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[Zl17] Advanced FB-MC for D2D communications
Rapport Scientifique : Date de dépot: 2017/01/13, Nb pages 39, (Tech. Rep.: CEDRIC-17-3940)Mots clés: D2D, Coexistence, PSD model, Interferences table, flexible waveforms, 5G, underlay communication.
Résumé:
The focus of the ACCENT5 project is to study advanced techniques to enable the efficient introduction of device-to-device (D2D) communications in the next generation of cellular wireless networks (5G). In order to provide a clear overview of the context in which the project will evolve, this deliverable presents the main characteristics of potential multicarrier waveforms (at PHY layer) for D2D communications to be able to coexistence with deployed cellular users in the cell.
After defining and describing the different technical characteristics of the potential waveforms for 5G (FMT, FBMC, GFDM, and Lapped-FBMC) coexistence capabilities have been analysed and compared for two scenarios; that named homogeneous, where both cellular users and D2D devices use same PHY (i.e. CP-OFDM) layer, and second named, heterogeneous environment where the cellular users use the CP-OFDM (following the LTE standard) and D2D users use FBMC scheme.
A special attention is dedicated to modelling the interference and the bits transmitted in function of available OFDM time symbols in the transmission window.
A specific scheme named FFT-FBMC, has been also presented for the first time in this project to combat the FBMC intrinsic interference and enable some MIMO techniques such as Space-time Blokc Coding (STBC) and Maximum-Likelihood Spatial Multiplexing (ML-SM). Indeed, FFT-FBMC performs FFT/IFFT precoding and postcoding on each subcarrier in order to get rid of the FBMC intrinsic interference. A deep analysis on the robusteness of this last proposed PHY scheme is carried out in this deliverable, and also the impact of the asynchronism on the FFT-FBMC performances is studied .
In conclusion, this deliverable includes a deep analysis and a common reference on which the 5G candidate waveforms and their technical performances are compared and presented in order to have a coherent progress on the coexistence capabilities between cellular users and the D2D.
BibTeX
| @techreport { | |||
| Zl17, | |||
| title | = | "{Advanced FB-MC for D2D communications}", | |
| author | = | "R. Zakaria and D. le Ruyet", | |
| number | = | "{CEDRIC-17-3940}", | |
| institution | = | "{CEDRIC laboratory, CNAM-Paris, France}", | |
| date | = | {13-01-2017}, | |
| pages | = | "39", | |
| } | |||
