Numerical recipes in C: the art of scientific computing
Numerical recipes in C: the art of scientific computing
Joint Parameter Estimation for UWB Energy Detectors Using OOK
Wireless Personal Communications: An International Journal
Energy detection of multilevel PAM signals with systematic threshold mismatch
Research Letters in Communications
Error probability of energy detected multilevel PAM signals in lognormal multipath fading channels
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Channel models for ultrawideband personal area networks
IEEE Wireless Communications
The calculation of the probability of detection and the generalized Marcum Q-function
IEEE Transactions on Information Theory
Performance of ultra-wideband communications with suboptimal receivers in multipath channels
IEEE Journal on Selected Areas in Communications
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In this paper, we consider the error probability for multilevel pulse amplitude modulated (PAM) signals, which are used with a multipath diversity combiner based on energy detection (ED). A distinctive feature of ED combined with nonconstant envelope signals is that the symbol decision thresholds need to be determined from a non-Gaussian distributed decision variable. We first present a novel theoretical analysis framework which provides a basis to predict the error performance of ED-PAM systems with optimal maximum likelihood decision thresholds in general multipath fading channels with arbitrary number of degrees of freedom. We then use frequency-selective lognormal fading channels as a case example and evaluate simple approximations for the error probability. Moreover, the analysis is extended to include the joint effect of systematic and random threshold deviation on the error probability with suboptimal but practical data-aided threshold estimation.