User-Centric Beam Selection and Precoding Design for Coordinated Multiple-Satellite Systems

no code implementations • 13 Mar 2024 • Vu Nguyen Ha, Duy H. N. Nguyen, Juan C. -M. Duncan, Jorge L. Gonzalez-Rios, Juan A. Vasquez, Geoffrey Eappen, Luis M. Garces-Socarras, Rakesh Palisetty, Symeon Chatzinotas, Bjorn Ottersten

This paper introduces a joint optimization framework for user-centric beam selection and linear precoding (LP) design in a coordinated multiple-satellite (CoMSat) system, employing a Digital-Fourier-Transform-based (DFT) beamforming (BF) technique.

Harnessing the Power of Swarm Satellite Networks with Wideband Distributed Beamforming

no code implementations • 10 Jul 2023 • Juan Carlos Merlano Duncan, Vu Nguyen Ha, Jevgenij Krivochiza, Rakesh Palisetty, Geoffrey Eappen, Juan Andres Vasquez, Wallace Alves Martins, Symeon Chatzinotas, Björn Ottersten

The space communications industry is challenged to develop a technology that can deliver broadband services to user terminals equipped with miniature antennas, such as handheld devices.

Joint Linear Precoding and DFT Beamforming Design for Massive MIMO Satellite Communication

no code implementations • 16 Nov 2022 • Vu Nguyen Ha, Zaid Abdullah, Geoffrey Eappen, Juan Carlos Merlano Duncan, Rakesh Palisetty, Jorge Luis Gonzalez Rios, Wallace Alves Martins, Hong-Fu Chou, Juan Andres Vasquez, Luis Manuel Garces-Socarras, Haythem Chaker, Symeon Chatzinotas

This paper jointly designs linear precoding (LP) and codebook-based beamforming implemented in a satellite with massive multiple-input multiple-output (mMIMO) antenna technology.

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