Principles of wireless networks

• Introduction to wireless networks.
• Fixed networks vs Wireless networks. Different generations.
• WPAN, WLAN, WMAN, WRAN networks.
• Caracteristics and theoretical performances.
• Handover and integration of the different solutions.
• Wireless networks for businesses.
• Troughputs needed. Available applications. Home, Office and Business networks.
• ISP Wi-Fi « Hot spots ».
• Wi-Fi. Advantages of wireless technologies.
• The Wi-Fi issues for ISPs.
• Handovers.
• Mobility issues. Different types of handovers.
• Integration within mobile networks.

Bluetooth, UWB, ZigBee and IEEE 802.15 networks.

• The IEEE 802.15 standard, the UWB, ZigBee and Bluetooth technologies.
• The 802.15.1 standard and bluetooth.
• IEEE 802.15.3. Very high trhoughput technology UWB.
• Wimedia consortium and WUSB.
• IEEE 802.15.4 and ZigBee products.
• Personal networks technologies.

Personal networks technologies

• WiFi (IEEE 802.11b/g).
• A massive success. Specifications.
• Wi-Fi devices : cards and access points.
• MAC layer : CSMA/CA. Frequency bands.
• Ethernet integration. Trhoughputs and performances.
• Medium Access technologies.
• Quality of Service and IEEE 802.11e.
• Voice encoding and audio « streams ».
• Wireless controlers and switches.
• Wi-Fi engineering and managment.
• Future of IEEE 802.11b with 802.11n and MIMO.
• Deployment of a Wi-Fi network.
• Constraints. Devices. Cost. Configuration.

Mesh-networks and ad-hoc networks

• Definition of a mesh-network and ad-hoc network.
• Mesh-networks routing.
• Different routing protocols : pro-actives (OLSR, DSDV) and reactives (AODV, DSR).
• Security and QoS in ad-hoc networks.

IEEE 802.16 standard and IEEE 802.16 standard

• Definition of the Wireless Local Lopp and WDSL access (Wireless DSL).
• WDSL vs fixed networks.
• Technologies and frequencies available.
• WiMAX. Theoretical performances.
• IEEE 802.16 standard. Mobile WiMAX.

The other solutions

• The new genration of regional wireless networks.
• Usage of the UHF/VHF bands and IEEE 802.22.
• Cognitive radio. Interactive radio.
• A unified network with wireless networks.
• IEEE 802.21 and the vertical handover.
• Continuity of service and a wireless Internet.

Protocols and applications of wireless networks

• The IP environment. The slow-start and buffer-bloat issues.
• MIMO technologies and the increase of the trhoughput.
• Home networks : UPnP and DLNA.
• Applications : voice, production, P2P...
• Pervasive Internet
• Developments. Internet city. Integration with the new IP generation.
• Sensors networks. Dust networks.

3G vs WLAN

• 3GPP/3GPP2 vs Wi-xx.
• Comparison with UMTS.
• Fourth generation of mobile networks and UMA/IMS integration.

Wi-Fi security

• Weaknesses by design of wireless networks.
• Protection against Denial of Service possible ? How to control the radio coverage ?
• SSID and security issue.
• Attacks : Man-in-the-middle, ARP spoofing.
• Weaknesses of the authentication solutions.
• Elementary techniques based on SSID and MAC filtering.
• Interests and limits. Risks of the beacon frame usage and ssid probe request.
• Example of attacks : SSID brute forcing....
• Wired Equivalent Privacy – WEP
• Features. Key exchange. Authentication and encryption. Popular attacks. Demonstrations.
• WiFi Protected Access – WPA. Features. Advantages of WPA over WEP.
• Extensible Authentication Protocol – EAP. Temporal Key Integrity Protocol – TKIP.
• Message Integrity Check – MIC. WPA v2 and the 802.11i standard.

ILAN and WAN interconnexion

• Radio coverage control.
• Network separaton.
• Firewall and DMZ.
• End-user device protection.
• Mobile users, VPN and wireless networks.