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Heterogeneous and Opportunistic Wireless Networks
(Springer-Verlag Italia s.r.l., 2012)
Recent years have witnessed the evolution of a large plethora of wireless technologies with different characteristics, as a response of the operators' and users' needs in terms of an efficient and ubiquitous delivery of ...
Statistics of the MLE and approximate upper and lower bounds-Part I: Application to TOA estimation
(Institute of Electrical and Electronics Engineers Inc., 2014)
In nonlinear deterministic parameter estimation, the maximum likelihood estimator (MLE) is unable to attain the Cramér-Rao lower bound at low and medium signal-to-noise ratios (SNRs) due the threshold and ambiguity phenomena. ...
Ultra-wideband range estimation: Theoretical limits and practical algorithms
(IEEE, 2008-09)
The high time resolution of ultra-wideband (UWB) signals enables wireless devices to perform accurate range estimation. In order to realize UWB systems with accurate ranging capabilities, both theoretical limits on range ...
LOS/NLOS detection for UWB signals: A comparative study using experimental data
(IEEE, 2010)
In this paper the problem of detecting the channel state between LOS and NLOS conditions is addressed using UWB signals. A new distribution-based identification approach is proposed and its performance is compared with ...
Noise enhanced detection in the restricted Bayesian framework
(IEEE, 2010)
Effects of additive independent noise are investigated for sub-optimal detectors according to the restricted Bayes criterion. The statistics of optimal additive noise are characterized. Also, sufficient conditions for ...
ECRB-based optimal parameter encoding under secrecy constraints
(Institute of Electrical and Electronics Engineers, 2018)
In this paper, optimal deterministic encoding of a scalar parameter is investigated in the presence of an eavesdropper. The aim is to minimize the expectation of the conditional Cramér-Rao bound at the intended receiver ...
Theoretical limits and a practical estimator for joint estimation of respiration and heartbeat rates using UWB impulse radio
(IEEE, 2007)
In this paper, Cramer-Rao lower bounds are derived fo r joint estimation of respiration and heartbeat rates via impulse radio ultra-wideband signals. Generic models are employed for displacement functions due to respiration ...
Enhanced position estimation via node cooperation
(IEEE, 2010)
Two-way time-of-arrival (TW-ToA) is a widely used ranging protocol that can provide the distance between two devices without time synchronization. One drawback of the TW-ToA is poor positioning accuracy in the absence of ...
On multi-dimensional and noisy quadratic signaling games and affine equilibria
(IEEE, 2015-07)
This study investigates extensions of the quadratic cheap talk and signaling game problem, which has been introduced in the economics literature. Two main contributions of this study are the extension of Crawford and Sobel's ...
On the optimality of stochastic signaling under an average power constraint
(IEEE, 2010-09-10)
In this paper, stochastic signaling is studied for scalar valued binary communications systems over additive noise channels in the presence of an average power constraint. For a given decision rule at the receiver, the ...