Technology - Wireless - Broadband 6 - 802-11 Applications & VoWLAN

Synopsis

This report discusses 802.11 hardware and both distributed and centralised architecture for WLANs. 802.11’s use in hotspots, roaming to other services and for Wireless ISPs are also discussed. We also review 802.11n, r and e and the key difficulties in achieving high quality Voice over Internet Protocol over WLAN (VoWLAN).

Table of Contents

• 1. Synopsis
  
• 2. Equipment
  
  • 2.1 Access points and NICs
    
  • 2.2 Infrastructure and ad-hoc modes
    
    • 2.2.1 Wireless Distribution System
      
• 3. Centralised or distributed WLAN architecture
  
  • 3.1 Traffic routing
    
  • 3.2 Security
    
• 4. WiFi hotspots
  
• 5. Roaming to other services
  
• 6. Last-mile wireless
  
• 7. Voice over IP for Wireless LANs (VoWLANs)
  
  • 7.1 DECT as an alternative to VoWLAN
    
  • 7.2 Security
    
  • 7.3 WLAN performance
    
    • 7.3.1 Data rates, latency and jitter
      
    • 7.3.2 802.11n in handsets
      
    • 7.3.3 Voice quality and reliability
      
    • 7.3.4 Access point density and frequency allocation
      
    • 7.3.5 Handoff delays and reliability
      
    • 7.3.6 802.11r
      
    • 7.3.7 802.11e and WMM QoS
      
  • 7.4 WAN considerations
    
  • 7.5 VoIP architecture
    
  • 7.6 Security
    
• 8. Related reports
  
  • 8.1 Market reports
    
  • 8.2 Technology reports