Sheet 1

Media Access Control

1)
a) Explain the need of MAC protocols for ad hoc networks?
b) Describe in general random access and multiple access?
c) With a neat digram, explain the hidden- and exposed-terminal problem?

2)
a) Give the classification of MAC protocols with a suitable example?
b) Describe the funciton of DAMA protocol ?
c) In Which category is DAMA protocols classified? 

3) 
a) Discuss the various factors that need to be considered while estimating the link quality in the field?
b) Explain briefly the mode of operation in the IEEE802.11 CSMA/CA (collision Avoidance)?


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Wireless Ad Hoc and Sensor Networks Lecture (WS 09/10)

Prof. Dr. Dieter Hogrefe, Dr. Omar Alfandi

Georg-August-Universität Göttingen
Institut für Informatik
Goldschmidtstrasse 7
37077 Göttingen