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- W2999212738 abstract "The new radio (NR) system is recently proposed to deploy alongside the long term evolution (LTE) system to improve the wireless communication capacity. The Vandermonde-subspace frequency division multiplexing (VFDM) is an efficient technique for such a two tier network, whereby the NR transmitter can reuse the frequency spectrum of LTE system meanwhile guaranteeing interference free to LTE. In this paper, we first investigate the robust rate-maximization problem in the VFDM system. In the condition of imperfect channel state information (CSI), the precoder is optimized to satisfy both non-interference to LTE system and rate-maximization in the NR system. To tackle the challenge in solving such a non-convex problem, an iterative algorithm is proposed based on the block coordinate descent (BCD) and penalty dual decomposition (PDD) methods. Finally, simulation results demonstrate the superiority of the proposed algorithm in terms of robustness and achievable rate over the conventional SVD-based VFDM technique." @default.
- W2999212738 created "2020-01-23" @default.
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- W2999212738 date "2020-03-01" @default.
- W2999212738 modified "2023-10-11" @default.
- W2999212738 title "Robust Rate-Maximization Precoder Design for VFDM System" @default.
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- W2999212738 doi "https://doi.org/10.1109/tvt.2020.2964327" @default.
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