Performance Management of 802'11 WLANs

1
Performance Management of 802.11 WLANs

• Simulation of WLAN Manager (WM)
• Fairness issues related to multi-rate WLAN
  environment
• Policy based Service differentiation
• Call Admission Control for voice calls
• Integrated simulation/emulation framework for WM

2
WLAN Manager (WM)

• Build a prototype of WLAN Manager (WM)
• Centralized WLAN management solution
• Follows Split MAC Architecture
• (RFC 4118 Architecture taxonomy for CAPWAP)
• Enhances the quality of service (QoS) in an
  802.11b/e based WLAN

Based on the paper to be published in Special
Issue of International Journal of Network
Management on Wireless and Mobile Network
Management research In Asia, 2007
3
WM Performance Objectives

• Fair sharing of the wireless channel time among
  STAs while maximizing channel utilization in an
  Multi-rate WLAN Environment
• Connection admission control (CAC) for voice
  calls
• Policy based service differentiation among the
  flows within one 802.11e AC
• Maintain performance levels during inter-AP
  roaming of STAs.

4
WM Deployment Scenario
 
 
 
AP
Internet
Access Router
WM
Ethernet LAN
802.11 WLAN