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Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
Medium Access Control
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Medium Access Control

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Medium Access Control

Medium Access Control

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  • 1. Medium Access ControlProtocols<br />Prof. Anish Goel<br />Acknowledgement: This Lecture has been borrowed from Prof. Heechang Kim, Adjunct Prof. at NJIT, USA<br />
  • 2. Contents<br />Multiple Access Communications<br />Random Access<br />Scheduling<br />Medium Access Control Protocols Anish Goel<br />2<br />
  • 3. Multiple Access Communications<br />3<br />Medium Access Control Protocols Anish Goel<br />
  • 4. Approaches to Media Sharing<br />4<br />Medium Access Control Protocols Anish Goel<br />
  • 5. Channelization: Satellite<br />5<br />Medium Access Control Protocols Anish Goel<br />
  • 6. Scheduling: Polling<br />6<br />Medium Access Control Protocols Anish Goel<br />
  • 7. Scheduling: Token-Passing<br />7<br />Medium Access Control Protocols Anish Goel<br />
  • 8. Random Access<br />8<br />Medium Access Control Protocols Anish Goel<br />
  • 9. Selecting a Medium Access Control<br />9<br />Medium Access Control Protocols Anish Goel<br />
  • 10. Delay-Bandwidth Product<br />10<br />Medium Access Control Protocols Anish Goel<br />
  • 11. Two-Station MAC Example<br />11<br />Medium Access Control Protocols Anish Goel<br />
  • 12. Efficiency of Two-Station Example<br />12<br />Medium Access Control Protocols Anish Goel<br />
  • 13. Typical Delay-Bandwidth Products<br />13<br />Medium Access Control Protocols Anish Goel<br />
  • 14. MAC protocol features<br />14<br />Medium Access Control Protocols Anish Goel<br />
  • 15. MAC Performance<br />15<br />Medium Access Control Protocols Anish Goel<br />
  • 16. Normalized Delay versus Load<br />16<br />Medium Access Control Protocols Anish Goel<br />
  • 17. Dependence on normalized delay bandwidth product<br />17<br />Medium Access Control Protocols Anish Goel<br />
  • 18. ALOHA Random Access Scheme<br />18<br />Medium Access Control Protocols Anish Goel<br />
  • 19. ALOHA Model<br />19<br />Medium Access Control Protocols Anish Goel<br />
  • 20. Abramson’s Assumption<br />20<br />Medium Access Control Protocols Anish Goel<br />
  • 21. Throughput of ALOHA<br />21<br />Medium Access Control Protocols Anish Goel<br />
  • 22. Slotted ALOHA (reduce collision)<br />22<br />Medium Access Control Protocols Anish Goel<br />
  • 23. Throughput of Slotted ALOHA<br />23<br />Medium Access Control Protocols Anish Goel<br />
  • 24. Carrier Sensing Multiple Access (CSMA)<br />24<br />Medium Access Control Protocols Anish Goel<br />
  • 25. CSMA Options<br />25<br />Medium Access Control Protocols Anish Goel<br />
  • 26. 1-Persistent CSMA Throughput<br />26<br />Medium Access Control Protocols Anish Goel<br />
  • 27. Non-Persistent CSMA Throughput<br />27<br />Medium Access Control Protocols Anish Goel<br />
  • 28. CSMA with Collision Detection (CSMA/CD)<br />28<br />Medium Access Control Protocols Anish Goel<br />
  • 29. CSMA/CD reaction time<br />29<br />Medium Access Control Protocols Anish Goel<br />
  • 30. CSMA-CD Model (1 persistent)<br />30<br />Medium Access Control Protocols Anish Goel<br />
  • 31. Contention Resolution<br />31<br />Medium Access Control Protocols Anish Goel<br />
  • 32. CSMA/CD Throughput<br />32<br />Medium Access Control Protocols Anish Goel<br />
  • 33. CSMA-CD Application: Ethernet<br />33<br />Medium Access Control Protocols Anish Goel<br />
  • 34. Throughput for Random Access MACs<br />34<br />Medium Access Control Protocols Anish Goel<br />
  • 35. Scheduling for Medium Access Control<br />35<br />Medium Access Control Protocols Anish Goel<br />
  • 36. Reservation System Options<br />36<br />Medium Access Control Protocols Anish Goel<br />
  • 37. Basic Reservation System<br />37<br />Medium Access Control Protocols Anish Goel<br />
  • 38. Example<br />38<br />Medium Access Control Protocols Anish Goel<br />
  • 39. Efficiency of Reservation Systems<br />39<br />Medium Access Control Protocols Anish Goel<br />
  • 40. Random Access Reservation Systems<br />40<br />Medium Access Control Protocols Anish Goel<br />
  • 41. Polling Systems<br />41<br />Medium Access Control Protocols Anish Goel<br />
  • 42. Polling System Options<br />42<br />Medium Access Control Protocols Anish Goel<br />
  • 43. Application: Token-Passing Rings<br />Medium Access Control Protocols Anish Goel<br />43<br />
  • 44. Methods of Token Reinsertion<br />Medium Access Control Protocols Anish Goel<br />44<br />
  • 45. Comparison of MAC approaches<br />45<br />Medium Access Control Protocols Anish Goel<br />
  • 46. Comparison of MAC approaches<br />46<br />Medium Access Control Protocols Anish Goel<br />

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