A quality of service architecture for WLAN-wired networks to enhance multimedia support

The use of WLAN for the provision of IP multimedia services faces a number of challenges which include quality of service (QoS). Because WLAN users access multimedia services usually over a wired backbone, attention must be paid to QoS over the integrated WLAN-wired network. This research focuses on the provision of QoS to WLAN users accessing multimedia services over a wired backbone. In this thesis, the IEEE 802.11-2007 enhanced data channel access (EDCA) mechanism is used to provide prioritized QoS on the WLAN media access control (MAC) layer, while weighted round robin (WRR) queue scheduling is used to provide prioritized QoS at the IP layer. The inter-working of the EDCA scheme in the WLAN and the WRR scheduling scheme in the wired network provides end-to-end QoS on a WLAN-wired IP network. A mapping module is introduced to enable the inter-working of the EDCA and WRR mechanisms.

Grantor dc:publisher.institution

Department of Electrical Engineering

Year dc:date.issued

2008

Author dc:creator

• Senkindu, Samuel

Advisor dc:contributor.advisor

• Chan, H Anthony

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/5106

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/5106