Analysis of User Plane in IEEE 802.11b/g QoS Networks

Abstract

In this paper we present the performances evaluation of infrastructure 802.11b/g QoS networks, in both HCF (Hybrid Coordination Function) operating modes: EDCA (Enhanced Distributed Channel Access) and HCCA (HCF Controlled Channel Access). Besides comparing these two modes in terms of total network throughput (between themselves as well as against the theoretical limit), in this paper we introduce further analyses: impact of modulation scheme on the total throughput, determination of throughput for different traffic categories and average packet delivery delay.

Keywords

• EDCA
• HCCA
• HCF
• MAC layer
• QoS
• WLAN