Mobile Communication And Wireless Communication - Dec 2014

Computer Engineering (Semester 7)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) What is piconet and scatternet? Explain both in brief with appropriate diagrams.(7 marks) 1 (b) Explain functional architecture of GSM.(7 marks) 2 (a) Explain the GPRS functional architecture and its application.(7 marks) 2 (b) Explain SMMT & SMMO.(7 marks) 2 (c) Write a comparison between H.323 and SIP.(7 marks) 3 (a) Explain the handover procedure in GSM system.(7 marks) 3 (b) Why conventional network IP is not suitable for mobile environment? Describe the way in which Mobile IP works?(7 marks) 3 (c) What is CDMA technology? Explain the Direct Sequence Spread Spectrum Techniques.(7 marks) 3 (d) Explain the WAP Layered architecture and protocol stack.(7 marks) 4 (a) Explain the following TCP variants
1. Indirect TCP
2. Snooping TCP(7 marks) 4 (b) Explain the Ipv6.(7 marks) 4 (c) List Wireless LAN security issues and What do you understand by hidden & exposed terminal problem in wireless LAN.(7 marks) 4 (d) Draw and Explain Transmission Plane Protocol Architecture of GPRS.(7 marks) 5 (a) Define active RFID and passive RFID? Describe applications of active & Passive RFID.(7 marks) 5 (b) Write Note on Signalling Protocol Structure in GSM.(7 marks) 5 (c) How the packets are routed in GPRS. Explain GPRS packet routing for Inter & Intra PLMN.(7 marks) 5 (d) Explain following :
i. Draw: Cellular Structure. [Marks : 1]
ii. Justify: Cell shape is Hexagon. [Marks : 2 ]
iii. How to reuse the limited frequency band in cellular architecture [Marks : 4]
[Explain Diagrammatically. Make following assumption: Frequency Band : 100- 170 Cluster Size : 7](7 marks)