End-to-End QoS Mapping Between UMTS and WiMAX in Loose Coupling Heterogeneous Wireless Network

"One of the main objectives of Heterogeneous Wireless Access Networks (HWANs) is to integrate the different wireless access technologies, such as UMTS, WiMAX and WLAN, with a common IP-based network in order to offer mobile users continuous and unified service in a transparent way. However, one of the major issues is to support end-to-end QoS across all these technologies at all stages of the service from set-up to handoff. The authors present, in this paper, a novel method of mapping QoS of UMTS and WiMAX over a loose coupling environment across IP/DiffServ network."