Power Allocation with Constraints over Parallel Gaussian Broadcast Channels

Konferenz: European Wireless 2006 - 12th European Wireless Conference 2006 - Enabling Technologies for Wireless Multimedia Communications
02.04.2006 - 05.04.2006 in Athens, Greece

Tagungsband: European Wireless 2006

Seiten: 4Sprache: EnglischTyp: PDF

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Stender, Boris; Huppert, Carolin (Department of Telecommunications and Applied Information Theory, University of Ulm, D-89081 Ulm, Germany)

This paper deals with the transmission over a set of parallel Gaussian broadcast channels, where the maximum number of users served in each channel is limited. Such a limitation is desirable to enable an efficient multi-user downlink transmission. Starting from the solution for optimal power allocation, a strategy is presented, to squeeze out users from overloaded channels. Computer simulations are presented which show that considerable improvement can be achieved with the proposed scheme in comparison to a scheduling approach.