Abstract | ||
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We propose an OFDM receiver capable of estimating and correcting, on a symbol-by-symbol basis, the subcarrier dependent Doppler shifting due to the movement of source and receiver in an underwater acoustic network. We propose two methods of estimation: one of which is based upon the marginal maximum likelihood principle, and one of which is ad-hoc. We compare the performance of both estimators to the Cramer-Rao lower bound. We show through simulation that the proposed receiver design performs well for a source that is accelerating at 0.29 m/s2. |
Year | DOI | Venue |
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2009 | 10.1145/1654130.1654131 | WUWNET |
Keywords | Field | DocType |
proposed receiver design,symbol-by-symbol basis,underwater acoustic network,symbol doppler rate estimation,marginal maximum likelihood principle,ofdm receiver,subcarrier dependent doppler,mobile underwater ofdm,ofdm,doppler shift,cramer rao lower bound | Subcarrier,Upper and lower bounds,Symbol,Electronic engineering,Doppler rate,Doppler effect,Orthogonal frequency-division multiplexing,Mathematics,Estimator,Underwater | Conference |
Citations | PageRank | References |
4 | 0.47 | 5 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Nathan Parrish | 1 | 44 | 4.48 |
Sumit Roy | 2 | 2245 | 203.71 |
Payman Arabshahi | 3 | 82 | 9.64 |