William Risto, Craig Welch, John O'Connor, Peter Snowdon, Andrew Smithers, Mark Layton, K.W. Emerson, Stewart Leu, Stephen Wright,
... Ruhr You are not alone Micro, nano, pico, femto Measuring atoms Nokia The fly, the gas and ...
1995 - Gale Group | The Economist
Zubin Bharucha, Andreas Saul, Gunther Auer, Harald Haas,
Femto-cells consist of user-deployed Home Evolved NodeBs (HeNBs) that promise substantial gains in system spectral ... destructive interference to the system, both, in the femto and macro layers. An especially critical scenario is a closed-access femto-cell, cochannel deployed with a macro-cell, which ... are not permitted to hand over to the femto-cell. In order to maintain reliable service of ... cells, it is imperative to mitigate the destructive femto-cell to macro-cell interference. The contribution in ...
Tópico(s): Wireless Communication Networks Research
2010 - Springer Nature | EURASIP Journal on Wireless Communications and Networking
Bo Liu, Mingsheng Zhang, Shengkai Yu, L. Gonzaga, Yuet Sim Hor, Jianfeng Xu,
... size from its current pico form-factor to femto form-factor seems to be a promising approach ... such flying height modulation. However, discussions on the femto slider are still limited to theoretical analysis and ... efforts in the design and fabrication of the femto sliders plus the comparative study of the dynamic performance between the femto and the pico sliders. Results indicate that the femto sliders are of smaller flying height modulation, compared with the pico sliders, if both the femto and the pico sliders are of similar air- ...
Tópico(s): Tribology and Lubrication Engineering
2003 - IEEE Magnetics Society | IEEE Transactions on Magnetics
... of the heterogeneous network such as macro-cells, femto-cells, etc. However, the dynamic nature of heterogeneous ... of transmitters (e.g., macro-, micro-, pico-, and femto-cells) and provide a general theoretical analysis of ... a macro-cell or an open-access (OA) femto-cell in the presence of Closed Subscriber Group (CSG) femto-cells. We show that this probability depends only ... densities and transmit powers of the macro- and femto-cells, the fraction of femto-cells operating in OA vs. Closed Subscriber Group ( ...
Tópico(s): Wireless Communication Networks Research
2012 - Institute of Electrical and Electronics Engineers | IEEE Journal on Selected Areas in Communications
Vanlin Sathya, Arun Ramamurthy, S. Sandeep Kumar, Bheemarjuna Reddy Tamma,
Femtos, with frequency reuse one, can be deployed in hotspots, offices and residences alike to provide high ... reduce traffic load on Macro. However, arbitrarily deployed Femtos could decrease SINR significantly because of inter-cell ... the building. Hence, to attain a desirable SINR Femtos have to be placed efficiently. At the same time, minimizing the power leakage from indoor Femtos in order to improve the SINR of outdoor ... the same SINR as that of Full Power Femto scheme (i.e., Femto transmits with maximum power) ...
Tópico(s): Advanced Wireless Communication Technologies
2015 - Elsevier BV | Computer Communications
Mahima Mehta, Nirbhay Rane, Abhay Karandikar, Muhammad Ali Imran, B.G. Evans,
... resource management (RRM) issues in a heterogeneous macro‐femto network. The objective of femto deployment is to improve coverage, capacity, and experienced ... users. The location and density of user‐deployed femtos is not known a‐priori . This makes interference ... strategies available in the literature for heterogeneous macro‐femto network. Then, we propose a self‐organized resource ... an orthogonal frequency division multiple access based macro‐femto network to mitigate co‐layer interference in the ... of 10 percentile user throughput and fairness to femto users. The performance of AFR with power control ...
Tópico(s): Advanced Wireless Network Optimization
2014 - Wiley | Wireless Communications and Mobile Computing
Doru Calin, Holger Claußen, Hüseyin Uzunalioğlu,
... served by the macro network in joint macro-femto deployments. This in turn translates into potentially better ... for quantifying macro offloading benefits in joint macro-femto deployments. A baseline configuration where all users (indoor ... first. The analysis is followed through joint macro-femto deployments, where femtocells serve indoor users. Through comparison of the baseline configuration and the joint macro-femto analysis, we quantify the benefits of the joint macro-femto deployment.
