QUESTION 16

1. 1. State Shannons Theorem. Identify all terms and units of measurements used (5 points)
   2. Given a channel with an intended capacity of 25 Mbps and a bandwidth of 5 MHz. What is the signal-to-noise ratio S/N that is required to achieve this capacity? (5 points)
   3. A digital signaling system is required to operate at 8800 bps. If a signal can encode 16 distinct possible voltage values, what is the maximum achievable bandwidth assuming the channel is noiseless? (5 points)

QUESTION 18

1. 1. An image is 800 600 pixels with 2 bytes/pixel. Assume the image is uncompressed. How long does it take to transmit it over a 56-kbps modem channel? (5 points)

   2. If the bandwidth of a spectrum band ranges from 10⁶ to 10⁹ Hz, what is the corresponding wavelength range? (5 points)

   3. A client-server system uses a satellite network, with the satellite at a height of 35,000 km. What is the best-case delay in response to a request? (5 points)

QUESTION 17

1. Suppose that the following 12-bit Hamming code bit stream 101100101101 arrives at receiver. Show how you compute the error syndrome. What is the original sent bit stream?