Simulink 16QAM - Configuration and Quetions

Hello,!

I'm trying to simulate communications systems by comparing the modulation schemes like QPSK, BSPK, QAM ...!! I am also comparing a system with 16QAM coding reed-solomon and without reed solomon encoding.

I wonder if the settings are correct block AWGN

The parameters are:

Random integer generator, sample time = 1 sample per frame = 9

RS Encoder (integer format) code - (15, 9)

I'm convert integer symbols in bits here.after....

Modulador 16QAM - binary input Gray Map

AWGN Block: Mode EbNo EbNo +10 * log10 (9 / 15)

number bit per symbol = 4

input signal power = 1 watt

symbol period = 1 * (9 / 15)

these settings are correct?

How can I now view the sinc spectrum the modulated signal? would have to use high cosine filter? how can add this filter in my model? after QAM modulator? could give me tips on how to configure the block FFT spectrum to look at spectra of QPSK QAM signals .. .. etc?

Much THANKS! thankss!! Ricardo zan