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A frequency offset estimation scheme is presented for coarse frequency offset estimation of Ultra-WideBand (UWB) Multi-Band Orthogonal Frequency Division Multiplexing (MBOFDM) systems. Cramer Rao Lower Bound (CRLB) for variance of the estimated frequency offset is derived and compared with the simulated results of the proposed scheme. Performance of the MB-OFDM system in terms of the Bit Error Rate (BER) with suggested frequency offset estimator is also reported. The algorithm is tested by computer simulation over multiple UWB Channel Models (CM), CM1: 0-4m line-of-sight, CM2: 0-4m non-line-of-sight (NLOS) and CM3: 4-10m NLOS, and CM4: 25nsec. Delay spread as suggested by IEEE 802.15 Channel Modeling sub-committee.
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