For M-ary PSK/FSK, the transmitted signal is of the form
![615_2757e55b-ef08-4e2b-8182-2a865fc828e2.png](https://secure.tutorsglobe.com/CMSImages/615_2757e55b-ef08-4e2b-8182-2a865fc828e2.png)
a. Find a set of basis functions for this signaling scheme. What is the dimension of the signal space? Express si(t) in terms of these basis functions and the signal energy, E = A2/2.
b. Sketch a block diagram of the optimum (minimum PE) receiver.
c. Write down an expression for the probability of error. Do not attempt to integrate it.