Simulation and Analysis of Multicast Scheme in UMTS Network

Abstract

The mobile communication industry is renowned for its technical innovation,rapidgrowth and tantalizing promises. In contrast to the dramatic downterm in the generalcommunications market, the mobile sector has continued to grow and evolve.UMTS(Universal Mobile Telecommunications System) is a family of third generation mobilenetworks designed to oer high bandwidth radio access. UMTS has been specied asan integrated solution for mobile voice and data with wide area coverage.This report work addresses the analysis and the improvement of the multicastmechanisms in MBMS (Multimedia Broadcast/Multicast Service) through the ex-ploitation of high levels of Radio Resource Management. MBMS is a solution fortransferring video and audio clips, although real streaming is also possible via thesystem. Multicast is an ecient method of supporting group communication as itallows the transmission of packets to multiple destinations using fewer network re-sources. Even if UMTS has not been designed for supporting multicast mechanisms,(MBMS) framework of UMTS supports multicast mechanism.The most important part of this report is the multicast scheme, here the mul-ticast routing mechanism with the multicast group management is descibed. Thecritical parameters for the evaluation of the scheme are the number of users withinthe multicast group, the amount of data sent to the multicast users, the density ofthe multicast users within the cells and nally the type of transport channel used forthe transmission of the multicast data over the air. In this thesis, the performance ofmulticast scheme is analyzed in terms of its performance with respect to number ofmulticast users and number of packets per multicast users.