- Title
- Ad hoc operations of enhanced IEEE 802.11 with multiuser dynamic OFDMA under saturation load
- Creator
- Ferdous, Hasan; Murshed, Manzur
- Date
- 2011
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/75970
- Identifier
- vital:7436
- Identifier
-
https://doi.org/10.1109/WCNC.2011.5779146
- Abstract
- In this paper, we discuss the challenges associated with integrating multiuser OFDMA in a single cell IEEE 802.11 based wireless ad hoc network and propose a new, dynamic and robust approach to improve it. Our new MAC, using OFDMA in the physical layer, can incorporate multiple concurrent transmissions or receptions in a dynamic manner and can adjust the collision probability based on the traffic load when nodes are endowed with a single half-duplex radio only. Simulation results show that for moderate number of users, our system improves throughput by up to 20%, decreases collision in control messages by up to 45% and reduces the average delay by up to 18%.
- Rights
- This metadata is freely available under a CCO license
- Reviewed
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