Pondicherry University 2009 M.Tech Wireless Communication / Mobile Satellite Communication - Question Paper
PONDICHERRY ENGINEERING COLLEGE, PONDICHERRY -605 014. M.TECH, EXAMINATION (CBCS) JAN 2010
WIRELESS COMMUNICATION FIRST SEMESTER EC9.13 MOBILE SATELLITE COMMUNICATION
Time :3 Hours Max, Marks:60
PART-A
Answer all questions (5 X 2 = 10)
PART-A
Answer all questions (5X 2-10)
1. Define : Sun transit outage.
2. What is meant by limits of visibility?
3. What is the use of Hamming distance?
4. What are main sources of degradation affecting performance of modulation schemes in mobile communication link?
5. list the requirements of ATM satellite system.
PART -B
Answer five questions choosing one full question from each unit. (5 X 10= 50)
Unit-1
6. xxplain in detail about launching operation of satellite.
OR
7. a) Briefly explain about orbital perturbations, b) Deduce expression for motion.
Unit-ll
Explain in detail about land mobile channel.
OR
Compare the characteristics of FDMA, TDMA and CDMA in detail.
Unit-Ill
Explain the functioning of antenna tracking system with block diagram.
OR
Explain the need for inter satellite link and also list the advantages deploying ISL.
Unit-IV
Briefly explain various types of distribution models.
OR
Explain the mobility management in MSS.
. - - -----tlnit-V
Describe GPS Satellite navigation principle. Also mention different errors in the range measurement.
OR
Write notes on a) Direct TV broadcast systems. b) VAST.
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