 16-QAM and constellation relevant and even Quadrature Phase Shift Keying (“QPSK”).

M-QAM deal with detection of modulated signals for use in radio communication.

So help us with what it is you not understand please?

[Author]

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