01694nas a2200181   4500008004100000245009700041210006900138260002100207300001300228520102600241653000901267653000901276100002101285700002201306700002401328700002201352856013801374       2010                        eng d00aThe Multimedia Broadcast/Multicast Service of the Universal Mobile Telecommunications System0 aMultimedia BroadcastMulticast Service of the Universal Mobile Te  bWorld Scientific  a 43 - 783 a<p>The Universal Mobile Telecommunications System (UMTS) constitutes the premier third generation (3G) wireless technology that is dominating the global market. Multicasting is an efficient method of supporting group communication as it allows the transmission of packets to multiple destinations, using fewer network resources. The need for broadcasting and multicasting in UMTS led to the definition of the Multimedia Broadcast/Multicast Service (MBMS) framework, which targets the efficient utilization of radio and network resources of the UMTS network. This chapter introduces the key concepts of UMTS and in particular the MBMS framework of UMTS. Moreover, it investigates the power profiles of several transport channels (common and dedicated) which could be employed for the transmission of MBMS services to mobile users. Problems regarding the high power requirements for the realization of MBMS are also presented. The reader will become familiar with these problems and the proposed techniques/solutions.</p>
10aMBMS10aUMTS1 aBouras, Christos1 aAlexiou, Antonios1 aKokkinos, Vasileios1 aRekkas, Evangelos  uhttp://telematics.upatras.gr/telematics/publications/multimedia-broadcastmulticast-service-universal-mobile-telecommunications-system