Abstract

VILLASENOR-GONZALEZ, L.; PORTILLO-JIMENEZ, C.  and  SANCHEZ-GARCIA, J.. A Performance Study of the IEEE 802.11g PHY and MAC Layers over Heterogeneous and Homogeneous WLANs. Ing. invest. y tecnol. [online]. 2007, vol.8, n.1, pp.45-57. ISSN 2594-0732.

Wireless local area networks (WLANs) based on the 802.11 standard are being deployed with great success in a great variety of home, office and corporate environments. Since the introduction of the 802.11 standard, multiple extensions have been proposed and approved by the IEEE, namely the 802.11a, 802.11b and 802.11g standards. This work is related to the study and performance analysis of the IEEE 802.11g physical (PHY) and MAC layers. The 802.11g is defined to operate in the 2.4 GHz band and it was designed to preserve backward compatibility with the 802.11b standard. Hence it is important to present a study related to the performance of the MAC and the PHY operational modes in 802.11g, including the performance issues related to the PHY operational modes which are designed to be compatible with 802.11b (i.e. Heterogeneous WLANs).

Keywords : 802.11g; MAC Protocol; Performance Analysis; Protection Mechanism; RTS/CTS; WLAN.

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