Browsing by Keywords "Cramér-Rao lower bound"
Now showing items 1-12 of 12
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Comparative theoretical analysis of distance estimation in visible light positioning systems
(Institute of Electrical and Electronics Engineers Inc., 2016)In this paper, theoretical limits and estimators are studied for synchronous and asynchronous visible light positioning (VLP) systems. Specifically, the Cramér-Rao lower bounds (CRLBs) and maximum likelihood estimators are ... -
Direct and two-step positioning in visible light systems
(IEEE, 2018)Visible light positioning (VLP) systems based on light emitting diodes can facilitate high accuracy localization services for indoor scenarios. In this paper, direct and two-step positioning approaches are investigated for ... -
Direct positioning in synchronous and asynchronous visible light systems
(IEEE, 2018)In this paper, direct positioning approaches are investigated for both synchronous and asynchronous visible light systems. First, the maximum likelihood estimator (MLE) and the Cramér-Rao lower bound (CRLB) are derived for ... -
Distance and position estimation in visible light systems with RGB LEDs
(Elsevier, 2022-01-17)In this paper, distance and position estimation problems are investigated for visible light positioning (VLP) systems with red-green-blue (RGB) light emitting diodes (LEDs). The accuracy limits on distance and position ... -
Enhancements to threshold based range estimation for ultra-wideband systems
(IEEE, 2014-09)Ultra-wideband (UWB) signals have very high time resolution, which makes them a very good candidate for range estimation based wireless positioning. Although the accuracy is the major concern for range estimation, it is ... -
Fundamental limits on localization in single input multiple output visible light systems
(Bilkent University, 2017-09)Visible light systems have recently been considered as an e ective and promising solution for indoor positioning. In this thesis, a theoretical accuracy analysis is conducted for position estimation in visible light ... -
Jamming of Wireless Localization Systems
(Institute of Electrical and Electronics Engineers Inc., 2016)In this paper, the optimal jamming of wireless localization systems is investigated. Two optimal power allocation schemes are proposed for jammer nodes in the presence of total and peak power constraints. In the first ... -
Optimal jammer placement in wireless localization networks
(IEEE, 2015-06-07)The optimal jammer placement problem is proposed for a wireless localization network, where the aim is to degrade the accuracy of locating target nodes as much as possible. In particular, the optimal location of a jammer ... -
Optimal jamming of wireless localization systems
(IEEE, 2015-06)In this study, optimal jamming of wireless localization systems is investigated. Two optimal power allocation schemes are proposed for jammer nodes in the presence of total and peak power constraints. In the first scheme, ... -
Optimal power allocation for jammer nodes in wireless localization systems
(Institute of Electrical and Electronics Engineers Inc., 2017)In this paper, optimal power allocation strategies are investigated for jammer nodes in a wireless localization system. Building upon the concept of the restricted Bayesian approach, a generalized optimization strategy, ... -
Power adaptation for vector parameter estimation according to Fisher information based optimality criteria
(Elsevier BV, 2022-03)The optimal power adaptation problem is investigated for vector parameter estimation according to various Fisher information based optimality criteria. By considering an observation model that involves a linear transformation ... -
Theoretical limits on localization in single input multiple output (SIMO) visible light systems
(Elsevier, 2018)In this work, a theoretical accuracy analysis is conducted for position estimation in visible light systems based on received signal strength (RSS) measurements. Considering a single light emitting diode (LED) at the ...
