FairMAC: Fair sharing of multi-access channels in WLAN hotspots

Prasun Sinha, Yuval Shavitt, Ramachandran Ramjee, Danny Raz, Sneha Kasera

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We identify two typical problems in WLAN hotspots that result in unbounded unfairness between upstream and downstream flows. The first unfairness problem arises due to the uniformity of the MAC layer protocol at the access point (AP) and user nodes, that results in equal share to the AP and the user nodes but not to the individual flows. The second unfairness problem arises due to the inability of the physical layer to distinguish frame errors due to hidden terminal based collisions and frame errors due to poor signal strength. We present FairMAC, a deployable solution that addresses these unfairness problems without requiring a change to the 802.11 protocol. Thus our solution is immediately deployable in the millions of currently operational hotspots. We evaluate the performance of our protocol using simulations and a prototype implementation. We show that FairMAC provides fair access to all the flows regardless whether they are originating at the AP or a host.

Original languageEnglish
Title of host publicationProceedings - 14th International Conference on Computer Communications and Networks, ICCCN 2005
Pages113-118
Number of pages6
StatePublished - 2005
Event14th International Conference on Computer Communications and Networks, ICCCN 2005 - San Diego, CA, United States
Duration: 17 Oct 200519 Oct 2005

Publication series

NameProceedings - International Conference on Computer Communications and Networks, ICCCN
Volume2005
ISSN (Print)1095-2055

Conference

Conference14th International Conference on Computer Communications and Networks, ICCCN 2005
Country/TerritoryUnited States
CitySan Diego, CA
Period17/10/0519/10/05

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