Model question of Wireless Networking

Tribhuwan University

Bachelor of Computer Science and information Technology
Wireless  Networking

Course Title: Wireless Netwoking                                              Full Marks : 60 + 20 + 20


Course no  :  CSC-308                                                                   Pass Marks: 24+8+8


Credit Hrs :  3Hrs

Nature of course: Theory (3 Hrs.)

Course Synopsis: This course contains the concept of wireless networking technology.

Goal:   To provide the concept and working principle for wireless communication and      networking.

Model Questions:

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Attempt all questions:                                                      10 * 6 = 60



1)   List out the keypoints of wireless communication development. What are the challenges in wireless  communication network? [3+3]


2)    A GSM system operating at 900 MHz has operating power of 40W. The transmitter and receiver gain are 5 dB each. By using free space path loss.

a.      Express the transmission power in dBm.

b.     Calculate free space path loss between the BS and MS separated by 5 km.

c.      Calculate received power. [3*2]

3)   Define modulation.  Explain about GMSK transmitter and receiver. [1+3+2]

4)  Define diversity. Explain different diversity mechanism. [2+4]

5)   Explain the concept of frequency reuse. In AMPS cellular system with 30 kHz channel BW, a S/I of 18 dB is required for acceptable speech quality. By using path loss exponent of 4,          
                  a)  Calculate D/R.
          b)    Calculate the cluster size or frequency reuse factor. [3+3]

6)      Explain briefly about different techniques for capacity increase in cellular system. [6]

7)    What is multiple access technique? Write briefly on TDMA with its advantages over FDMA. [1+5]

8)    Describe the steps involved in setting up the call between the calling MSC and the called MSC with flow diagram. [6]

9)    Write briefly on operation of mobile IP. [6]

10)    Write short notes on [any two]  [2*3]

a.      Rayleigh fading

b.     QPSK

c.      MIPv4 vs MIPv6

d.     Handoff management