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A Single-Channel Solution for Transmission Power Control in Wireless Ad Hoc Networks

A Single-Channel Solution for Transmission Power Control in Wireless Ad Hoc Networks. Alaa Muqattash and Marwan Krunz University of Arizon MobiHoc 2004 Presenter :gigigi. Outline. Introduction Motivation Power control MAC protocol (POWMAC) Detail Simulation environment and results

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A Single-Channel Solution for Transmission Power Control in Wireless Ad Hoc Networks

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  1. A Single-Channel Solution for Transmission Power Controlin Wireless Ad Hoc Networks Alaa Muqattash and Marwan Krunz University of Arizon MobiHoc 2004 Presenter :gigigi

  2. Outline • Introduction • Motivation • Power control MAC protocol (POWMAC) • Detail • Simulation environment and results • Conclusions

  3. Introduction - IEEE 802.11 D C F E B A

  4. Motivation - Power Control D C F E B A

  5. POWMAC – RTS(MAX) D C F E B A

  6. POWMAC – CTS (adjustable) D C F E B A

  7. POWMAC – DTS(MAX) D C F E B A

  8. POWMAC – Access Window D C F E B A

  9. POWMAC - DATA(adjustable) D C F E B A

  10. POWMAC - ACK (adjustable) D C F E B A

  11. POWMAC

  12. Details • The maximum tolerable interference (MTI) of node u, denoted by • Channel gain Gi ubetween nodes i andu

  13. Details - RTS • the maximum allowable TP that node i can use without disturbing any of its neighbors

  14. Details - RTS

  15. Details - CTS

  16. Details - CTS

  17. Details - CTS

  18. Details - DTS

  19. Details - ACK • FEC code • the same power level that would have been used if i were to send a data packet to j.

  20. Simulation parameters

  21. Simulation environment

  22. Simulation result

  23. Simulation result

  24. Simulation result

  25. Simulation environment - Random Grid • 16 mobile nodes • square area of length 1500 meters. • The square is split into 16 smaller squares

  26. Simulation result - Random Grid

  27. Simulation result - Random Grid

  28. Simulation environment - Clustered • 600 × 600 • split into 4 equal groups, each occupying a 100 × 100 square in one of the corners of the complete area

  29. Simulation result - Clustered

  30. Simulation result - Clustered

  31. Conclusion • Single transceiver and single channel • Improve the network throughput by up to 45% in random grid topologies and much more than that in clustered topologies.

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