Browsing by Author "Göken, Çağrı"
Now showing items 1-14 of 14
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Channel reconstruction based multiuser precoding with limited feedback
(IEEE, 2021-09-06)We consider the downlink of a multiuser multiple-input multiple-output (MU-MIMO) system, where each user feeds back a partial channel state information (CSI), namely, the quantized version of the dominant eigenvector of ... -
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 ... -
Effects of channel state information uncertainty on the performance of stochastic signaling
(IEEE, 2011)In this paper, stochastic signaling is studied for power-constrained scalar valued binary communications systems in the presence of uncertainties in channel state information (CSI). First, it is shown that, for a given ... -
Effects of signal randomization on performance of binary communications systems
(IEEE, 2010)In this paper, effects of signal randomization are studied for binary communications systems. First, it is stated that the average probability of error for a power-constrained binary communications system is minimized when ... -
Estimation theoretic optimal encoding design for secure transmission of multiple parameters
(IEEE, 2019-08-15)In this paper, optimal deterministic encoding of a vector parameter is investigated in the presence of an eavesdropper. The objective is to minimize the expectation of the conditional Cramér-Rao bound at the intended ... -
Estimation theoretic secure communication via encoder randomization
(IEEE, 2019-12-01)Estimation theoretic secure transmission of a scalar random parameter is investigated in the presence of an eavesdropper. The aim is to minimize the estimation error at the receiver under a secrecy constraint at the ... -
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 ... -
Optimal parameter design for estimation theoretic secure broadcast
(IEEE, 2020)In this letter, estimation theoretic secure broadcast of a random parameter is investigated. In the considered setting, each receiver device employs a fixed estimator and carries a certain security risk such that its ... -
Optimal parameter encoding strategies for estimation theoretic secure communications
(Bilkent University, 2019-12)Physical layer security has gained a renewed interest with the advances in modern wireless communication technologies. In estimation theoretic security, secrecy levels are measured via estimation theoretic tools and ... -
Optimal power allocation and optimal linear encoding for parameter estimation in the presence of a smart eavesdropper
(IEEE, 2022-08-11)In this article, we consider secure transmission of a deterministic vector parameter from a transmitter to an intended receiver in the presence of a smart eavesdropper. The aim is to determine the optimal power allocation ... -
Performance of edge windowing for OFDM under non-linear power amplifier effects
(IEEE, 2017)Edge windowing is a windowing technique for Orthogonal Frequency Division Multiplexing (OFDM) signals based on the idea of using shorter cyclic prefix (CP) and longer window lengths at the edge subcarriers while keeping ... -
Stochastic signaling for power constrained communication systems
(Bilkent University, 2011)In this thesis, optimal stochastic signaling problem is studied for power constrained communications systems. In the first part, optimal stochastic signaling problem is investigated for binary communications systems under ... -
Stochastic signaling under second and fourth moment constraints
(IEEE, 2010)Stochastic signaling is investigated under second and fourth moment constraints for the detection of scalar-valued binary signals in additive noise channels. Sufficient conditions are derived to determine when the use of ... -
A survey on optimal stochastic signaling and detector randomization
(IEEE, 2011)In this paper, a survey on stochastic signaling and detector randomization is presented for average power-constrained binary communications systems. First, the case of a single fixed detector at the receiver is considered, ...
