Robust Symbol Timing Synchronization for OFDM Systems Using PN Sequence
Keywords:
Orthogonal frequency division multiplexing (ofdm), pn (pseudo noise), symbol timing offsets (sto) and preamble.Abstract
This paper presents the symbol timing
synchronization for OFDM receivers using PN sequence of
values 1 or -1. The proposed design preamble is based on the
correlation property of Pseudo Noise (PN) codes. Simulation
results show that the proposed scheme is more robust to
multipath fading channel than the conventional PN-based Park
method, particularly at low SNR. It helps in setting the high
threshold value in timing metric estimator.
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