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• W1523765576 abstract "This paper presents an efficient time-domain coarse frequency offset (FO) synchronizer (TCFS) for multi-band orthogonal frequency division multiplexing (MB-OFDM) systems effective for practical ultra-wide- band (UWB) environment. The proposed algorithm derives its estimates based on phase differences in the received subcarrier signals of several successive OFDM symbols in the preamble. We consider different carrier FOs and dif- ferent channel responses in different bands to keep the analysis and simulation compatible for practical multi- band UWB scenario. Performance of the algorithm is studied by means of bit error rate (BER) analysis of MB- OFDM system. We derive the Cramer Rao lower bound (CRLB) of the estimation error variance and compare it with the simulated error variance both in additive white Gaussian noise and UWB channel model (CM) environ- ments, CM1-CM4. Both analysis and simulation show that TCFS can estimate coarse carrier FO more efficiently in UWB fading channels for MB-OFDM applications com- pared to the other reported results in literature. Also, computational complexity of the proposed algorithm is analyzed for its usability evaluation." @default.
• W1523765576 created "2016-06-24" @default.
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• W1523765576 date "2009-04-01" @default.
• W1523765576 modified "2023-09-26" @default.
• W1523765576 title "A Novel Frequency Synchronization Algorithm and its Cramer Rao Bound in Practical UWB Environment for MB-OFDM Systems" @default.
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