A short-term fair MAC protocol for WLANs

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dc.contributor.author	Cetinkaya, Coskun
dc.contributor.author	Yildirim, Mehmet Bayram
dc.date.accessioned	2011-03-22T19:14:13Z
dc.date.available	2011-03-22T19:14:13Z
dc.date.issued	2008
dc.identifier.issn	1570-8705
dc.identifier.uri	http://hdl.handle.net/10057/3434
dc.description	This is the author's version of the work. It is posted here by permission of Elsevier for personal use, not for redistribution. Accepted for publications to Ad Hoc Networks,Vol. 6, No.6, August, 2008 doi:10.1016/j.adhoc.2007.07.006
dc.description.abstract	Designing a medium access control (MAC) protocol that simultaneously provides high throughput and allows individual users to share limited spectrum resources fairly, especially in the short-term time horizon, is a challenging problem for wireless LANs. In this paper, we propose an efficient cooperative MAC protocol with very simple state information that considers only collisions, like the standard IEEE 802.11 MAC protocol. However, contrary to the IEEE 802.11 MAC, the cooperative MAC gives collided users priority to access the channel by assigning them shorter backoff counters and interframe- spaces than users who did not participate in the collision event. In other words, collided users are the only ones allowed to transmit in the following contention period. For the cooperative MAC protocol, we utilize an analytical throughput model to obtain the optimal parameter settings. Simulation results show that the cooperative MAC provides significant improvement in short-term fairness and access delay, while still providing high network throughput.	en_US
dc.language.iso	en_US	en_US
dc.publisher	Elsevier	en_US
dc.relation.ispartofseries	Ad Hoc Networks 6 (2008) 860–877;
dc.subject	Wireless LANs	en_US
dc.subject	MAC protocol	en_US
dc.subject	Short-term fairness	en_US
dc.subject	Protocol design and analysis	en_US
dc.title	A short-term fair MAC protocol for WLANs	en_US
dc.type	Article	en_US