Browsing by Author "Dulek, B."
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Average Fisher information maximisation in presence of costconstrained measurements
Dulek, B.; Gezici, Sinan (The Institution of Engineering and Technology, 2011)An optimal estimation framework is considered in the presence of costconstrained measurements. The aim is to maximise the average Fisher information under a constraint on the total cost of measurement devices. An optimisation ... 
Comments on 'a Representation for the Symbol Error Rate Using Completely Monotone Functions'
Dulek, B. (Institute of Electrical and Electronics Engineers Inc., 2014)It was shown in the abovetitled paper by Rajan and Tepedelenlioglu (see ibid., vol. 59, no. 6, p. 392231, June 2013) that the symbol error rate (SER) of an arbitrary multidimensional constellation subject to additive ... 
Convexity properties of detection probability under additive Gaussian noise: optimal signaling and jamming strategies
Dulek, B.; Gezici, Sinan; Arıkan, Orhan (IEEE, 2013)In this correspondence, we study the convexity properties for the problem of detecting the presence of a signal emitted from a power constrained transmitter in the presence of additive Gaussian noise under the NeymanPearson ... 
Cost minimization of measurement devices under estimation accuracy constraints in the presence of Gaussian noise
Dulek, B.; Gezici, Sinan (Elsevier, 2012)Novel convex measurement cost minimization problems are proposed based on various estimation accuracy constraints for a linear system subject to additive Gaussian noise. Closed form solutions are obtained in the case of ... 
Detector randomization and stochastic signaling for minimum probability of error receivers
Dulek, B.; Gezici, Sinan (Institute of Electrical and Electronics Engineers, 2012)Optimal receiver design is studied for a communications system in which both detector randomization and stochastic signaling can be performed. First, it is proven that stochastic signaling without detector randomization ... 
Joint detection and decoding in the presence of prior information with uncertainty
Bayram, S.; Dulek, B.; Gezici, Sinan (Institute of Electrical and Electronics Engineers Inc., 2016)An optimal decision framework is proposed for joint detection and decoding when the prior information is available with some uncertainty. The proposed framework provides tradeoffs between the average inclusive error ... 
Optimal channel switching in the presence of stochastic signaling
Dulek, B.; Varshney P.K.; Tutay, Mehmet Emin; Gezici, Sinan (IEEE, 2013)Optimal channel switching and detector design is studied for Mary communication systems in the presence of stochastic signaling, which facilitates randomization of signal values transmitted for each information symbol. ... 
Optimal decision rules for simple hypothesis testing under general criterion involving error probabilities
Dulek, B.; Öztürk, Cüneyd; Gezici, Sinan (IEEE, 2020)The problem of simple Mary hypothesis testing under a generic performance criterion that depends on arbitrary functions of error probabilities is considered. Using results from convex analysis, it is proved that an optimal ... 
Optimal power allocation for average detection probability criterion over flat fading channels
Sarıtaş, S.; Dulek, B.; Sezer, A. D.; Gezici, Sinan; Yüksel S. (Institute of Electrical and Electronics Engineers Inc., 2017)In this paper, the problem of optimal power allocation over flat fading additive white Gaussian noise channels is considered for maximizing the average detection probability of a signal emitted from a power constrained ... 
Optimal signaling and detector design for Mary communication systems in the presence of multiple additive noise channels
Dulek, B.; Tutay, M. E.; Gezici, Sinan; Varshney, P. K. (Academic Press, 201403)An Mary communication system is considered in which the transmitter and the receiver are connected via multiple additive (possibly nonGaussian) noise channels, any one of which can be utilized for the transmission of a ... 
Optimal stochastic signaling under average power and bit rate constraints
Goken, C.; Dulek, B.; Gezici, Sinan (Institute of Electrical and Electronics Engineers, 2018)The optimal stochastic signaling based on the joint design of prior distribution and signal constellation is investigated under an average bit rate and power constraints. First, an optimization problem is formulated to ... 
Optimum Power Allocation for Average Power Constrained Jammers in the Presense of NonGaussian Noise
Bayram, S.; Vanli, N. D.; Dulek, B.; Sezer, I.; Gezici, Sinan (Institute of Electrical and Electronics Engineers, 201208)We study the problem of determining the optimum power allocation policy for an average power constrained jammer operating over an arbitrary additive noise channel, where the aim is to minimize the detection probability of ... 
Optimum power randomization for the minimization of outage probability
Dulek, B.; Vanli, N. D.; Gezici, Sinan; Varshney P. K. (IEEE, 2013)The optimum power randomization problem is studied to minimize outage probability in flat blockfading Gaussian channels under an average transmit power constraint and in the presence of channel distribution information ... 
Power adaptation for cognitive radio systems under an average sinr loss constraint in the absence of path loss information
Dulek, B.; Gezici, Sinan; Sawai, R.; Kimura, R. (Kluwer Academic Publishers, 2014)An upper bound is derived on the capacity of a cognitive radio system by considering the effects of path loss and lognormal shadowing simultaneously for a singlecell network. Assuming that the cognitive radio is informed ... 
Universal bounds on the derivatives of the symbol error rate for arbitrary constellations
Dulek, B. (2014)The symbol error rate (SER) of the minimum distance detector under additive white Gaussian noise is studied in terms of generic bounds and higher order derivatives for arbitrary constellations. A general approach is adopted ...