Browsing Faculty of Engineering by Title
Now showing items 2216-2235 of 3112
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Relay-assisted OFDM for ultraviolet communications: performance analysis and optimization
(IEEE, 2017)Ultraviolet (UV) communication enables non-line-of-sight (NLOS) outdoor wireless connectivity and is particularly desirable to relax or eliminate pointing and tracking requirements of infrared links. In comparison to ... -
Relay-assisted OFDM transmission for indoor visible light communication
(IEEE, 2014)In this study, we investigate a relay-assisted visible light communication (VEC) system where an intermediate light source cooperates with the main light source. Specifically, we consider two light sources in an office ... -
Relay-assisted OFDM-based visible light communications
(IEEE, 2015-10)In this study, we investigate a relay-assisted visible light communication (VLC) system where an intermediate light source cooperates with the main light source. Specifically, we consider two light sources in an office ... -
Relay-assisted OFDM-based visible light communications over multipath channels
(IEEE, 2015-07)In this paper, we investigate the performance of relay-assisted visible light communication (VLC) system over multipath channels. We consider an indoor environment where the ceiling light serves as the information source ... -
Relief aid provision to en route refugees: Multi-period mobile facility location with mobile demand
(Elsevier, 2022-09-01)Many humanitarian organizations aid en route refugee groups who are on their journey to cross borders using mobile facilities and need to decide the number and routes of the facilities. We define a multi-period facility ... -
Remote dbugging for containerized applications in edge computing environments
(IEEE, 2019)Edge Computing (EC) became popular again with the rise of IoT, Cloud Computing, and Industry 4.0. In this paper, difficulties of application development in the EC environment are discussed and a container-based solution ... -
Renkli̇ Gauss gürültülü seyrek sualtı akusti̇k kanalların kesti̇ri̇mi̇
(IEEE, 2012)İşbirlikli sualtı kablosuz iletişim sistemleri konusu son yıllarda büyük önem kazanmıştır. Özellikle sualtı akustik kanalların seyrek (sparse) olma özelliği taşıması ve sisteme giren toplamsal gürültünün renkli Gauss ... -
Reproducing failures based on semiformal failure scenario descriptions
(Springer International Publishing, 2017)Due to the increasing size and complexity of software systems, it becomes hard to test these systems exhaustively. As a result, some faults can be left undetected. Undetected faults can lead to failures in deployed systems. ... -
Reputation mechanism for e-commerce in virtual reality environments
(Elsevier, 2014)The interest in 3D technology and virtual reality (VR) is growing both from academia and industry, promoting the quick development of virtual marketplaces (VMs) (i.e. e-commerce systems in VR environments). VMs have inherited ... -
Resolving 500 nm axial separation by multi-slice X-ray ptychography
(International Union of Crystallography, 2019-03)Multi-slice X-ray ptychography offers an approach to achieve images with a nanometre-scale resolution from samples with thicknesses larger than the depth of field of the imaging system by modeling a thick sample as a set ... -
Resonance-filtering combo system for continuous wireless charging range coverage
(Cambridge University Press, 2020-09)Distribution of wireless power charging field uniformly on a large area pad is critical for power receivers, particularly for wearable devices, wherein small form factor coils are involved. Since the receiver coil size is ... -
Resource allocation for downlink OFDMA in underwater visible light communications
(IEEE, 2019-06)As a wireless connectivity solution with low latency and high capacity, visible light communication (VLC) is particularly attractive for high-speed underwater applications such as image or real-time video transmission. In ... -
Resource allocation for visible light communication systems using simulated annealing based on a problem-specific neighbor function
(IEEE, 2019)In this paper, we consider a visible light communication (VLC) system with direct current-biased orthogonal frequency division multiplexing (DC-OFDM) and investigate resource allocation for a multi-user environment. Based ... -
Results of the first annual human-agent league of the automated negotiating agents competition
(The ACM Digital Library, 2018)We present the results of the first annual Human-Agent League of ANAC. By introducing a new human-agent negotiating platform to the research community at large, we facilitated new advancements in human-aware agents. This ... -
Rethinking frequency opponent modeling in automated negotiation
(Springer International Publishing, 2017)Frequency opponent modeling is one of the most widely used opponent modeling techniques in automated negotiation, due to its simplicity and its good performance. In fact, it outperforms even more complex mechanisms like ... -
Rethinking temporal demand data to reduce distribution transformer losses: A case study from a Turkish DSO
(IEEE, 2021)With the increase in digital measurement and monitoring devices in the Turkish electricity grid, the possibilities of processing the obtained data and revealing meaningful information are also increasing. In this project, ... -
A retrospective view on‘‘3-dimensional radiation in absorbing, emitting and scattering media using discrete-ordinates approximation’’by J.S.Truelove
(Elsevier, 2010-06)Discrete-ordinates (DO) approximations to the radiative transfer equation in three- dimensional enclosures have extensively been used during the last three decades. The 1988 paper by Truelove [1] is one of the pioneering ... -
Revealing the performance of bio-MOFs for adsorption-based uremic toxin separation using molecular simulations
(Elsevier, 2022-03-01)Recently, adsorption-based separation methods have been used to remove uremic toxins from the blood of chronic kidney patients. Among the porous adsorbents, metal organic frameworks (MOFs) are recognized as potential ... -
Reversing image signal processors by reverse style transferring
(Springer, 2023)RAW image datasets are more suitable than the standard RGB image datasets for the ill-posed inverse problems in low-level vision, but not common in the literature. There are also a few studies to focus on mapping sRGB ... -
Review of the main factors controlling the fracture toughness and impact strength properties of natural composites
(IOP Publishing, 2019-02)The main critical factors, which have direct influence on the fracture toughness and imapct strength properties of natural fibers composites, are reviewed in details in this paper. Considering the vast body of literature ...
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