Tópico(s): Age of Information Optimization
2010 - Institute of Electrical and Electronics Engineers | IEEE Communications Magazine
Mugen Peng, Xiaoguang Zhang, W. Wang,
The femto-cell base station (BS) is presented as a promising consumer electronic device to provide the wireless multi- ... family or office environments. Radio resources allocated to femto-cell and macro-cell users should be made ... to reduce interferences. The radio resources for the femto-cell and macro-cell users can also be ... the path loss exponent and the number of femto-cells in a macro-cell. Furthermore, the average distance between the macro-cell and the femto-cell BSs has significant impact on the user ...
Tópico(s): Cooperative Communication and Network Coding
2011 - Institution of Engineering and Technology | IET Communications
Hassan Hashemi, Mohammad Miraftab, Reza Ghaffari, Soheila Asgari,
... results of femtosecond-assisted laser in situ keratomileusis (femto-LASIK) and photorefractive keratectomy with mitomycin C (PRK- ... and −8.04±1.70 D in the femto-LASIK and PRK-MMC groups, respectively ( P =0. ... improving trend, but it was better in the femto-LASIK group ( P =0.026). CDVA in the ... remained similarly unchanged ( P =0.170). For the femto-LASIK and PRK-MMC groups, the safety indices ... CS18 showed a significantly greater decrease in the femto-LASIK group compared with the PRK-MMC group ( ... groups except ocular coma, which increased in the femto-LASIK group ( P =0.041). Conclusion: Femto-LASIK ...
Tópico(s): Glaucoma and retinal disorders
2015 - Lippincott Williams & Wilkins | Eye & Contact Lens Science & Clinical Practice
Ishan Budhiraja, Neeraj Kumar, Sudhanshu Tyagi, Sudeep Tanwar, Mohsen Guizani,
... state information. SWIPT enhances the transmission power of Femto users and NOMA improves the spectral efficiency. Therefore, SWIPT and NOMA at Femto base station are integrated to improve the energy ... allocation and power control. The preference list of Femto users and macro users is developed on the basis of their energy harvested from the Femto base station and macro base station, respectively. Then, to optimize the power of a Femto base station, a successive convex approximation low complexity ...
Tópico(s): Advanced MIMO Systems Optimization
2020 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology
Jacques M. Bahi, Wiem Elghazel, Christophe Guyeux, Mohammed Haddad, Mourad Hakem, Kamal Medjaher, Noureddine Zerhouni,
... Get access J. Bahi, J. Bahi 1DISC Laboratory, Femto-st -UMR CNRS, University of Franche-Comté, Besançon, ... Google Scholar W. Elghazel, W. Elghazel * 2AS2M Laboratory, Femto-st -UMR CNRS, University of Franche-Comté, Besançon, France *Corresponding author: wiem.elghazel@femto-st.fr Search for other works by this ... Google Scholar C. Guyeux, C. Guyeux 1DISC Laboratory, Femto-st -UMR CNRS, University of Franche-Comté, Besançon, ... Google Scholar M. Hakem, M. Hakem 1DISC Laboratory, Femto-st -UMR CNRS, University of Franche-Comté, Besançon, ...
Tópico(s): Fault Detection and Control Systems
2016 - Oxford University Press | The Computer Journal
Imola Ratkay-Traub, István Ferincz, Tibor Juhász, Ron M. Kurtz, Ronald R. Krueger,
... IntraLase Corporation) was performed in partially sighted eyes. Femto-LASIK treatment was performed on 46 eyes up ... 00 D; 16 patients received intracorneal ring segments (Femto-ICRS); 5 patients each with one highly myopic ... or hyperopic eye had intrastromal ablation (ISPRK). In Femto-LASIK, excimer laser ablation was done under the flap. In Femto-ICRS, ring segments were introduced into the laser- ... difference was found between the results obtained with Femto-LASIK and a standard microkeratome. No refractive effects ...
Tópico(s): Glaucoma and retinal disorders
2003 - Slack Incorporated (United States) | Journal of Refractive Surgery
Shu‐ping Yeh, Shilpa Talwar, Seong-Choon Lee, Heechang Kim,
... low-power and low-cost base station devices, Femto-APs, on the existing cellular network, where each Femto-AP provides high-speed wireless connection to subscribers within a small range. In particular, Femto-APs can be used to serve indoor users, ... a WiMAX network deploying both macro BSs and Femto-APs, where it is assumed that Femto-APs have wired backhaul such as cable or ... spatial reuse of the wireless spectrum. In addition, Femto-APs improve indoor coverage, where the macro BS ...
