FPGA Implementation of Synchronization Techniques used in OFDM Systems

Karakoc, Murat Can; Sertkaya, Muhammet Fatih; Kirkaya, Emre; Cavus, Enver

doi:10.1109/siu.2019.8806319

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Frame Synchronization1

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2024

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“…Timing synchronization algorithms are commonly categorized into non-aided data-based synchronization algorithms and aided synchronization algorithms. The maximum likelihood algorithm, which makes use of cyclic prefixes, is classified under the former category [7], whereas synchronization algorithms that rely on training sequence correlation belong to the latter [8]. Delay autocorrelation algorithms can be utilized for frame synchronization, and the signal flow diagram of the algorithm is depicted in Figure 2.…”

Section: Frame Synchronizationmentioning

confidence: 99%

FPGA implementation of joint synchronization algorithm based on short training sequence

Liu,

Zhang,

Zhu

et al. 2024

J. Phys.: Conf. Ser.

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Synchronization processing is a vital component of the Orthogonal Frequency Division Multiplexing (OFDM) receiver, playing a decisive role in determining the performance of the OFDM receiver. Based on the repetitive structure of the Short Training Sequence (STS) in the IEEE 802.11 physical layer protocol data unit, this paper proposes and implements a joint synchronization algorithm to address issues related to data packet detection and coarse frequency offset correction during the synchronization process. Through software simulation and Field-Programmable Gate Array (FPGA) board-level validation, it is concluded that the algorithm ensures performance while, to some extent, conserving FPGA resources.

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Section: Frame Synchronizationmentioning

confidence: 99%