TY - GEN
T1 - Rate-Splitting for Multigroup Multicast Beamforming in Multicarrier Systems
AU - Chen, Hongzhi
AU - Mi, De
AU - Chu, Zheng
AU - Xiao, Pei
AU - Tafazolli, Rahim
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/8/24
Y1 - 2018/8/24
N2 - In this paper, we consider multigroup 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.
AB - In this paper, we consider multigroup 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.
UR - http://www.scopus.com/inward/record.url?scp=85053437164&partnerID=8YFLogxK
U2 - 10.1109/SPAWC.2018.8445911
DO - 10.1109/SPAWC.2018.8445911
M3 - Conference contribution
AN - SCOPUS:85053437164
SN - 9781538635124
T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
BT - 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2018
Y2 - 25 June 2018 through 28 June 2018
ER -