In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal

is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset

can be seen by varying the phase of down-sampling

operation.The signal transmitted is recovered

at the detector output.-In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal

is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset

can be seen by varying the phase of down-sampling

operation.The　signal transmitted is recovered

at the detector output.