A study of the effect of mpls on quality of service in wireless lans

The increasing deployment and availability of wireless technology presents unique research challenges, especially in the field of Quality of Service. The IEEE 802.11 wireless Local Area Network standard is the most popular standard currently in use, but is unable to provide Quality of Service guarantees for the growing number of wireless real-time and multimedia applications. Quality of Service provision is made more difficult in a wireless network due to the lossy physical medium and the limited resources available. Also, wired internet protocol Quality of Service mechanisms such as Differentiated Services do not always perform well in a wireless environment. In this study, we evaluate the use of Multi-Protocol Label Switching as a means of adding Quality of Service to a wired backbone with limited bandwidth, connected to a wireless Local Area Network. We compare the performance of Multi-Protocol Label Switching Traffic Engineering with that of Differentiated Services, and show that Multi-Protocol Label Switching Traffic Engineering is able to effectively share the available resources among all traffic types.