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Resource Block-Level Power Allocation in Asynchronous Multi-Carrier D2D Communications

Mylène Pischella 1 Rostom Zakaria 1 Didier Le Ruyet 1 
1 CEDRIC - LAETITIA - CEDRIC. Traitement du signal et architectures électroniques
CEDRIC - Centre d'études et de recherche en informatique et communications
Abstract : This letter focuses on weighted sum rate maximiza-tion with filter bank multi-carrier (FBMC) and orthogonal frequency division multiplex (OFDM) multi-carrier modulations for asynchronous device-to-device (D2D) communications. The main difficulty in power allocation with asynchronous multi-carrier transmissions is that inter-channel interference (ICI) depends on subcarriers, whereas power values should be optimized with resource block (RB) granularity. In this letter, we show that the weighted sum rate maximization problem can be solved at RB level, while still considering ICI, and that the power allocation algorithm solving this problem is distributed and leads to its global optimum. Moreover, FBMC achieves higher data rates than OFDM, thanks to its lower ICI spread.
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Mylène Pischella, Rostom Zakaria, Didier Le Ruyet. Resource Block-Level Power Allocation in Asynchronous Multi-Carrier D2D Communications. IEEE Communications Letters, Institute of Electrical and Electronics Engineers, 2017, 21 (4), pp.813-816. ⟨10.1109/LCOMM.2016.2640273⟩. ⟨hal-02446313⟩



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