Complex analog correlating pulsed UWB-receiver in realistic 0-1GHz channels
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The complex analog correlating (CAC) receiver is an excellent candidate for low power, low data rate pulsed UWB communication, but only in ideal AWGN channels. This paper adapts the traditional architecture and acquisition scheme of this receiver for operation in realistic multipath channels. Two schemes are presented: a high performance scheme, and a simpler, but easy to implement and low power scheme. Monte-Carlo simulations illustrate the performance improvement in realistic 802.15.4a (LOS and NLOS) channels. The receiver's power consumption can be traded for performance by tuning the number of resolved path components. The system outperforms the traditional CAC receiver and the transmitted reference receiver in all environments.
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