14a,b,c,d

Medium Access Control (MAC) Protocols 14. Within the Data Link Layer, we studied a variety of Medium Access Control (MAC) protocols to regulate access to a broadcast channel shared by many stations. For each of the following MAC protocols, provide a brief description (either algorithmic or conceptual) of how it works. Where possible, clarify the new features in each protocol that improve upon the MAC protocols earlier in the list. (a) (3 marks) Pure ALOHA (b) (3 marks) Slotted ALOHA (c)(3 marks) CSMA (d) (3 marks) CSMA/CD