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Title of Journal: Wireless Pers Commun

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Abbravation: Wireless Personal Communications

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Springer US

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1572-834X

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Frequency Offset Estimation by MultiBand Averagin

Authors: Debarati Sen Saswat Chakrabarti R V Raja Kumar
Publish Date: 2009/08/05
Volume: 54, Issue: 4, Pages: 623-633
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Abstract

In this literature we present a new method for estimating the coarse frequency offset in multiband orthogonal frequency division multiplexing MBOFDM based ultrawideband UWB communication systems The proposed training based coarse frequency offset CFO estimator performs an averaging of initial estimate over the multiple bands of transmission during estimation process The proposed multiband averaging provides an improved estimation of approximately three times for band group 1 BG1 compared to our earlier proposed scheme To prove the efficiency of the proposed scheme the Cramer Rao lower bound CRLB of the estimation error is calculated and compared with the simulation results We illustrate the performance of MBOFDM system in terms of biterror rate BER with multiband averaged frequency synchronization MBAFS and compare with earlier reported results for 100000 noisy realizations in UWB channel model 2 CM2

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