Tópico(s): Cooperative Communication and Network Coding
2008 - Institute of Electrical and Electronics Engineers | IEEE Communications Magazine
Yanjiao Chen, Jin Zhang, Qian Zhang,
... the cross-tier interference between macro link and femto link becomes a major factor which greatly impacts ... to as macro users) to access the nearby femto base station (BS) while reserving certain resource for registered home users (referred to as femto users), improving overall network capacity. However, to successfully leverage hybrid access is challenging because the femto holders (FHs) are selfish, unwilling to share their femto facilities and spectrum resource with macro users without ... macro users. FHs decide the resource allocation among femto and macro users according to the amount of ...
Tópico(s): Wireless Networks and Protocols
2012 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Wireless Communications
Minoru Tomita, Nakamura, Yukawa, Sotoyama,
... situ keratomileusis (LASIK) with flap creation using the Femto LDV and IntraLase™ FS60 femtosecond lasers. Methods: A ... consecutive myopic eyes had LASIK performed using either Femto LDV or IntraLase FS60 for flap creation. The ... s U -test was used. Results: In the Femto LDV group with 514 eyes, 42 (8.17%) ... fewer incidences of low level DLK when using Femto LDV, neither femtosecond laser induced high levels of ... at flap creation for LASIK. Keywords: LASIK, Ziemer, Femto LDV, DLK, IntraLase FS60, femtosecond laser
Tópico(s): Glaucoma and retinal disorders
2013 - Dove Medical Press | Clinical ophthalmology
Tim Schultz, Stephanie C. Joachim, Mathias Kuehn, H. Burkhard Dick,
... 4.0 pg/mL [n = 22], femtosecond laser [femto] = 182.1 ± 38.1 pg/mL [n = 22], ... 17.5 ± 1.4 pg/mL [n = 37], femto: 377.1 ± 83.6 pg/ mL [n = 35], ... 4.5 ± 1.9 pg/mL [n = 13], femto: 19.2 ± 2.5 pg/mL [n = 20], ... 11.3 ± 1.6 pg/mL [n = 35], femto: 60.3 ± 16.1 pg/mL [n = 36], ... incision, suction time, or laser time in the femto groups and prostaglandin/prostaglandin E 2 level. CONCLUSIONS: ... anti-inflammatory drugs to maintain mydriasis before undergoing femto-second laser treatment for cataract surgery. [ J Refract ...
Tópico(s): Corneal surgery and disorders
2013 - Slack Incorporated (United States) | Journal of Refractive Surgery
Juhee Kim, Wha Sook Jeon, Dong Geun Jeong,
... networks where a large number of open-access femto base stations (BSs) are deployed in a public ... as airport, shopping mall, etc. In such areas, femto BSs are underutilized during most of the operation ... Thus, if we can put some of the femto BSs to sleep, the EE, which is defined ... enhanced. In this paper, the effect of the femto BS-sleeping ratio on the EE is quantitatively ... a stochastic geometry-based model and the optimal femto BS-sleeping ratio to maximize the EE is ... of the designated femtocell deployment area. The optimal femto BS-sleeping ratio can be effectively used to ...
Tópico(s): Millimeter-Wave Propagation and Modeling
2015 - IEEE Communications Society | IEEE Communications Letters
S. M. Shahrear Tanzil, Omid Namvar Gharehshiran, Vikram Krishnamurthy,
This paper studies distributed formation of femto-clouds in a UMTS LTE network. Femtocell access points (FAPs) are equipped with computational resources. They share their resources with neighboring FAPs ... their contribution in performing computational tasks in the femto-cloud. The resource sharing problem is formulated as ... in a distributed fashion. In such an optimal femto-cloud structure, the local computational resources of FAPs ... maximally exploited, yet the incentive earned by each femto-cloud is divided among the FAPs in a ...
