Research on Multi-Slot Virtual Collision Mechanism for IEEE 802.11 DCF

Author

Kang, Kai ; Jiang, Hongqi ; Lin, Xiaokang

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing

fYear

2008

fDate

21-24 Sept. 2008

Firstpage

1

Lastpage

6

Abstract

A mechanism named virtual collision mechanism (VCM) was proposed to improve IEEE 802.11 distributed coordination function´s (DCF) performance, in which a super slot includes two slots. This paper extends the 2-slot VCM into multi-slot VCM and proposes the multi-slot VCM´s model, in which a super slot includes several slots. Plenty of simulations and analysis are carried out to evaluate the multi-slot VCM´s performance and explore how the number of slots in a super slot influences the performance of the multi-slot VCM. From the simulation and analytical results, we draw the conclusion that the performance of the multi-slot VCM is much better than that of 2-slot VCM and the 3-slot VCM is the best choice in the multi-slot VCM.

Keywords

access protocols; wireless LAN; IEEE 802.11; distributed coordination function; multislot virtual collision mechanism; Airports; Analytical models; Costs; Hardware; Local area networks; Media Access Protocol; Multiaccess communication; Performance analysis; Throughput; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th

Conference_Location

Calgary, BC

ISSN

1090-3038

Print_ISBN

978-1-4244-1721-6

Electronic_ISBN

1090-3038

Type

conf

DOI

10.1109/VETECF.2008.430

Filename

4657262