RT Journal Article
T1 Coordinated Multicast/Unicast Transmission on 5G: A Novel Approach for Linear Broadcasting
A1 Jiménez-Soria, David
A1 Martín-Vega, Francisco-Javier
A1 Aguayo-Torres, María del Carmen
K1 Sistemas de comunicaciones móviles
K1 Redes inalámbricas
AB 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.
PB Springer
YR 2021
FD 2021-09-16
LK https://hdl.handle.net/10630/22925
UL https://hdl.handle.net/10630/22925
LA eng
NO 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
NO This work has been partially supported by Radio Televisión Española through Impulsa Visión RTVE grant and by the Universidad de Málaga. We are grateful to Pere Vila, Esteban Mayoral Campos, Adolfo Muñoz Berrón and Miguel Ángel Bona San Vicente for their support and collaboration during the development of the project.Funding for open access charge: Universidad de Málaga / CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 3 mar 2026