This document discusses different medium access control protocols. It covers random access protocols like ALOHA and slotted ALOHA, carrier sensing protocols like CSMA and CSMA/CD, and scheduling protocols like polling and token passing. It provides analysis of the throughput and efficiency of these different MAC protocols. It also compares the approaches and discusses factors in selecting a MAC protocol.

1. Medium Access ControlProtocolsProf. Anish GoelAcknowledgement: This Lecture has been borrowed from Prof. Heechang Kim, Adjunct Prof. at NJIT, USA

2. ContentsMultiple Access CommunicationsRandom AccessSchedulingMedium Access Control Protocols Anish Goel2

3. Multiple Access Communications3Medium Access Control Protocols Anish Goel

4. Approaches to Media Sharing4Medium Access Control Protocols Anish Goel

5. Channelization: Satellite5Medium Access Control Protocols Anish Goel

6. Scheduling: Polling6Medium Access Control Protocols Anish Goel

7. Scheduling: Token-Passing7Medium Access Control Protocols Anish Goel

8. Random Access8Medium Access Control Protocols Anish Goel

9. Selecting a Medium Access Control9Medium Access Control Protocols Anish Goel

10. Delay-Bandwidth Product10Medium Access Control Protocols Anish Goel

11. Two-Station MAC Example11Medium Access Control Protocols Anish Goel

12. Efficiency of Two-Station Example12Medium Access Control Protocols Anish Goel

13. Typical Delay-Bandwidth Products13Medium Access Control Protocols Anish Goel

14. MAC protocol features14Medium Access Control Protocols Anish Goel

15. MAC Performance15Medium Access Control Protocols Anish Goel

16. Normalized Delay versus Load16Medium Access Control Protocols Anish Goel

17. Dependence on normalized delay bandwidth product17Medium Access Control Protocols Anish Goel

18. ALOHA Random Access Scheme18Medium Access Control Protocols Anish Goel

19. ALOHA Model19Medium Access Control Protocols Anish Goel

20. Abramson’s Assumption20Medium Access Control Protocols Anish Goel

21. Throughput of ALOHA21Medium Access Control Protocols Anish Goel

22. Slotted ALOHA (reduce collision)22Medium Access Control Protocols Anish Goel

23. Throughput of Slotted ALOHA23Medium Access Control Protocols Anish Goel

24. Carrier Sensing Multiple Access (CSMA)24Medium Access Control Protocols Anish Goel

25. CSMA Options25Medium Access Control Protocols Anish Goel

26. 1-Persistent CSMA Throughput26Medium Access Control Protocols Anish Goel

27. Non-Persistent CSMA Throughput27Medium Access Control Protocols Anish Goel

28. CSMA with Collision Detection (CSMA/CD)28Medium Access Control Protocols Anish Goel

29. CSMA/CD reaction time29Medium Access Control Protocols Anish Goel

30. CSMA-CD Model (1 persistent)30Medium Access Control Protocols Anish Goel

31. Contention Resolution31Medium Access Control Protocols Anish Goel

32. CSMA/CD Throughput32Medium Access Control Protocols Anish Goel

33. CSMA-CD Application: Ethernet33Medium Access Control Protocols Anish Goel

34. Throughput for Random Access MACs34Medium Access Control Protocols Anish Goel

35. Scheduling for Medium Access Control35Medium Access Control Protocols Anish Goel

36. Reservation System Options36Medium Access Control Protocols Anish Goel

37. Basic Reservation System37Medium Access Control Protocols Anish Goel

38. Example38Medium Access Control Protocols Anish Goel

39. Efficiency of Reservation Systems39Medium Access Control Protocols Anish Goel

40. Random Access Reservation Systems40Medium Access Control Protocols Anish Goel

41. Polling Systems41Medium Access Control Protocols Anish Goel

42. Polling System Options42Medium Access Control Protocols Anish Goel

43. Application: Token-Passing RingsMedium Access Control Protocols Anish Goel43

44. Methods of Token ReinsertionMedium Access Control Protocols Anish Goel44

45. Comparison of MAC approaches45Medium Access Control Protocols Anish Goel

46. Comparison of MAC approaches46Medium Access Control Protocols Anish Goel