DocumentCode :
3667771
Title :
An efficient and fair MAC scheme for Wireless Mesh Networks using beamforming antennas
Author :
Ali El Masri;Lyes Khoukhi;AbdelHakim Hafid;Ahmad Sardouk;Dominique Gaiti
Author_Institution :
University Paris-Est, LIGM Lab, Marne-la-Vallé
fYear :
2015
Firstpage :
1447
Lastpage :
1451
Abstract :
Using beamforming antennas significantly improves bandwidth utilization in Wireless Mesh Networks (WMNs); however, it introduces unprecedented MAC problems (e.g., deafness). Indeed, when using directional transmissions in contention-based MAC schemes (e.g., IEEE 802.11), a node is usually unaware of all ongoing neighboring transmissions; thus, it may initiate inappropriate transmissions resulting in unfair use and waste of bandwidth. Note that most of existing beamforming MAC schemes are contention-based without consideration of fairness. In this paper, we propose EF-DMAC, a synchronized-based MAC scheme that aims at realizing efficient and fair bandwidth utilization in WMNs. EF-DMAC (1) guarantees that each node is aware of all ongoing neighboring transmissions, and thus avoids beamforming-related problems making efficient bandwidth utilization; and (2) provides per-link fairness. Compared to existing schemes, EF-DMAC reduces control overhead, maximizes bandwidth utilization, and provides fairness and scalability. The ability of EF-DMAC to provide fairness and efficiency is shown using extensive simulations.
Keywords :
"Bandwidth","Indexes","Media Access Protocol","Array signal processing","Synchronization","Deafness","Directive antennas"
Publisher :
ieee
Conference_Titel :
Wireless Communications and Mobile Computing Conference (IWCMC), 2015 International
Type :
conf
DOI :
10.1109/IWCMC.2015.7289295
Filename :
7289295
Link To Document :
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