Download or read book P1531 draft guide for application and specification of harmonic filters written by IEEE. and published by . This book was released on 2001 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IEEE P1531 D4 March 2019 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IEEE Guide for Application and Specification of Harmonic Filters written by IEEE Power Engineering Society. Transmission and Distribution Committee and published by . This book was released on 2003 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IEEE Guide for Application and Specification of Harmonic Filters written by and published by . This book was released on 2003 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measures for Progress written by Rexmond Canning Cochrane and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Big Change written by Frederick Lewis Allen and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Democracy s Signature written by Danny Fingeroth and published by The Rosen Publishing Group, Inc. This book was released on 2003-12-15 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aging inventor and statesman Benjamin Franklin participates in the debate surrounding the American colonies' potential break from Great Britain, ultimately helping to write and signing the Declaration of Independence.

Download or read book Industrial Power Systems Handbook written by Donald Beeman and published by McGraw-Hill Companies. This book was released on 1955 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Abstracts of the 1971 1974 United States and Foreign Open Literature on Noise written by E. P. Bergman and published by . This book was released on 1976 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of International Standards written by Sophie J. Chumas and published by . This book was released on 1974 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamentals of Machine Design written by Waldemar Karaszewski and published by Trans Tech Publications Ltd. This book was released on 2011-09-21 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters BCI (WoS). A forum of researchers, educators and engineers involved in various aspects of Machine Design provided the inspiration for this collection of peer-reviewed papers. The resultant dissemination of the latest research results, and the exchange of views concerning the future research directions to be taken in this field will make the work of immense value to all those having an interest in the topics covered. The book reflects the cooperative efforts made in seeking out the best strategies for effecting improvements in the quality and the reliability of machines and machine parts and for extending their fields of application.

Download or read book Massive MIMO written by Hien Quoc Ngo and published by Linköping University Electronic Press. This book was released on 2015-01-16 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last ten years have seen a massive growth in the number of connected wireless devices. Billions of devices are connected and managed by wireless networks. At the same time, each device needs a high throughput to support applications such as voice, real-time video, movies, and games. Demands for wireless throughput and the number of wireless devices will always increase. In addition, there is a growing concern about energy consumption of wireless communication systems. Thus, future wireless systems have to satisfy three main requirements: i) having a high throughput; ii) simultaneously serving many users; and iii) having less energy consumption. Massive multiple-input multiple-output (MIMO) technology, where a base station (BS) equipped with very large number of antennas (collocated or distributed) serves many users in the same time-frequency resource, can meet the above requirements, and hence, it is a promising candidate technology for next generations of wireless systems. With massive antenna arrays at the BS, for most propagation environments, the channels become favorable, i.e., the channel vectors between the users and the BS are (nearly) pairwisely orthogonal, and hence, linear processing is nearly optimal. A huge throughput and energy efficiency can be achieved due to the multiplexing gain and the array gain. In particular, with a simple power control scheme, Massive MIMO can offer uniformly good service for all users. In this dissertation, we focus on the performance of Massive MIMO. The dissertation consists of two main parts: fundamentals and system designs of Massive MIMO. In the first part, we focus on fundamental limits of the system performance under practical constraints such as low complexity processing, limited length of each coherence interval, intercell interference, and finite-dimensional channels. We first study the potential for power savings of the Massive MIMO uplink with maximum-ratio combining (MRC), zero-forcing, and minimum mean-square error receivers, under perfect and imperfect channels. The energy and spectral efficiency tradeoff is investigated. Secondly, we consider a physical channel model where the angular domain is divided into a finite number of distinct directions. A lower bound on the capacity is derived, and the effect of pilot contamination in this finite-dimensional channel model is analyzed. Finally, some aspects of favorable propagation in Massive MIMO under Rayleigh fading and line-of-sight (LoS) channels are investigated. We show that both Rayleigh fading and LoS environments offer favorable propagation. In the second part, based on the fundamental analysis in the first part, we propose some system designs for Massive MIMO. The acquisition of channel state information (CSI) is very importantin Massive MIMO. Typically, the channels are estimated at the BS through uplink training. Owing to the limited length of the coherence interval, the system performance is limited by pilot contamination. To reduce the pilot contamination effect, we propose an eigenvalue-decomposition-based scheme to estimate the channel directly from the received data. The proposed scheme results in better performance compared with the conventional training schemes due to the reduced pilot contamination. Another important issue of CSI acquisition in Massive MIMO is how to acquire CSI at the users. To address this issue, we propose two channel estimation schemes at the users: i) a downlink "beamforming training" scheme, and ii) a method for blind estimation of the effective downlink channel gains. In both schemes, the channel estimation overhead is independent of the number of BS antennas. We also derive the optimal pilot and data powers as well as the training duration allocation to maximize the sum spectral efficiency of the Massive MIMO uplink with MRC receivers, for a given total energy budget spent in a coherence interval. Finally, applications of Massive MIMO in relay channels are proposed and analyzed. Specifically, we consider multipair relaying systems where many sources simultaneously communicate with many destinations in the same time-frequency resource with the help of a massive MIMO relay. A massive MIMO relay is equipped with many collocated or distributed antennas. We consider different duplexing modes (full-duplex and half-duplex) and different relaying protocols (amplify-and-forward, decode-and-forward, two-way relaying, and one-way relaying) at the relay. The potential benefits of massive MIMO technology in these relaying systems are explored in terms of spectral efficiency and power efficiency.

Download or read book Standards Yearbook written by and published by . This book was released on 1928 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modern Industrial Progress written by Charles Henry Cochrane and published by . This book was released on 1904 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book IEEE Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems written by and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book IEEE Recommended Practice for Emergency and Standby Power Systems for Industrial and Commercial Applications written by Institute of Electrical and Electronics Engineers and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1987-01-01 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IEEE Orange Book presents the recommended engineering practices for the selection and application of emergency and standby power systems. It provides commercial facility designers, operators and owners with guidelines for assuring uninterrupted power.