Communications Blockset

How the Model Executes

This model executes in the following sequence:

1. The Random Integer Generator block serves as the source, producing a sequence of integers.
2. The Integer to Bit Converter block converts each integer into a corresponding binary representation.
3. The M-PSK Modulator Baseband block modulates the data in complex envelope format, using a Gray-coded constellation ordering.
4. The AWGN Channel block adds white Gaussian noise to the modulated data.
5. The M-PSK Demodulator Baseband block demodulates the corrupted data.
6. The Bit to Integer Converter block converts each binary representation to a corresponding integer.
7. One copy of the Error Rate Calculation block (labeled Error Rate Calculation1 in this model) compares the demodulated integer data with the original source data, yielding symbol error statistics.
8. Another copy of the Error Rate Calculation library block (labeled Error Rate Calculation2 in this model) compares the demodulated binary data with the binary representations of the source data, yielding bit error statistics.

Gray Coded 8-PSK Demo

Variables in the Model