Question: A sine wave is to be used for two different signaling schemes: (a) PSK; (b) QPSK. The duration of a signal element is 10-5 s.

A sine wave is to be used for two different signaling schemes:

(a) PSK;

(b) QPSK.

The duration of a signal element is 10-5 s. If the received signal is of the following form:

s1t2 = 0.005 sin12p106t + u2V and if the measured noise power at the receiver is 2.5 * 10-8 watts, determine the Eb/N0 (in dB) for each case.

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