1.
Explain
the applications of mobile computing.
2. Name the main elements of the GSM system
architecture and describe their functions. What are the advantages of
specifying not only the radio interface but also all internal interfaces of the
GSM system?
3. How is localization, location update, roaming etc., done in GSM and reflected in the databases? What are typical roaming scenarios?
4. What are the functions or authentication and encryption in GSM? How is system security maintained?
5. (A) Who performs the MAC algorithm for SDMA? What could be possible roles of mobile stations, base stations and planning from the network provider?
(B). How are guard spaces realized between users in CDMA?
6. Explain about FDMA
7. (A) Define the Hidden and Exposed terminals problem
(B) Explain slotted aloha
8. Explain Polling and Inhibit sense Multiple Access
9. List the entities of mobile IP and describe data transfer from a mobile node to a fixed node and vice-versa. Why and where is encapsulation needed?
10. Explain how tunneling works in general and especially for mobile IP using IP-in-IP, minimal and generic routing encapsulation respectively. Discuss the advantages and disadvantages of these three methods.
11. What is IP packet delivery? Explain it.
12. What is the basic purpose of DHCP? Name the entities of DHCP.
13. Explain indirect – TCP
14. Explain snooping TCP.
15. Explain mobile TCP. How does a supervisory host send TCP packets to the mobile node and to a fixed TCP connection? Give the advantages and disadvantages of mobile TCP.
16. Compare several enhancements to TCP for mobility.
3. How is localization, location update, roaming etc., done in GSM and reflected in the databases? What are typical roaming scenarios?
4. What are the functions or authentication and encryption in GSM? How is system security maintained?
5. (A) Who performs the MAC algorithm for SDMA? What could be possible roles of mobile stations, base stations and planning from the network provider?
(B). How are guard spaces realized between users in CDMA?
6. Explain about FDMA
7. (A) Define the Hidden and Exposed terminals problem
(B) Explain slotted aloha
8. Explain Polling and Inhibit sense Multiple Access
9. List the entities of mobile IP and describe data transfer from a mobile node to a fixed node and vice-versa. Why and where is encapsulation needed?
10. Explain how tunneling works in general and especially for mobile IP using IP-in-IP, minimal and generic routing encapsulation respectively. Discuss the advantages and disadvantages of these three methods.
11. What is IP packet delivery? Explain it.
12. What is the basic purpose of DHCP? Name the entities of DHCP.
13. Explain indirect – TCP
14. Explain snooping TCP.
15. Explain mobile TCP. How does a supervisory host send TCP packets to the mobile node and to a fixed TCP connection? Give the advantages and disadvantages of mobile TCP.
16. Compare several enhancements to TCP for mobility.
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