2026-05-30T08:44:44Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/229252026-02-03T11:06:13Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Jiménez-Soria, David author Martín-Vega, Francisco-Javier author Aguayo-Torres, María del Carmen author 2021-09-16 Linear broadcasting services, with a scheduled programming, constitute a paramount tel-ecommunication service for today’s society. Although the existing technology is mature, current linear broadcast systems have serious limitations when providing service to moving users or users placed in areas with complex orography and poor signal quality. To over-come these limitations, 3GPP 5G standard has included a work item to support 5G mul-ticast/broadcast services for future Release 17. This paper investigates the integration of point-to-point (unicast) communication with cellular multicast/broadcast on 5G technology to extend the current support of linear broadcasting services. This integration relies on the use mobile edge computing (MEC) at the 5G base station (gNB) to host a dynamic adap-tive streaming over HTTP (DASH) server that is coordinated with the multicast transmis-sion to complement the broadcast service. This approach join the reliability of point-to-point communications, with dedicated resources for each user, with the spectrum efficiency of multi-cast communications, where a set of users share common resources. The coopera-tion between those unicast and multicast schemes allows those users whose coverage is not good enough, to complete the linear broadcast flow through the point-to-point transmission via MEC. The benefits of such approach have been assessed with simulations in a realistic scenario that considers a vehicle moving across a sparsely populated region in southern Spain. Results reveals that throughput and bitrate playback (reproduction rate) are greatly improved when unicast/multicast integration is enabled since the number of stalling events is reduced significantly. Jiménez-Soria, D., Martín-Vega, F.J. & Aguayo-Torres, M.C. Coordinated Multicast/Unicast Transmission on 5G: A Novel Approach for Linear Broadcasting. Wireless Pers Commun (2021). https://doi.org/10.1007/s11277-021-09057-z https://hdl.handle.net/10630/22925 0.1007/s11277-021-09057-z Sistemas de comunicaciones móviles Redes inalámbricas Coordinated Multicast/Unicast Transmission on 5G: A Novel Approach for Linear Broadcasting