Browsing Faculty of Engineering by Title
Now showing items 2212-2231 of 3112
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Relaxations and exact solution of the variable sized bin packing problem
(Springer Science+Business Media, 2011-03)We address a generalization of the classical one-dimensional bin packing problem with unequal bin sizes and costs. We investigate lower bounds for this problem as well as exact algorithms. The main contribution of this ... -
Relay selection for cooperative underwater acoustic communication systems
(IEEE, 2012)In this paper, we consider a multi-carrier and multi-relay underwater acoustic communication (UWAC) system and investigate the relay selection problem. Our channel model is built on an aggregation of both large-scale path ... -
Relay selection in dual-hop vehicular networks
(IEEE, 2011-02)In this letter, we investigate cooperative diversity with relay selection over cascaded Rayleigh fading channels. In particular, we analyze the performance of a relay selection scheme for cooperative vehicular networks ... -
Relay-assisted OFDM for NLOS ultraviolet communication
(2015)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. The main two degrading ... -
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, ...
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