Sorry, you need to enable JavaScript to visit this website.

Rate-Splitting for Multi-group Multicast Beamforming in Multicarrier Systems

Citation Author(s):
Hongzhi Chen, De Mi, Zheng Chu, Pei Xiao, Rahim Tafazolli
Submitted by:
De Mi
Last updated:
20 June 2018 - 10:01am
Document Type:
Document Year:
De Mi

In this work, we consider multi-group multicast transmissions with different types of service messages in an overloaded multicarrier system, where the number of transmitter antennas is insufficient to mitigate all inter-group interference. We show that employing a rate-splitting based multiuser beamforming approach enables a simultaneous delivery of the multiple service messages over the same time-frequency resources in a non-orthogonal fashion. Such an approach, taking into account transmission power constraints which are inevitable in practice, outperforms classic beamforming methods as well as current standardized multicast technologies, in terms of both spectrum efficiency and the flexibility of radio resource allocation.

0 users have voted: