MAC layer fairness in IEEE 802.11 DCF based Wireless Mesh Networks

Author

Chakraborty, Sandip ; Nandi, Sukumar

Author_Institution

Dept. of Comput. Sci. & Eng., Indian Inst. of Technol., Guwahati, India

fYear

2012

fDate

Jan. 30 2012-Feb. 2 2012

Firstpage

1138

Lastpage

1143

Abstract

Fairness provisioning in IEEE 802.11 DCF based Wireless Mesh Networks is a very challenging task due to unfair nature of 802.11 DCF based MAC protocol. In this paper, notion of proportional fairness is used in WMN where each node gets channel share proportional to their load. A load estimation strategy is proposed at each WMN node, which in turn estimates required channel share for every node. A probabilistic approach is used to tune the contention window based on the difference between actual channel share and required channel share. Simulation result shows that the proposed scheme works better than the standard IEEE 802.11 based DCF MAC in terms of fairness and throughput.

Keywords

access protocols; channel estimation; probability; wireless LAN; wireless mesh networks; IEEE 802.11 DCF; MAC layer fairness provisioning; MAC protocol; channel estimation; contention window; load estimation strategy; probabilistic approach; wireless mesh networks; Aggregates; Channel estimation; Estimation; IEEE 802.11 Standards; Logic gates; Throughput; Wireless mesh networks; DCF; Fairness; MAC; Wireless Mesh Network;

fLanguage

English

Publisher

ieee

Conference_Titel

Computing, Networking and Communications (ICNC), 2012 International Conference on

Conference_Location

Maui, HI

Print_ISBN

978-1-4673-0008-7

Electronic_ISBN

978-1-4673-0723-9

Type

conf

DOI

10.1109/ICCNC.2012.6167386

Filename

6167386