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Trade-off between Frame Synchronization and Channel Decoding for Short Packets

Alex The Phuong Nguyen 1, 2 Raphaël Le Bidan 1, 2 Frédéric Guilloud 1, 2 
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : We consider the transmission of successive packets where each packet consists of a frame synchronization word (SW), followed by coded symbols. For short packets the header cost is no longer negligible and SW design requires careful optimization. In particular, a trade-off arises depending on the way the total transmit power is split among the SW and the codeword. Assuming optimal finite-length codes, we develop tight approximations on the probability of false synchronization for several synchronization metrics and use them to characterize this trade-off. Simulation results and comparisons with 5G Polar codes show the relevance of the proposed optimization for short-packet communication system design.
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Submitted on : Friday, May 17, 2019 - 12:30:38 PM
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Alex The Phuong Nguyen, Raphaël Le Bidan, Frédéric Guilloud. Trade-off between Frame Synchronization and Channel Decoding for Short Packets. IEEE Communications Letters, Institute of Electrical and Electronics Engineers, 2019, 23 (6), pp.979-982. ⟨10.1109/LCOMM.2019.2913363⟩. ⟨hal-02132628⟩



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