Wireless Technology : Question Paper Dec 2016 - Information Technology (Semester 7)

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Wireless Technology - Dec 2016

Information Technology (Semester 7)

TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.

1(a) Assume a cellular system of 32 cells with a cell radius of 1.6 km, a total spectrum allocation that supports 336 traffic channels, and a reuse pattern of 7. calculate the total service area covered with the number of channels per cells, and a total system capacity. Assume regular hexagonal topology.

(10 marks) 00

1(b) Explain the main factors of change in economics of wireless technology.

(10 marks) 1988

2(a) Define piconet and scatternet. Expalin Bluetooth protocol stack structure.

(10 marks) 1980

2(b) Explain WIMAX system and compare the different 802.16 standards.

(10 marks) 1983

3(a) Explain GPRS architecutre and explain how authentication and encryption is provided in GSM.

(10 marks) 00

3(b) Explain 802.11 MAC management functions. Expain in detail Power Management function with a neat diagram.

(10 marks) 00

4(a) Write short note on wireless sensor networks.

(5 marks) 00

4(b) Explain Hidden and exposed terminal problem with solution.

(5 marks) 1964

4(c) Why is the concept of Spread Spectrum important? Briefly explain FHSS and DSSS concept.

(10 marks) 1968

5(a) With a neat diagram explain Electromagnetic Spectrum. List the advantages and disadvantages of wireless technology.

(10 marks) 00

5(b) Neatly explain the WLL Architecture. Explain the two local loop techniques with diagram.

(10 marks) 1974

Write a short note any two Q6.(a,b,c,d)

6(a) VPN

(10 marks) 1987

6(b) Multiple Access Techniques

(10 marks) 00

6(c) Handoff Strategies

(10 marks) 00

6(d) Mobile IP

(10 marks) 817

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