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Journal Articles IEEE Communications Letters Year : 2019

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

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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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Dates and versions

hal-02132628 , version 1 (17-05-2019)

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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, 2019, 23 (6), pp.979-982. ⟨10.1109/LCOMM.2019.2913363⟩. ⟨hal-02132628⟩
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