A performance Study of the IEE 802.11g PHYand MAC Layers over Heterogeneous and Homogeneous WLANs

Abstract

WIRELESS LOCAL AREA NETWORKS (WLANS) BASED ON THE 802.11 STANDARD ARE BE INGDEPLOYED 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 AP PROVED 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 MACLAYERS. THE 802.11G IS DEFINED TO OPERATE IN THE 2.4 GHZ BAND AND IT WAS DE SIGNED TO PRESERVE BACKWARD COMPATIBIL ITY WITH THE 802.11B STAN DARD. HENCE IT IS IMPORTANT TO PRESENT A STUDY RELATED TO THE PERFORMANCE OF THE MAC AND THE PHY OPERATIONAL MODES IN 802.11G, IN C