Kadir Has University Institutional Repository: Recent submissions
Now showing items 681-700 of 4497
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Busy tone implementation for coexistence of IEEE 802.22 and 802.11af systems
(Institute of Electrical and Electronics Engineers Inc., 2015)In this paper, a new algorithm based on busy tone approach has been proposed for the coexistence of IEEE 802.22 and IEEE 802.11af systems in TV white space. Different from the earlier study, in addition to 802.11af access ... -
Modeling of visible light channels and performance analysis of ACO-OFDM
(Institute of Electrical and Electronics Engineers Inc., 2015)Spectrum scarcity of traditional radio communication has led communication engineers to find new alternatives. Indoor visible light communication is one alternative to solve this problem since its spectrum is not regulated ... -
MP-SAGE based channel estimation for underwater cooperative OFDM systems
(2013)In this paper, an efficient ehannel estimation algorithm is proposed fOl' amplify-And-forward (AF) eooperative relay based orthogonal fl'equency division multiplexing (OFDM) system in the presenee of sparse underwater ... -
A new technique for OFDM: OFDM-index modulation
(2013)In this study, a novel scheme called orthogonal frequency division multiplexing with index modulation (OFDMIM) is proposed for frequency selective channels. In this scheme, the information is conveyed not only by only M-Ary ... -
Real time detection and classification of age range smart signs at TV broadcast
(2011)In this paper, real time detection and classification of the "Smart Signs", which appear at the beginning and after the commercial breaks of the programs at national TV channels, that indicates the appropriate viewer ages ... -
Effect of channel estimation errors on the performance of space time coded systems with antenna selection
(2007)This paper presents the effects of channel estimation errors on the performance, especially diversity gain, of space-time coded systems with antenna selection. We consider maximum signal to noise ratio as the antenna ... -
İterative receiver for DS-CDMA systems in the presence of time-varying channels
(2008)In this paper, we present an efficient iterative receiver structure of tractable complexity for joint multiuser detection and multichannel estimation (JDE) ofdirect-sequence code-division multiple-access systems operating ... -
Orthogonal frequency division multiplexing with index modulation
(2012)In this paper, a novel orthogonal frequency division multiplexing (OFDM) scheme, which is called OFDM with index modulation (OFDM-IM), is proposed for frequency-selective fading channels. In this scheme, inspiring from the ... -
Analytical approaches for the amplitude and frequency computations in the astable cellular neural networks with opposite sign templates
(2007)In this paper, by using surface fitting methods, analytical approaches for amplitudes and frequencies of the x1,2(t) "States" in a simple dynamical neural network called "Cellular Neural Network with Opposite Sign Templates" ... -
A numerical method for frequency determination in the astable cellular neural networks with opposite-sign templates
(2006)In this study, a numerical method is proposed to determine the oscillation frequencies in the astable cellular neural networks with opposite-sign templates [1]. This method depends on the training of a multilayer perceptron ... -
Space time coded cooperative communication with joint antenna and relay selection
(2010)Although multiple antenna and cooperative communication techniques can increase the system capacity, it can be difficult to use them in practice because of their high complexity. In this paper," joint transmit/receive ... -
Energy Loss Minimization with Parallel Implementation of Marine Predators Algorithm
(Institute of Electrical and Electronics Engineers Inc., 2021)Distribution network (DN) service continuity is one of the significant issues in today's power systems. This paper aims to put a strategy for supplying loads with less discontinuity and affordable energy-consuming. The ... -
Kehrtwende mit Fragezeichen: Erst Möchtegern-Spielmacher, dann Nebendarsteller, jetzt Partner der USA?
(Deutsche Gesellschaft fuer Auswartige Politik e.V., 2015)[No abstract available] -
Cervical spine injuries in children
(2004)Cervical spine injuries in children and adolescents are rare. Common mechanisms include motor vehicle accidents, sports injuries, fall from height, and gunshot injuries. Cervical spine injuries are classified by Allen and ... -
Mechanical strength of antibiotic-impregnated bone cement on Day 0 and Day 15: a biomechanical study with Surgical Simplex P and teicoplanin
(2002)OBJECTIVES: To determine the maximum amount of a specific antibiotic added to 40 g acrylic bone cement in terms of the effect on mechanical properties of the bone cement on Day 0 and after antibiotic release on Day 15. ... -
Corporate risk-taking in developed countries: The influence of economic policy uncertainty and macroeconomic conditions
(Elsevier B.V., 2020)Using 74,974 firm-year observations covering 15 developed European countries over the time period 1999–2017, this paper explores the effect of economic policy uncertainty on corporate risk-taking. The findings indicate ... -
Turkey: Challenges and strategies toward de-carbonization and sustainable development under the age of finance
(Routledge, 2023)The aim of this paper is to present the key challenges and structural constraints as well as potential strategies toward de-carbonization and the green transformation in Turkey, and to argue that the current mode of global ... -
A new fog-based transmission scheduler on the Internet of multimedia things using a fuzzy-based quantum genetic algorithm
(IEEE Computer Society, 2023)The Internet of Multimedia Things (IoMT) has recently experienced a considerable surge in multimedia-based services. Due to the fast proliferation and transfer of massive data, the IoMT has service quality challenges. This ... -
An Efficient Architecture of Adder Using Fault-Tolerant Majority Gate Based on Atomic Silicon Nanotechnology
(Institute of Electrical and Electronics Engineers Inc., 2023)It is expected that Complementary Metal Oxide Semiconductor (CMOS) implementation with ever-smaller transistors will soon face significant issues such as device density, power consumption, and performance due to the ...