Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th
Conference_Location :
Calgary, BC
Print_ISBN :
978-1-4244-1721-6
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2008.430
