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Anna University
Question Paper Code :5.1416:
B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2014.
Seventh Semester
Electronics and Communication Engineering
EC 2401/EC 71/10144 - WIRELESS COMMUNICATION
(Regulation 2008/2010)
(Coradion to PTEC 2401 Wireless Communication for.B.E. (Part-time)
Sixth Semester Electronics and communication engineering Regulation 2009).
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PART A — (10 X.2 = 20 marks)
1. What are the basic requirements for wireless services?
2. Whit is frequency hopped multiple access?
3. State the propagation effects in mobile radio.
4. Interpret link budget equation.
5. What are the:main features of QPSK?.
6. What are Rayleigh and Ricean fading?
7. • Compare macro and micro diversity.
8. What are the application of non linear equalizers?
9: Why QPSK is preferred for wirele6s communication?
10. List the advantages of third generation (3G) networks.
PART B — (5 x 16 = 80 marks)
11 (a) (i) a Discuss about the technical challenges faced by the wireless communication. . (10)
(ii) What are the features.of interference limited systems. (6)
Or
(b) What are the major differences between TDMA, FDMA and GDMA? Explain in detail about each multiple access. (16)
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