I'll be grateful to you if you answer the questions below :
1-) Multiplexing is a mechanism to share a system (link) resource.
Define, explain "time-division multiplexing" and "statistical
2-) Explain spread spectrum tecniques in a wireless (802.11) system.
How do you implement collision avoidence in such a system.
3-) How QoS is implemented in cell switching (ATM)? Please give ATM
cell format and explain the functions of VPI and VCI.
4-) What is wraparound in TCP? What is done to avoid it?
5-) Shortly explain IntServ(RSVP) and DiffServ.
6-) Effective resource allocation is explained by the use of
Power=Throughput/Delay graph. Draw this graph and explain what happens
as the load increases.