01691nas a2200157   4500008004100000245007900041210006900120490000700189520108500196100002101281700002201302700002401324700002701348700002801375856013001403       2018                        eng d00aMCS Selection Exploiting Femtocells Utilization in Multicast Transmissions0 aMCS Selection Exploiting Femtocells Utilization in Multicast Tra0 v313 aMulticast-Broadcast over Single Frequency Network (MBSFN) technology, as introduced by the Long Term Evolution Advanced (LTE-A) group, is expected to be part of the upcoming cellular systems offering resource efficiency to broadcast services. MBSFN transmission is suitable to serve multicast groups searching the same content. In addition, the fast emerging technology of femtocells networks and their hybrid nature can lead to efficient resource sharing between non-subscribed users when located inside their coverage. The focus of this manuscript is twofold; firstly, we have contacted simulation experiments to compare the MBSFN transmission with the traditional PTP transmission for various femtocell distributions and network topology changes; secondly, a novel multicast transmissions mechanism is proposed from non-subscribed users who exploit femtocells resources for broadcast services, without limiting user’s data requirements. The simulation results lead to a significant system’s performance in terms of average throughput, total capacity and energy consumption.1 aBouras, Christos1 aKanakis, Nikolaos1 aKokkinos, Vasileios1 aPapachristos, Nikolaos1 aVouyioukas, Demosthenes  uhttps://telematics.upatras.gr/telematics/publications/mcs-selection-exploiting-femtocells-utilization-multicast-transmissions01410nas a2200169   4500008004100000245009200041210006900133260002100202300001200223520074900235100002100984700001901005700002401024700002701048700002801075856013701103       2016                        eng d00aComparison of Point to Point and MBSFN transmissions in Next Generation Mobile Networks0 aComparison of Point to Point and MBSFN transmissions in Next Gen  cNovember 13 - 17  a169-1723 a<p class="rtejustify">Multicast/Broadcast Multicast Service over Single Frequency Network (MBSFN) technology has introduced advanced broadcast capabilities to cellular systems. In Long Term Evolution Advanced (LTE-A) systems, MBSFN transmission accommodates multicast groups in search of the same data. In this paper we compare the traditional Point-to-Point (PTP) communication with the MBSFN services through simulation experiments for various femtocell distributions and network configurations. The comparison takes into account the average throughput, overhead cost, energy consumption and capacity gain, concluding that MBSFN through multicast transmission may guarantee performance improvement even for users in the cell boundaries.</p>
1 aBouras, Christos1 aKanakis, Nikos1 aKokkinos, Vasileios1 aPapachristos, Nikolaos1 aVouyioukas, Demosthenes  uhttps://telematics.upatras.gr/telematics/publications/comparison-point-point-and-mbsfn-transmissions-next-generation-mobile-networks01724nas a2200169   4500008004100000245009400041210006900135260001700204300001200221520105700233100002101290700002201311700002401333700002701357700002801384856014201412       2016                        eng d00aUtilization of Hybrid Access Femtocells During Multicast Transmissions in Mobile Networks0 aUtilization of Hybrid Access Femtocells During Multicast Transmi  cJune 27 - 30  a190-1943 a<p class="rtejustify">Femtocells enhance indoor coverage of mobile services using the owner’s broadband connection. They were initially designed to serve a number of subscribed User Equipments within their range. This design however, resulted in underutilization of the femtocells resources, and simultaneously in high interference levels for nearby non-subscribed users. Nowadays, femtocells can support multicast transmissions, while their hybrid operation allows non-subscribed users to use a portion of their resources. In this paper we propose a novel mechanism that is based on the selection of the appropriate Modulation and Coding Scheme. The mechanism allows non-subscribed users to utilize a portion of the femtocells’ resources for multicast transmissions when located inside their coverage, without affecting the owners’ satisfaction. The simulation results show that depending on the portion of the femtocells’ resources allocated to non-subscribed users, the mechanism may significantly increase the average user throughput.</p>
1 aBouras, Christos1 aKanakis, Nikolaos1 aKokkinos, Vasileios1 aPapachristos, Nikolaos1 aVouyioukas, Demosthenes  uhttps://telematics.upatras.gr/telematics/publications/utilization-hybrid-access-femtocells-during-multicast-transmissions-mobile-networks