:::|| VU Google Group ||::: who can solve these three questions OF DATA COMMUNICATION... pls solve CS601

Solve the following. Show all the work to get full credit.

1) A binary signal is sent over a 3 kHz. Channel. Signal's S/N ratio is 3162 (36dB).
Calculate the maximum achievable data rate?
2) Find the maximum data rate of a noiseless 4-kHz channel-using Analog encoding
e.g. QPSK with 2 bits per sample?


2)The following questions deal with CRC error detecting code.  
a. Given a message M = 1010001101, determine the CRC using the polynomial  
P = x5+ x4+x2+1.  

b. What is the transmitted message T.
c. How does the receiver check whether the message T was transmitted without any
errors?



3)Draw the digital signals for the bit string 0101 0100 1100 111 using NRZ-I and RZ
encoding schemes. A 0 is represented by a high value and a 1 is represented by a low
value.
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