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Title:
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Preamble-based Symbol Timing Estimation for Wireless OFDM Systems |
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Author:
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Gadhiok, Manik; Cavallaro, Joseph R.
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Type:
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Conference Paper |
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Publisher:
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IEEE |
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Citation:
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M. Gadhiok and J. R. Cavallaro,"Preamble-based Symbol Timing Estimation for Wireless OFDM Systems," in 41st Asilomar Conference on Signals, Systems and Computers, 2007, pp. 1791-1794. |
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Abstract:
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We propose a timing estimation scheme that reduces computational complexity while achieving performance comparable to the autocorrelation method
commonly employed at the wireless receiver. The proposed method is based on the average magnitude difference function (AMDF). We present performance
results for the proposed method for AWGN and Raleighfading channels in the context of IEEE 802.11a short preamble sequence. We also propose a preamble
sequence based on Golomb sequence and compare its timing estimation performance with the IEEE 802.11a short-sequence. Simulation results show significant
performance improvements for AWGN as well as Raleighfading channels. |
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Date Published:
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2007-11-01 |
