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Symbol Synchronization of OFDM Systems using Signs of Preamble Signals  

황진권 (우석대학교 전기전자공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.5A, 2004 , pp. 502-513 More about this Journal
Abstract
This paper proposes a symbol synchronization method in the IEEE 802.11a wireless OPDM system, which uses only signs of the in-phase and the quadrature signals in the short preamble. The short preamble is sampled with 2 tines of Nyquist sampling rate and both of the autocorrelation and the cross-relation are used in the proposed method. This method has some advantages that the ACG (Automatic Gain Control) can be processed concurrently during the short preamble and its implementation is not much complicated. The proposed symbol synchronization method is verified through simulations on frequency offset, multi-path and white Gaussian noise.
Keywords
OFDM; symbol synchronization; IEEE 802.1la; correlation; sign;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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