Optimal Performance Study of IEEE 802.11 DCF with Contention Window

Author

Weng, Chien-Erh ; Chen, Chun-Yin ; Chen, Chiung-Hsing ; Chen, Chien-Hunh

Author_Institution

Inst. of Electron. Commun. Eng., Nat. Kaohsiung Marine Univ., Kaohsiung, Taiwan

fYear

2011

fDate

26-28 Oct. 2011

Firstpage

505

Lastpage

508

Abstract

The IEEE 802.11 protocol has achieved worldwide acceptance with WLANs with minimum management and maintenance costs. In order to maximize the throughput, stations had to spend many times to find out the best contention window. In this paper, we modified the Wang´s model and took account of the freezing of the back off counter when channel is busy. In the modified model, it is easily to obtain the optimal contention window for a given network scale. The selection of optimal contention window is just based on the network scales. Simulation results showed that the throughput is the same as Wang´s. But, the optimal contention window is less than Wang´s.

Keywords

protocols; telecommunication standards; wireless LAN; IEEE 802.11 DCF; Wang model; back off counter; distributed coordination function; optimal contention window; optimal performance; wireless LAN; Analytical models; IEEE 802.11 Standards; Markov processes; Propagation delay; Radiation detectors; Simulation; Throughput; Contention Window; DCF; WLANs;

fLanguage

English

Publisher

ieee

Conference_Titel

Broadband and Wireless Computing, Communication and Applications (BWCCA), 2011 International Conference on

Conference_Location

Barcelona

Print_ISBN

978-1-4577-1455-9

Type

conf

DOI

10.1109/BWCCA.2011.81

Filename

6103084