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On the impact of noise sensitivity on performance in 802.11 based ad hoc networks

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2 Author(s)
Desilva, S. ; Dept. of Comput. Sci., Texas Univ., San Antonio, TX, USA ; Boppana, R.V.

The IEEE 802.11 Medium Access Control (MAC) layer plays a crucial role on the overall throughput obtained in a mobile ad hoc network. We show that the virtual carrier sense mechanism as designed and used in 802.11 could have crippling effect on distant but competing transmissions. We propose a modification to mitigate this situation and show using simulations that the proposed modification provides as much as 50% higher User Datagram Protocol (UDP) throughput for static wireless networks and 10-25% higher throughput for mobile ad hoc networks.

Published in:

Communications, 2004 IEEE International Conference on  (Volume:7 )

Date of Conference:

20-24 June 2004