DocumentCode :
414830
Title :
Adaptive RTS/CTS mechanism for IEEE 802.11 WLANs to achieve optimal performance
Author :
Zhen-ning Kong ; Tsang, Danny H. K. ; Bensaou, Brahim
Author_Institution :
Hong Kong University of Science and Technology
Volume :
1
fYear :
2004
fDate :
20-24 June 2004
Firstpage :
185
Lastpage :
190
Abstract :
In IEEE 802.11 WLANs, there are two types of access modes which perform very differently under different channel or traffic conditions: the basic access mode CSMA/CA and and an RTS/CTS based mechanisms. In seeking to balance between the use of the different modes, the contribution of this paper is threefold. Firstly, we present our development of a new method capable of calculating the access delay via an analytical model. Secondly, we report a comparison of the throughput and delay performance of basic and RTS/CTS mechanisms and the analysis of which mode should be chosen to obtain better throughput and delay performance under different conditions. Finally, we propose an adaptive RTS/CST mechanism that adjusts the RTS threshold adaptively in order to achieve optimal performance in a centralized or distributed way. Numerical results, and simulation results obtained using NS2 are provided.
Keywords :
Analytical models; Collision avoidance; Computer science; Delay; Multiaccess communication; Numerical simulation; Performance analysis; Space stations; Throughput; Wireless LAN;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2004 IEEE International Conference on
Conference_Location :
Paris, France
Print_ISBN :
0-7803-8533-0
Type :
conf
DOI :
10.1109/ICC.2004.1312477
Filename :
1312477
Link To Document :
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