Reference : Precoding Design and User Selection for Multibeam Satellite Channels
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/10993/21060
Precoding Design and User Selection for Multibeam Satellite Channels
English
Gharanjik, Ahmad mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Shankar, Bhavani mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Arapoglou, Pantelis-Daniel mailto [Ajilon for ESA - European Space Agency > ESTEC > Communications System Engineer]
Bengtsson, Mats mailto [KTH Royal Institute of Technology > School of Electrical Engineering > Associate Professor]
Ottersten, Björn mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
28-Jun-2015
16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015
Yes
No
International
16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015
28-6-2015 to 1-7-2015
IEEE
Stockholm
Sweden
[en] Precoding Design ; User Selection ; Multibeam Satellite
[en] Precoding for the downlink of a multibeam satellite system has been recently shown, under ideal conditions, to be promising technique towards employing aggressive frequency reuse gainfully. However, time varying phase uncertainties imposed by the components and the channel, combined with delayed feedback perturbs the channel state information at the transmitter (CSIT). In this paper, we consider a power constrained robust formulation of the downlink precoding problem to counter the phase uncertainties. In particular it considers imposing conditions on the average signal to interference plus noise ratio (SINR), to deal with imperfect CSIT. In addition to the robust formulation, the primacy of user selection is highlighted and a new approach exploiting the satellite system design is proposed. Performance of the derived robust precoder in conjunction with the proposed location based user selection is then evaluated and the gains are tabulated.
Fonds National de la Recherche - FnR
Researchers ; Professionals ; Students ; General public ; Others
http://hdl.handle.net/10993/21060

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