MODEL PAPER

B. Tech (IT) Degree Examination

Forth Year - First Semester

SATELLITE AMD MOBILE COMMUNICATIONS (Elective I)

Effective from the admitted batch of 2004-2005

Time: 3 hrs
Max Marks: 70

First Question is Compulsory

Answer any four from the remaining questions

All Questions carry equal marks

Answer all parts of any question at one place

1. (a) What are synchronous satellites?
(b) Why the uplink and down link frequencies are different?
(c) What are active and passive satellites?
(d) What are the various interferences that may affect the satellite link performance and design?
(e) What are the key attributes of Intelligent Network?
(f) What is the principle of cellular systems?
(g) Explain about the different multiple accesses technologies in cellular system?

2. (a) Explain the working of an earth station with the help of block diagram? (10)
(b) What are the advantages of satellite communications? (4)

3. (a) Obtain the complete link design of Satellite communication? (10)
(b) Explain the significance of C/N and G/T ratios? (4)

4. (a) Explain TDMA Technology in Satellite communication? (5)
(b) Explain about TDMA frame structure and burst structure? (9)

5. (a) What are the frequency bands allocated to Satellite communications and explain reasons? (4)
(b) What are the satellite subsystems? Explain each briefly. (10)

6. (a) Explain the general principles in cellular system operation and planning. (10)
(b) Explain about AMPS system. (4)

7. (a) Explain about GSM reference architecture and function partitions. (10)
(b) What is GSM protocol model? (4)

8. (a) Explain the Iridium system architecture. (7)
(b) Explain the procedure of call setup in global star system. (7)

Engineering Colleges in India
Get the most comprehensive list of Engineering Colleges in India

Engineering Admission Notifications
Recent Notifications for admissions to various Engineering Colleges in India