Title :
An analysis of the backoff mechanism used in IEEE 802.11 networks
Author :
Natkaniec, Marek ; Pach, Andrzej R.
Author_Institution :
Dept. of Telecommun., Univ. of Min. & Metall., Cracow, Poland
Abstract :
This paper presents a simulation analysis of the backoff mechanism presented in the IEEE 802.11 standard. The obtained simulations allow us to determine the effective throughput and the mean packet delay versus offered load for different values of the contention window parameter and the number of contending stations. The choice of the CWmin and CWmax parameters was analyzed. In particular, the choice of CWmin value in dependence of the number of transmitting stations was presented. The simulation results show that the proper choice of the CW parameters has a substantial influence on the network performance
Keywords :
IEEE standards; access protocols; code division multiple access; delays; digital simulation; packet radio networks; telecommunication standards; wireless LAN; CSMA/CD; IEEE 802.11 networks; IEEE 802.11 standard; WLAN; backoff mechanism analysis; contending stations; contention window parameter; mean packet delay; media access protocols; network performance; offered load; simulation results; simulations; throughput; wireless local area networks; Access protocols; Analytical models; Computational modeling; Delay; Intelligent networks; Media Access Protocol; Multiaccess communication; Physical layer; Spread spectrum communication; Throughput;
Conference_Titel :
Computers and Communications, 2000. Proceedings. ISCC 2000. Fifth IEEE Symposium on
Conference_Location :
Antibes-Juan les Pins
Print_ISBN :
0-7695-0722-0
DOI :
10.1109/ISCC.2000.860678
