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Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite Communications
Bandi, Ashok; Shankar, Bhavani; Chatzinotas, Symeon et al.
2019In Bandi, Ashok; Shankar, Bhavani; Chatzinotas, Symeon et al. (Eds.) Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite Communications
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Keywords :
Multigroup; mulitcast; Satellite system
Abstract :
[en] Recent satellite standards enforce the coding of multiple users’ data in a frame. This transmission strategy mimics the well-known physical layer multigroup multicasting (MGMC). However, typical beam coverage with a large number of users and limited frame length lead to the scheduling of only a few users. Moreover, in emerging aggressive frequency reuse systems, scheduling is coupled with precoding. This is addressed in this work, through the joint design of scheduling and precoding for frame-based MGMC satellite systems. This aim is formulated as the maximization of the sum-rate under per beam power constraint and minimum SINR requirement of scheduled users. Further, a framework is proposed to transform the non-smooth SR objective with integer scheduling and nonconvex SINR constraints as a difference-of-convex problem that facilitates the joint update of scheduling and precoding. Therein, an efficient convex-concave procedure based algorithm is proposed. Finally, the gains (up to 50%) obtained by the jointed design over state-of-the-art methods is shown through Monte-Carlo simulations.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Disciplines :
Electrical & electronics engineering
Author, co-author :
Bandi, Ashok ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Shankar, Bhavani  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Chatzinotas, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Ottersten, Björn ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
no
Language :
English
Title :
Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite Communications
Alternative titles :
[en] Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite Communications
Publication date :
09 December 2019
Event name :
2019 IEEE Global communication conference
Event organizer :
IEEE
Event place :
Hawaii, USA, United States
Event date :
Dec 9-13, 2019
By request :
Yes
Audience :
International
Main work title :
Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite Communications
Main work alternative title :
[en] Joint Scheduling and Precoding for Frame-Based Multigroup Multicasting in Satellite Communications
Publisher :
IEEE, Waikoloa, United States - Hawaii
Peer reviewed :
Peer reviewed
Focus Area :
Security, Reliability and Trust
FnR Project :
FNR11504382 - On-board Processing Techniques For High Throughput Satellites, 2016 (01/05/2017-31/07/2020) - Bjorn Ottersten
Name of the research project :
PROSAT
Funders :
FNR - Fonds National de la Recherche [LU]
Available on ORBilu :
since 22 July 2019

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