Paper Info
Title
Sum Rate Maximization for Frame-Based Multigateway Satellite Systems with Feeder Link Interference
Abstract
This paper studies the multicast precoding problem in frame-based multigateway multibeam satellite communications with feeder link interference. We formulate a sum rate maximization problem that incorporates the minimum signal-to-interference-and-noise-ratio (SINR) requirement for each user, the sum power constraint at each gateway as well as the per feed power constraints at the satellite. We propose two algorithms to solve the formulated problem. In the first algorithm, by employing the successive convex approximation (SCA) approach, we iteratively approximate the original nonconvex problem to a second-order cone program (SOCP) which can be solved by modern solvers efficiently. For the second, we propose a modified joint power control and beamforming algorithm which computes QoS beamforming and geometric programming (GP) based power allocation iteratively. Compared to the traditional method [5] which uses a subgradient and projection based approach for the power control, the GP based solution is more implementation friendly and practical appealing which also achieves a slightly better sum rate performance. Finally, numerical results are presented to validate the efficiency of the proposed schemes.
Year
DOI
Venue
2019
10.1109/ICC.2019.8761607
ICC 2019 - 2019 IEEE International Conference on Communications (ICC)
Keywords
Field
DocType
GP based solution,projection based approach,beamforming algorithm,modified joint power control,second-order cone program,original nonconvex problem,successive convex approximation approach,feed power constraints,sum power constraint,minimum signal-to-interference,sum rate maximization problem,frame-based multigateway multibeam satellite communications,multicast precoding problem,feeder link interference,frame-based multigateway satellite systems
Beamforming,Mathematical optimization,Subgradient method,Computer science,Power control,Real-time computing,Interference (wave propagation),Multicast,Geometric programming,Maximization,Precoding
Conference
ISSN
ISBN
Citations 
1550-3607
978-1-5386-8089-6
0
PageRank 
References 
Authors
0.34
13
4
Name
Order
Citations
PageRank
Ji Wang142.42
Xiaodong Wang23958310.41
Zhao Chen37625.75
YingZhuang Liu449336.77