Performance studies of MPLS based integrated architecture for 3G-WLAN scenarios with QoS provisioning

Recently, the growing need of telecommunications such as Video-Conference, Voice over IP etc. and for the diversity of transported flows, Internet network does not meet the requirements of future integrated services satisfying Quality-of-Services (QoS). This is become much more complex for heterogeneous networks especially for wireless networks. In this paper, we propose an MPLS based integrated architecture between 3G(UMTS)/WLAN networks. We present the performance analysis of this MPLS enabled 3G-WLAN integrated framework for better QoS, throughput, less switching delay and less packet loss with the aim to fulfill the future demand of wireless communication. The mobility of the integrated framework is managed using hierarchical MIPv6 (HMIPv6). Integration point is considered at the MAP (Mobility Anchor Point) to restrict global update. Extensive simulation is done on mns-2.0 to evaluate the network performance in terms of packet forwarding, throughput and delay. tor traffic engineering in the MPLS domain, CRLDP is used.