Abstract:
This research is aimed to explore innovative solutions to network inter-connectivity and wireless resource management, so as to allow efficient and transparent services to multimedia users across heterogeneous networking platforms. This project, in particular, will focus on the integration of UMTS system and WiMax. A mobility and resource adaptation frame work based on Mobile IPv6 and its enhancements will be developed to glue together the different radio networks to provide pervasive access to the Internet in the near future. In this project a simulations based approach has been adopted to determine the total cell throughput by implementing different traffic models (CBR, FTP, and VOIP) for different number of users on both Wimax and UMTS networks. Also in UMTS network the performance of HSDPA is evaluated with both round robin scheduling and best channel first scheduling. Simulation results show that under ideal condition high cell throughput is obtained by round robin scheduling. In WiMax throughput performance of different modulation schemes and same modulation schemes with different channel coding is determined. Simulations results show that throughput performance is higher for higher channel coding. In the end a simple simulations scenario is carried out on integrated model in which UMTS and WiMax networks are integrated in which vertical handover is triggered by the speed of the user who is moving from one network to the other. Simulation results shows that vertical handover is triggered quickly when user is moving fast and traffic flow is seamlessly switched to the other network.