Tópico(s): Advanced MIMO Systems Optimization
2016 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Cloud Computing
Kaitlin T. Wozniak, Noah Elkins, Daniel R. Brooks, Daniel E. Savage, Scott MacRae, Jonathan Ellis, Wayne H. Knox, Krystel R. Huxlin,
... Blue-IRIS or femtosecond laser in-situ keratomileusis (femto-LASIK) on corneal cell viability. Blue-IRIS was ... was inscribed into another four cat eyes using femto-LASIK. Six hours later, all corneas were processed ... the laser focal zone in the stroma. In femto-LASIK, photoablation removed 14 μm of anterior stroma, ... in addition, TUNEL-positive cells clustered across the femto-flap, the epithelium at the flap edges and ... IRIS focal zones, but were completely absent from femto-LASIK-treated corneas. Unlike femto-LASIK, Blue-IRIS ...
Tópico(s): Optical Coherence Tomography Applications
2017 - Elsevier BV | Experimental Eye Research
Máximo Morales-Céspedes, Jorge Plata-Chaves, Dimitris Toumpakaris, Syed A. Jafar, Ana García Armada,
... cognitive blind interference alignment (BIA) scheme for macro-femto two-tier networks where the users are equipped ... the interference caused by the transmission at the femto-tier as noise. The proposed scheme does not ... transmitter or data sharing between the macro- and femto-tiers. An outer bound of the DoF is derived for the considered macro-femto network. It is demonstrated that the proposed scheme ... BIA can achieve better sum rates for macro-femto networks for femtocells subject to different levels of ...
Tópico(s): Advanced Wireless Communication Techniques
2017 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Signal Processing
Daniel Pilger, Christoph von Sonnleithner, Eckart Bertelmann, Anna-Karina B. Maier, Antonia M. Joussen, Necip Torun,
... femtosecond laser-assisted DR of the same diameter (femto-DR) in 22 pseudophakic patients requiring DMEK. We ... 2%-17%) in the y-diameter. In the femto group, the median error in the respective x ... range 7.6-18 mm2) than in the femto group (2.5 mm2, range 1.2-5. ... DR and 17% (range 6%-38%) in the femto-DR group (p=0.351). The median visual ... logMAR (range 0.3-0 logMAR) in the femto group (p=0.461). Three rebubblings were required in the manual group, whereas the femto group required only one.The higher precision of ...
Tópico(s): Intraocular Surgery and Lenses
2018 - BMJ | BMJ Open Ophthalmology
O. A. Klokova, С. Н. Сахнов, M.S. Geydenrikh, R. O. Damashauskas,
... complex myopic astigmatism correction using ReLEx SMILE or Femto-LASIK techniques have been well established. The purpose ... of life (QoL) outcomes following ReLEx SMILE or Femto-LASIK procedures in parallel with functional vision and ... which 56 underwent ReLEx SMILE and 62 underwent Femto-LASIK surgery for correction of myopic astigmatism. All ... After laser correction of complex myopic astigmatism using Femto-LASIK and ReLEx SMILE methods, the overall QoL ... in patients undergoing ReLEx SMILE in comparison to Femto-LASIK. Long-term results from the study demonstrated ...
Tópico(s): Glaucoma and retinal disorders
2019 - Dove Medical Press | Clinical ophthalmology
Junjie Piao, Woong-Joo Whang, Choun‐Ki Joo,
... myopia using femtosecond laser-assisted in situ keratomileusis (femto-LASIK) and flap-off epipolis LASIK (epi-LASIK). ... depending on the technique used for refractive surgery. Femto-LASIK and flap-off epi-LASIK flaps were ... groups); it was significant better in UDVA in femto-LASIK than flap-off epi-LASIK, 0.03 ± 0.06 logMAR (femto-LASIK) and 0.54 ± 0.31 logMAR (flap- ... 1 day postoperatively; 0.02 ± 0.05 logMAR (femto-LASIK) and 0.14 ± 0.13 logMAR (flap- ... was greater in flap-off epi-LASIK than femto-LASIK: 0.626 ± 0.232 μm and 0. ...
Tópico(s): Intraocular Surgery and Lenses
2020 - BioMed Central | BMC Ophthalmology
Lei Yang, Jianming Guo, Chengguang Fan, Xin Song, Shuai Wu, Yong Zhao,
A femto-satellite usually has ultra low cost and light weight. Thus, a cluster of femto-satellites is able to be deployed massively in ... infrastructures and thus can make it possible for femto-satellites to collect data of distributed measurement. This paper introduces Stardust, a cluster of femto-satellites, to exploit their capacity of distributed measurement ... proved to be a good reference for future femto-satellite design and space distributed measurement systems.
