Fakülteler: Recent submissions
Now showing items 641-660 of 1641
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Effects of channel models and optional data rates on the IEEE 802.15.4a system performance [Kanal modellerinin ve seçime bağli veri hızlarının IEEE 802.15.4a sistem başarımına etkileri]
(2010)The wireless personal area network standard IEEE 802.15.4a uses ultra wideband impulse radios (UWB-IRs) for precise ranging and location and as well as for communications at low data rates (about 1 Mb/s). In addition to ... -
Semiblind joint channel estimation and equalization for OFDM systems in rapidly varying channels
(2010)We describe a new joint iterative channel estimation and equalization algorithm for joint channel estimation and data detection for orthogonal frequency division multiplexing (OFDM) systems in the presence of frequency ... -
Flexible radio resource allocation for machine type communications in 5G cellular networks
(Institute of Electrical and Electronics Engineers Inc., 2018)The fast growth of machine-to-machine (M2M) communications in cellular networks brings the challenge of satisfying diverse Quality-of-Service (QoS) requirements of massive number of machine type communications (MTC) devices ... -
Gravitational search algorithm for post-outage bus voltage magnitude calculations
(2010)Branch outage problem is one of the key problems in power system security analysis. This paper solves branch outage problem using a bounded approach. Local constrained optimization problem in the bounded approach is solved ... -
A spectral divide and conquer method based preconditioner design for power flow analysis
(2010)Power system simulations most of the time require solution of a large sparse linear system. Traditional methods such as LU decomposition based direct methods are not suitable for parallelization in general. Thus Krylov ... -
Harmony search method based parallel contingency analysis
(2010)Power system security management is one of the key problems in power system analysis. Power system management center operators need to simulate contingencies as fast as possible and take the remedial actions in time. These ... -
Space time coded OFDM system with transmit and receive antenna selection
(2010)In this paper antenna selection both at the transmitter and the receiver is proposed for space-time coded (STC) orthogonal frequency division multiplexing (OFDM) systems. Antennas for all-subcarriers or per-subcarrier are ... -
Joint phase noise estimation and source detection [Ortak faz gürültüsü kestirimi ve kaynak sezimlemesi]
(2010)Rapidly time-varying and random disturbing effects on the phase of a signal waveform are known as phase noise. In this paper we consider the problem of joint detection of continuous-valued information source output and ... -
Routing with (p-percent) partial flooding for opportunistic networks
(2010)Opportunistic networks are one of the fast developing research areas in mobile communications. Under opportunistic networks mobile nodes try to communicate with other nodes without any prior information and knowledge about ... -
Synthesis of resistively terminated high-pass LC ladder networks [Direnç ile sonlandırılmış yüksek geçiren LC merdiven devrelerin sentezi]
(2010)In this paper a transfer matrix factorization based synthesis algorithm for resistively terminated high-pass LC ladder networks is presented. In the algorithm component value of the extracted element and the scattering ... -
RGB color based occupancy rate detection of indoor spaces [RGB renk tabanlı kapalı mekanların doluluk oranının belirlenmesi]
(Institute of Electrical and Electronics Engineers Inc., 2018)In this study a system has been developed to detect the human density of indoor spaces such as libraries banks shopping malls. The RGB images used in this work was obtained from the real-life space. First and second order ... -
Learning from art museums: Three course assignments for pre-service elementary teachers
(2010)This paper presents a course assignment that required pre-service teacher education students to reflect on a museum in the Fort Worth and Dallas Metroplex in Texas. As part of their art education course at the College of ... -
Post-outage state estimations for outage management
(IFAC Secretariat, 2011)Real time outage information is required to the utility operators for outage management process. In addition to some basic information regarding the outage post-outage system status will help to improve the response to ... -
Design of impedance matching network for B&K 8104 hydrophone via Direct Computational Technique for underwater communication
(2010)Underwater acoustic communication is a rapidly growing field of applied research and is a technique of sending and receiving message below water. There are several ways of doing such communication but the most common one ... -
Nearly a decade on - The perception of international arbitration law by Turkish Courts
(Oxford University Press, 2010)[Abstract Not Available] -
Synthesis of resistively terminated LC ladder networks
(Istanbul University, 2011)In this work element value calculation algorithms have been proposed for low-pass high-pass band-pass and band-stop LC ladder networks. According to the calculated constant from the given transfer scattering matrix the ... -
Electromagnetic interactions of heavy ions at small impact parameters and lepton pair productions
(Institute of Physics Publishing, 2011)In peripheral collisions the strong electromagnetic fields are produced since the fully stripped heavy ions moves at ultra-relativistic velocities. Lepton pairs especially the electron-positron pairs are the result of this ... -
Anomaly detection in walking trajectory [Yürüyüş yörüngesinde anormallik algılama]
(Institute of Electrical and Electronics Engineers Inc., 2018)Analysis of the walking trajectory and the detection of anomalies in this trajectory provide important benefits in the fields of health and security. In this work two methods to detect anomalies in trajectories are compared. ... -
Neo-liberal policies and poverty: Effects of policies on poverty and poverty reduction in Turkey
(2011)[Abstract Not Available] -
Assessing quality in higher education: New criteria for evaluating students' satisfaction
(Taylor & Francis, 2011)The aim of this research is to present a new quality assurance model (5Qs) and to examine the major factors affecting students' perception of cumulative satisfaction. The model includes behavioural dimensions of student ...