Q1.
a) There are two distinct types of mobility: user mobility and device portability. Distinguish giving illustration of each category.
b) Describe the functions of the given layers with respect to the wireless and mobile environment:
Physical layer, Network layer, Data link layer, Transport layer and Application layer
c) What multiplexing schemes are employed in the GSM and for what purposes? In brief explain.
Q2.
a) List all the entities of mobile IP and explain data transfer from mobile node to a fixed node and vice-versa. Why and where encapsulation is required?
b) Illustrate the meaning of WiMAX? In what manner it is similar to the DSL?
c) What benefits does the use of IPv6 offer for the mobility?
Q3.
a) What do you mean by the term mobility management? Explain two significant aspects of the mobility management.
b) What are the main merits of cellular systems with small cells? How SDM is usually realized and combined with FDM? How does DCA affect the frequencies available in the other cells?