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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 Forty-First 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 |
