Summary of MAC protocols
What do you do with a shared media?
- Channel Partitioning, by time, frequency or code
- Time Division,Code Division, Frequency Division
- Random partitioning (dynamic),
- ALOHA, S-ALOHA, CSMA, CSMA/CD
- carrier sensing: easy in some technoligies (wire), hard in others (wireless)
- CSMA/CD used in Ethernet
- Taking Turns
- polling from a central cite, token passing