Browsing by Author "1"
Now showing items 1721-1740 of 2849
-
Optimal ambulance location with random delays and travel times
Ingolfsson, A.; Budge, S.; Erkut, Erhan (Springer Science+Business Media, 2008-09)We describe an ambulance location optimization model that minimizes the number of ambulances needed tonprovide a specified service level. The model measures service level as the fraction of calls reached within a given ... -
Optimal ATM replenishment policies under demand uncertainty
Ekinci, Y.; Serban, N.; Duman, Ekrem (Springer Nature, 2021-06)The use of Automated Teller Machines (ATMs) has become increasingly popular throughout the world due to the widespread adoption of electronic financial transactions and better access to financial services in many countries. ... -
Optimal bit and power loading for amplify-and-forward cooperative OFDM systems
Amin, O.; Uysal, Murat (IEEE, 2011-03)In this paper, we investigate bit and power allocation strategies for an orthogonal frequency division multiplexing (OFDM) cooperative network over frequency-selective fading channels. We assume amplify-and-forward relaying ... -
Optimal choice of transmission parameters for LDPC-coded CPM
Foruhandeh, Mahsa; Uysal, Murat; Altunbaş, İ.; Güven, T.; Gerçek, A. (IEEE, 2014)Continuous phase modulation (CPM) has attractive features such as spectral efficiency and constant envelope making it attractive for tactical waveforms. Serial concatenation of CPM with Low Density Parity Check Codes (LDPCs) ... -
Optimal combiners in optical wireless systems with spatial diversity and pre-amplification
Yiannopoulos, K.; Sagias, N. C.; Boucouvalas, A. C.; Uysal, Murat; Ghassemlooy, Z. (IEEE, 2016)We present analytical results on the operation of a pre-amplified optical wireless communication (OWC) system that also takes advantage of spatial diversity to improve its outage probability and average bit-error-rate (BER) ... -
Optimal negotiation decision functions in time-sensitive domains
Baarslag, T.; Gerding, E. H.; Aydoğan, Reyhan; Schraefel, M. C. (IEEE, 2015)The last two decades have seen a growing interest in automated agents that are able to negotiate on behalf of human negotiators in a wide variety of negotiation domains. One key aspect of a successful negotiating agent is ... -
Optimal peer-to-peer network for streaming multimedia broadcast
Özener, Başak Altan; Sunay, M. O. (Elsevier, 2020-11)This study identifies optimal transmission mechanisms for a streaming video service in a peer-to-peer network structure as a function of the number of active peers, a common service value, a common discount factor, and ... -
Optimal relay placement and diversity analysis of relay-assisted free-space optical communication systems
Kashani, M. A.; Safari, M.; Uysal, Murat (IEEE, 2013-01)Relay-assisted free-space optical (FSO) transmission exploits the fact that atmospheric turbulence fading variance is distance dependent and yields significant performance gains by taking advantage of the resulting shorter ... -
Optimal solution of the discrete cost multicommodity network design problem
Mrad, M.; Haouari, Mohamed (Elsevier, 2008-10-15)We investigate a multicommodity network design problem where a discrete set of Technologies with step-increasing cost and capacity functions should be installed on the edges. This problem is a fundamental network design ... -
Optimal survival strategy for branching Brownian motion in a Poissonian trap field
Öz, Mehmet; Engländer, J. (Institut Henri Poincaré, 2019-11)We study a branching Brownian motion Z with a generic branching law, evolving in R-d, where a field of Poissonian traps is present. Each trap is a ball with constant radius. The traps are hard in the sense that the process ... -
Optimistic entrepreneurs and new product introductions in high technology industries
Işıklar, Rukiye Işıl Yavuz; Dutta, D. K.; Soytaş, Mehmet Ali (Academy of Management, 2018)This study examines how the relationship between past performance and new product introductions is influenced by entrepreneurial optimism. Based on the behavioral theory of the firm, we test how past performance suggest ... -
Optimization and analysis of WLAN RF energy harvesting system architecture
Munir, Syeda Wajiha; Amjad, Osama; Zeydan, E.; Ercan, Ali Özer (IEEE, 2016)This paper presents the design, analysis and optimization of RF energy harvesting system for WLAN source operating at 2.4 GHz and 5.8 GHz. The system architecture comprises of RF WLAN source, wireless channel, an efficient ... -
Optimization and analysis of WLAN RF energy harvesting system architecture for low power wireless applications
Munır, Syeda Wajıha (2017-01)The presented work proposes a radio frequency (RF) energy harvesting circuit design, which scavenges energy from WLAN dual frequency band. In comparison to other available sources for energy scavenging, e.g. solar, wind ... -
Optimization by runtime specialization for sparse matrix-vector multiplication
Kamin, S.; Jesus Garzaran, M.; Aktemur, Tankut Barış; Xu, D.; Yılmaz, Buse; Chen, Z. (ACM, 2014)Runtime specialization optimizes programs based on partial information available only at run time. It is applicable when some input data is used repeatedly while other input data varies. This technique has the potential ... -
Optimization of ATM cash replenishment with group-demand forecasts
Ekinci, Y.; Lu, J.-C.; Duman, Ekrem (Elsevier, 2015-05-01)In ATM cash replenishment banks want to use less resources (e.g., cash kept in ATMs, trucks for loading cash) for meeting fluctuated customer demands. Traditionally, forecasting procedures such as exponentially weighted ... -
Optimization of collection optics for maximum fidelity in entangled photon sources
Durak, Kadir (TÜBİTAK, 2020)In this report, decoherence sources for entangled photons created by spontaneous parametric down-conversion phenomenon are studied. The phase and spatial distinguishability of photon pairs from orthogonal crystals reduce ... -
Optimization of spectrally selective Si/SiO2 based filters for thermophotovoltaic devices
Khosroshahi, F. K.; Ertürk, H.; Mengüç, Mustafa Pınar (Elsevier, 2017-08)Design of a spectrally selective filter based on one-dimensional Si/SiO2 layers is considered for improved performance of thermo-photovoltaic devices. Spectrally selective filters transmit only the convertible radiation ... -
Optimizing complex sequence pattern extraction using caching
Ray, M.; Lui, M.; Rundensteiner, E.; Dougherty, D. J.; Gupta, C.; Wang, S.; Mehta, A.; Arı, İsmail (IEEE, 2011)Complex Event Processing (CEP) has become increasingly important for tracking and monitoring complex event anomalies and trends in event streams emitted from business processes such as supply chain management to online ... -
Optimizing decomposition of software architecture for local recovery
Sözer, Hasan; Tekinerdoğan, B.; Akşit, M. (Springer Science+Business Media, 2013-06)The increasing size and complexity of software systems has led to an amplified number of potential failures and as such makes it harder to ensure software reliability. Since it is usually hard to prevent all the failures, ... -
Optimizing offer sets based on user profiles
Atahan, Pelin; Johar, M.; Sarkar, S. (Social Science Research Network, 2009)Personalization and recommendation systems are being increasingly utilized by ecommerce firms to provide personalized product offerings to visitors at the firms’ web sites. These systems often recommend, at each interaction, ...
Share this page
