We study the achievable rates by a single user in multibeam satellite scenarios. We show alternatives to the conventional symbol-by-symbol detection applied at user terminals. Single user detection is known to suffer from strong degradation when the terminal is located near the edge of the coverage area, and when aggressive frequency reuse is adopted. For this reason, we consider multiuser detection, and take into account the strongest interfering signal. Moreover, we analyze a different transmission strategy, where the signals from two adjacent beams jointly serve two users in a time division multiplexing fashion. We describe an information-theoretic framework to compare different transmission/detection strategies by computing the information rate of the user in the reference beam.
On the application of multiuser detection in multibeam satellite systems / Colavolpe, Giulio; Modenini, Andrea; Piemontese, Amina; Ugolini, Alessandro. - STAMPA. - 2015-:(2015), pp. 898-902. (Intervento presentato al convegno IEEE International Conference on Communications, ICC 2015 tenutosi a London, UK nel 2015) [10.1109/ICC.2015.7248436].
On the application of multiuser detection in multibeam satellite systems
COLAVOLPE, Giulio;Piemontese, Amina;UGOLINI, Alessandro
2015-01-01
Abstract
We study the achievable rates by a single user in multibeam satellite scenarios. We show alternatives to the conventional symbol-by-symbol detection applied at user terminals. Single user detection is known to suffer from strong degradation when the terminal is located near the edge of the coverage area, and when aggressive frequency reuse is adopted. For this reason, we consider multiuser detection, and take into account the strongest interfering signal. Moreover, we analyze a different transmission strategy, where the signals from two adjacent beams jointly serve two users in a time division multiplexing fashion. We describe an information-theoretic framework to compare different transmission/detection strategies by computing the information rate of the user in the reference beam.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
