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Article Dans Une Revue IEEE Communications Letters Année : 2023

Asynchronous WPNC With DFT Precoding and Symbol-Spaced Processing

Résumé

This letter addresses the problem of asynchronous reception in a 2-source Hierarchical MAC (H-MAC) in the context of a Wireless Physical Layer Network Coded (WPNC) system with a Hierarchical Decode and Forward (HDF) relaying strategy. In this work, we assume fractional symbol duration time delays and propose an OFDM-like transmitter side linear precoding together with symbol-spaced (SS) processing at the receiver. We derive an equivalent channel model and analyze its properties in the case of a root-raised-cosine (RRC) modulation pulse. We present a numerical evaluation of the Hierarchical Bit Error Rate (H-BER) for BPSK and QPSK alphabets.
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Dates et versions

hal-04541844 , version 1 (11-04-2024)

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Petr Hron, Jan Sykora, Laurent Clavier. Asynchronous WPNC With DFT Precoding and Symbol-Spaced Processing. IEEE Communications Letters, 2023, 27 (9), pp.2279-2282. ⟨10.1109/LCOMM.2023.3291594⟩. ⟨hal-04541844⟩
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