Resource-hungry services that will be supported by the next-to-come sixth-generation (6G) systems, such as extended reality (XR) and other immersive applications, call for the design of efficient radio resource management strategies. Multicasting plays a crucial role in efficiently exploiting radio resources by serving users interested in the same content through a single transmission. However, multicast performance can be severely degraded by cell-edge users. The search for alternative methods of delivery of services for these users is of primary importance. Among the available 6G technologies, the exploitation of reconfigurable intelligent surfaces (RISs) or device-to-device (D2D) communications may constitute viable solutions for service delivery to users in poor channel conditions. This paper presents a performance comparison between two alternative options for enhancing multicasting performance: RIS-aided and D2D-aided. Moreover, the effectiveness of implementing the two solutions in different transmission modes, namely, unicast and multicast, is evaluated. The simulation results highlight that there is no clear winning technology, as the performance is strongly dependent on the scenario settings.
Exploiting RIS or D2D for Enhancing Multicasting: A Performance Comparison / Suraci, C., Brancati, G., Pizzi, S., Molinaro, A., Araniti, G.. - (2025), pp. 1-6. (20th IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB 2025 Faculty of Engineering and Computing, Dublin City University, irl 2025) [10.1109/bmsb65076.2025.11165732].
Exploiting RIS or D2D for Enhancing Multicasting: A Performance Comparison
Suraci, Chiara;Brancati, Gianluca;Pizzi, Sara;Molinaro, Antonella;Araniti, Giuseppe
2025-01-01
Abstract
Resource-hungry services that will be supported by the next-to-come sixth-generation (6G) systems, such as extended reality (XR) and other immersive applications, call for the design of efficient radio resource management strategies. Multicasting plays a crucial role in efficiently exploiting radio resources by serving users interested in the same content through a single transmission. However, multicast performance can be severely degraded by cell-edge users. The search for alternative methods of delivery of services for these users is of primary importance. Among the available 6G technologies, the exploitation of reconfigurable intelligent surfaces (RISs) or device-to-device (D2D) communications may constitute viable solutions for service delivery to users in poor channel conditions. This paper presents a performance comparison between two alternative options for enhancing multicasting performance: RIS-aided and D2D-aided. Moreover, the effectiveness of implementing the two solutions in different transmission modes, namely, unicast and multicast, is evaluated. The simulation results highlight that there is no clear winning technology, as the performance is strongly dependent on the scenario settings.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
