Probability, random processes, and estimation theory for engineers
Probability, random processes, and estimation theory for engineers
Fundamentals of statistical signal processing: estimation theory
Fundamentals of statistical signal processing: estimation theory
Implementation aspects of a transmitted-reference UWB receiver: Research Articles
Wireless Communications & Mobile Computing - Special Issue: Ultrawideband for Wireless Communications
BER sensitivity to mistiming in ultra-wideband impulse radios - part II: fading channels
IEEE Transactions on Signal Processing
Optimal pilot waveform assisted modulation for ultrawideband communications
IEEE Transactions on Wireless Communications
A GLRT approach to data-aided timing acquisition in UWB radios-Part I: algorithms
IEEE Transactions on Wireless Communications
Unified Analysis of UWB Transmitted-Reference Schemes in the Presence of Narrowband Interference
IEEE Transactions on Wireless Communications
Ultra-wideband for multiple access communications
IEEE Communications Magazine
Channel estimation for ultra-wideband communications
IEEE Journal on Selected Areas in Communications
Performance of ultra-wideband communications with suboptimal receivers in multipath channels
IEEE Journal on Selected Areas in Communications
Equivalent system model and equalization of differential impulse radio UWB systems
IEEE Journal on Selected Areas in Communications
Analysis of UWB transmitted-reference communication systems in dense multipath channels
IEEE Journal on Selected Areas in Communications
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A complete detection, channel estimation, synchronization, and equalization scheme for a transmitted reference (TR) ultra-wideband (UWB) system is proposed in this paper. The scheme is based on a data model which admits a moderate data rate and takes both the interframe interference (IFI) and the intersymbol interference (ISI) into consideration. Moreover, the bias caused by the interpulse interference (IPI) in one frame is also taken into account. Based on the analysis of the stochastic properties of the received signals, several detectors are studied and evaluated. Furthermore, a data-aided two-stage synchronization strategy is proposed, which obtains sample-level timing in the range of one symbol at the first stage and then pursues symbol-level synchronization by looking for the header at the second stage. Three channel estimators are derived to achieve joint channel and timing estimates for the first stage, namely, the linear minimum mean square error (LMMSE) estimator, the least squares (LS) estimator, and the matched filter (MF). We check the performance of different combinations of channel estimation and equalization schemes and try to find the best combination, that is, the one providing a good tradeoff between complexity and performance.