Wireless Communication

Running head: WIRELESS COMMUNICATION
Wireless Communication
Name of the Student
Name of the University
Author Note

2
WIRELESS COMMUNICATION
Answer
1:
a. Two level Amplitude Shift Keying
 CW modulation has Amplitude Shift Keying as
its simplest type.
 ASK modulator has been a multiplier accompanied with the BPF.
 NRZ digital signal is multiplied with sinusoidal carrier
 As per multiplication process, ASK will provide a binary 1 as its
transmission.
 In correspondence to binary 0 ASK gives output 0.

3WIRELESS COMMUNICATION
b. Two level Frequency Shift Keying
 Carrier signal varies in FSK as per the digital input but alteration in
amplitude is not seen.
 Output of wave that is FSK modulated, high frequency is observed
in the modulated wave as per the binary input 1 and low for binary
input 2.
c. Two level Phase Shift Keying
 Binary PSK finds its use in high bit rate.
 Bipolar digital signal is responsible for the carrier phase change in between 0
and 180 degree.
.

4WIRELESS COMMUNICATION
d. Differential Phase shift keying