01577nas a2200169   4500008004100000245005400041210005100095300001400146490000700160520104500167653000901212653000901221100002101230700002201251700002201273856011201295       2010                        eng d00aAn Efficient Mechanism for UMTS Multicast Routing0 aEfficient Mechanism for UMTS Multicast Routing  a802 - 8150 v153 a<p>In this paper, we present a novel scheme for the multicast transmission of data over Universal Mobile Telecommunications System (UMTS) networks. Apart from the normal multicast transmission over UMTS, we consider the handling of exceptional cases caused by user mobility scenarios. The proposed scheme is in accordance with the current specifications of the Multimedia Multicast/ Broadcast Service (MBMS) defined by the 3rd Generation Partnership Project (3GPP) and introduces minor modifications in the UMTS architecture and the mobility management mechanisms. The proposed scheme is implemented as an ns-2 network simulator module. The performance of the proposed scheme is validated and analyzed through ns-2 simulation experiments. This new module can be employed to investigate various aspects of UMTS multicast. Furthermore, in order to further highlight the contribution of our mechanism, we have implemented two multicast congestion control mechanisms for UMTS and we have measured their performance for MBMS transmissions.</p>
10aMBMS10aUMTS1 aBouras, Christos1 aAlexiou, Antonios1 aPapazois, Andreas  uhttp://telematics.upatras.gr/telematics/publications/efficient-mechanism-umts-multicast-routing?language=en