Download or read book The Journal of the Society of Automotive Engineers written by and published by . This book was released on 1927 with total page 1598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogue of the Michigan State Library written by Michigan State Library and published by . This book was released on 1875 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The English Catalogue of Books annual written by and published by . This book was released on 1892 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1898-1968 include a directory of publishers.
Download or read book Transactions of the International Engineering Congress 1915 written by and published by . This book was released on 1916 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by University of Missouri at Rolla and published by . This book was released on 1918 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogue written by New South Wales Free Public Library, Sydney and published by . This book was released on 1897 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The English Catalogue of Books written by Sampson Low and published by . This book was released on 1901 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the Society of Automotive Engineers written by and published by . This book was released on 1928 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 30-54 (1932-46) issued in 2 separately paged sections: General editorial section and a Transactions section. Beginning in 1947, the Transactions section is continued as SAE quarterly transactions.
Download or read book Proceedings of the London Mathematical Society written by London Mathematical Society and published by . This book was released on 1909 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Papers presented to J. E. Littlewood on his 80th birthday" issued as 3d ser., v. 14 A, 1965.
Download or read book Proceedings of the Academy of Natural Sciences of Philadelphia written by Academy of Natural Sciences of Philadelphia and published by . This book was released on 1881 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publications of the Academy of Natural Sciences of Philadelphia": v. 53, 1901, p. 788-794.
Download or read book Embedded and Ubiquitous Computing EUC 2005 written by Laurence T. Yang and published by Springer Science & Business Media. This book was released on 2005-11-24 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to the proceedings of the 2005 IFIP International Conference on - bedded and Ubiquitous Computing (EUC 2005), which was held in Nagasaki, Japan, December 6–9, 2005. Embedded and ubiquitous computing is emerging rapidly as an exciting new paradigm to provide computing and communication services all the time, - erywhere. Its systems are now pervading every aspect of life to the point that they are hidden inside various appliances or can be worn unobtrusively as part of clothing and jewelry. This emergence is a natural outcome of research and technological advances in embedded systems, pervasive computing and c- munications, wireless networks, mobile computing, distributed computing and agent technologies, etc. Its tremendous impact on academics, industry, gove- ment, and daily life can be compared to that of electric motors over the past century, in fact it but promises to revolutionize life much more profoundly than elevators, electric motors or even personal computers. The EUC 2005 conference provided a forum for engineers and scientists in academia, industry, and government to address profound issues including te- nical challenges, safety, and social, legal, political, and economic issues, and to present and discuss their ideas, results, work in progress, and experience on all aspects of embedded and ubiquitous computing.
Download or read book Blind Massive MIMO Base Stations written by Marcus Karlsson and published by Linköping University Electronic Press. This book was released on 2018-08-15 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Massive MIMO (Multiple-Input--Multiple-Output) is a cellular-network technology in which the base station is equipped with a large number of antennas and aims to serve several different users simultaneously, on the same frequency resource through spatial multiplexing. This is made possible by employing efficient beamforming, based on channel estimates acquired from uplink reference signals, where the base station can transmit the signals in such a way that they add up constructively at the users and destructively elsewhere. The multiplexing together with the array gain from the beamforming can increase the spectral efficiency over contemporary systems. One challenge of practical importance is how to transmit data in the downlink when no channel state information is available. When a user initially joins the network, prior to transmitting uplink reference signals that enable beamforming, it needs system information---instructions on how to properly function within the network. It is transmission of system information that is the main focus of this thesis. In particular, the thesis analyzes how the reliability of the transmission of system information depends on the available amount of diversity. It is shown how downlink reference signals, space-time block codes, and power allocation can be used to improve the reliability of this transmission. In order to estimate the uplink and downlink channels from uplink reference signals, which is imperative to ensure scalability in the number of base station antennas, massive MIMO relies on channel reciprocity. This thesis shows that the principles of channel reciprocity can also be exploited by a jammer, a malicious transmitter, aiming to disrupt legitimate communication between two single-antenna devices. A heuristic scheme is proposed in which the jammer estimates the channel to a target device blindly, without any knowledge of the transmitted legitimate signals, and subsequently beamforms noise towards the target. Under the same power constraint, the proposed jammer can disrupt the legitimate link more effectively than a conventional omnidirectional jammer in many cases. Massiv MIMO (eng: Multiple-Input--Multiple-Output) är en teknologi inom cellulär kommunikation som förutspås ha en betydande roll i framtida kommunikationssystem på grund av de många fördelar som denna teknologi medför. Massiv MIMO innebär att basstationen har ett stort antal antenner där varje antenn kan styras individuellt. De många antennerna gör att basstationen kan rikta de elektromagnetiska signalerna på ett sådant sätt att de förstärks på positioner där användarna befinner sig men släcks ut i övrigt. Detta i sin tur innebär att flera användare kan betjänas samtidigt, på samma frekvensband utan att de stör varandra. Detta medför att massiv MIMO kan erbjuda en högre datatakt än nutida cellulära kommunikationssystem. För att kunna rikta signalerna på ett effektivt sätt måste basstationen känna till kanalen, eller utbredningsmiljön, mellan sig själv och de användare som betjänas. När en användare precis kommer in i systemet vet basstationen inte var användaren befinner sig, men måste likväl tillgodose användaren med information om hur systemet fungerar. Nu måste alltså basstationen kommunicera med användaren, utan möjligheten att kunna rikta signalen på ett effektivt sätt. Det är detta problem som vi i huvudsak studerar i denna avhandling: hur man kan utnyttja de många antennerna på basstationen för att skicka information till användarna utan någon kanalkännedom. Vi studerar även hur en gruppantenn med många antenner, baserad på samma teknologi som massiv MIMO, kan användas som en störsändare. Störsändarens mål är att hindra kommunikationen mellan två enheter på ett effektivt sätt. En störsändare med ett stort antal antenner kan, utan någon kännedom av vad de två enheterna skickar, i många fall prestera bättre än en konventionell störsändare på grund av att störsignalen kan riktas mot en specifik enhet.
Download or read book British Medical Journal written by and published by . This book was released on 1894 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Literary Philosophical Society of Liverpool written by Literary and Philosophical Society of Liverpool and published by . This book was released on 1869 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ship Resistance and Propulsion written by Anthony F. Molland and published by Cambridge University Press. This book was released on 2011-08-08 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by experts in the ship design field, this book provides a comprehensive approach to evaluating ship resistance and propulsion.
Download or read book Medical Image Computing and Computer Assisted Intervention MICCAI 99 written by Chris Taylor and published by Springer. This book was released on 2006-09-10 with total page 1331 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI'99, held in Cambridge, UK, in September 1999. The 133 revised full papers presented were carefully reviewed and selected from a total of 213 full-length papers submitted. The book is divided into topical sections on data-driven segmentation, segmentation using structural models, image processing and feature detection, surfaces and shape, measurement and interpretation, spatiotemporal and diffusion tensor analysis, registration and fusion, visualization, image-guided intervention, robotic systems, and biomechanics and simulation.
