Non-convex consensus ADMM for satellite precoder design
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
Owing to the rapidly increasing traffic demands on satellite connectivity, the current exclusive frequency allocation is becoming obsolete. Instead, aggressive frequency reuse and interference mitigation techniques are promising ideas that both industry and academia are investigating. This paper proposes an optimization precoding technique for dealing with the multibeam interference due to the aggressive frequency reuse. In contrast to general multiuser multiple input multiple output (MIMO) schemes, multibeam satellite precoding techniques call for frame-by-frame quadratically constrained quadratic optimization of a large number of variables. We focus on the multigroup multicast beamforming optimization problem, and we propose to adopt a consensus-based alternating direction method of multipliers (C-ADMM) approach, in order to mitigate complexity. The proposed C-ADMM approach is shown to exhibit comparable optimization performance at considerably lower complexity relative to the prior state-of-art for the formulation considered.
CitationVazquez, M., Konar, A., Blanco, L., Sidiropoulos, N., Perez, A. Non-convex consensus ADMM for satellite precoder design. A: IEEE International Conference on Acoustics, Speech, and Signal Processing. "2017 IEEE International Conference on Acoustics, Speech, and Signal Processing: proceedings". New Orleans: Institute of Electrical and Electronics Engineers (IEEE), 2017, p. 6279-6283.
|NON-CONVEX CONS ... ELLITE PRECODER DESIGN.pdf||222,3Kb||Restricted access|