Quality of service and mobility support in WiMAX Networks

Resumo

This paper presents the enhancement of the IEEE 802.16 Broadband Wireless Access (BWA) technology with automate Quality of Service (QoS) and resources management integration attending to the inherent requirements of Next Generation Networks. A novel IEEE 802.16 based architecture is presented, focused on a new designed and implemented model named 802.16 System Manager. The later is responsible to fetch information from the WiMAX network elements in order to accomplish important control functions, such as admission control, effective resources control, load balancing, and enforcing the control decisions in the hardware. It is also depicted in this document how the 802.16 System Manager can be integrated in heterogeneous environments regarding QoS and mobility support. The work was developed concerning the needs to efficiently utilize the resources at the data link level. Hence, performance tests were performed for the two distinct modes of operation, point-to-point and point-to-multipoint, proving at the same time the stability and efficiency of the management application.