Tópico(s): Space Satellite Systems and Control
2020 - Elsevier BV | Acta Astronautica
Zubin Bharucha, Harald Haas, I. Cosovic, Gunther Auer,
This paper studies the impact of femto-cell underlay deployment that share radio frequency resources with urban macro-cells. Due to the random and uncoordinated deployment, femto-cells potentially cause destructive interference to macro-cells and vice versa. On the other hand, femto-cells promise to substantially enhance the spectral efficiency ... of radio resources. The performance of systems with femto base station (FBS) deployment is compared to a ... the impact of closed-access and open-access femto-cell operation is examined. It is demonstrated that ...
Tópico(s): Wireless Communication Networks Research
2009 - Springer Science+Business Media | Lecture notes in electrical engineering
Brian A. Davies, Justin D. Topp, Agnel Sfeir, David J. Katzmann, Darren S. Carney, Gregory G. Tall, A S Friedberg, Li Deng, Zhijian J. Chen, Bruce Horazdovsky,
... University of California at San Diego). SuperSignal West Femto maximum sensitivity substrate was purchased from Pierce. FM4– ... conjugated antibody (1:2,000), and SuperSignal West Femto maximum sensitivity substrate (1:4 in 50 mm ... rabbit antibody (1: 2,000), and SuperSignal West Femto maximum sensitivity substrate (1:4 in 50 mm ... mouse antibody (1:2,000), and SuperSignal West Femto maximum sensitivity substrate (1:5 in 50 mm ... mouse antibody (1:2,000), and SuperSignal West Femto maximum sensitivity substrate (1:1 in 50 mm ...
Tópico(s): Pancreatic function and diabetes
2003 - Elsevier BV | Journal of Biological Chemistry
Femto cell systems are promising to provide cost-effective high-bandwidth service in wireless cellular systems. However, ... tier co-channel interference between macro cells and femto cells. Simulations were conducted to study the impact of femto cells on the macro cells regarding throughput and ... proposed method can be a solution to deploy femto cell systems in macro networks.
Tópico(s): Wireless Communication Networks Research
2008 - Institute of Electrical and Electronics Engineers | IEEE International Performance, Computing, and Communications Conference
... Medical Optics) and a prototype model of the Femto LDV femtosecond laser (Ziemer Ophthalmic Systems AG). The ... IntraLase FS laser and 38 seconds for the Femto LDV laser. With both lasers, the standard deviation ... and 2.0 +/- 0.4 microm with the Femto LDV. Neither laser showed significant thermal or mechanical ... The laser cuts of the IntraLase FS and Femto LDV femtosecond lasers were equally smooth and of ...
Tópico(s): Glaucoma and retinal disorders
2008 - Lippincott Williams & Wilkins | Journal of Cataract & Refractive Surgery
Yann Meyer, Manuel Collet, P. Delobelle,
... Applications to the beams Y. Meyer, Y. Meyer FEMTO-ST dép. LMARC, UMR 6174, 24 rue de ... Author M. Collet manuel.collet@univ-fcomte.fr FEMTO-ST dép. LMARC, UMR 6174, 24 rue de ... more papers by this authorP. Delobelle, P. Delobelle FEMTO-ST dép. LMARC, UMR 6174, 24 rue de ... papers by this author Y. Meyer, Y. Meyer FEMTO-ST dép. LMARC, UMR 6174, 24 rue de ... Author M. Collet manuel.collet@univ-fcomte.fr FEMTO-ST dép. LMARC, UMR 6174, 24 rue de ... more papers by this authorP. Delobelle, P. Delobelle FEMTO-ST dép. LMARC, UMR 6174, 24 rue de ...
Tópico(s): Advanced MEMS and NEMS Technologies
2007 - Wiley | Structural Control and Health Monitoring
Xiaoli Chu, Yuhua Wu, David López‐Pérez, Xiaofeng Tao,
... with overlaid femtocells. In spectrum-sharing macro and femto networks, inter-cell interference caused by different transmission ... services cannot be guaranteed to either macro or femto users. In this paper, based on a thorough ... frequency division multiple access (OFDMA) based macro and femto networks, we devise a decentralized strategy for an ... guarantee reliable DL services in targeted macro and femto service areas while providing superior spatial reuse, for ...
Tópico(s): Wireless Communication Networks Research
2011 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Wireless Communications