Reference : Joint User Scheduling, and Precoding for Multicast Spectral Efficiency in Multigroup...
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Electrical & electronics engineering
Security, Reliability and Trust
http://hdl.handle.net/10993/44147
Joint User Scheduling, and Precoding for Multicast Spectral Efficiency in Multigroup Multicast Systems
English
Bandi, Ashok mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Mysore Rama Rao, Bhavani Shankar mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Chatzinotas, Symeon mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Ottersten, Björn mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Jul-2020
International conference on signal processing and communications (SPCOM)
Yes
International
International conference on signal processing and communications
23-26
Bangalore
India
[en] user scheduling, precoding ; multicast spectral efficiency ; multigroup multicast
[en] This paper studies the joint design of user scheduling and precoding for the maximization of spectral efficiency (SE) for a multigroup multicast scenario in multiuser MISO downlink channels. Noticing that the existing definition of SE fails to account for group sizes, a new metric called multicast spectral efficiency (MC-SE) is proposed. In this context, the joint design is considered for the maximization of MC-SE. Firstly, with the help of binary scheduling variables, the joint design problem is formulated as a mixed-integer non-linear programming problem such that it facilitates the joint update of scheduling and precoding variables. Further, useful reformulations are proposed to reveal the hidden difference-of-convex/concave structure of the problem. Thereafter, we propose a convex-concave procedure based iterative algorithm with convergence guarantees to a stationary point. Finally, we compare different aspects namely MC-SE, SE and number of scheduled users through Monte-Carlo simulations.
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Fonds National de la Recherche - FnR
PROSAT
Researchers ; Professionals ; Students
http://hdl.handle.net/10993/44147
FnR ; FNR11504382 > Bjorn Ottersten > PROSAT > On-board processing techniques for high throughput satellites > 01/01/2017 > 31/12/2019 > 2016

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