Mobile Communications

Author by : V. Jeyasri Arokiamary
Languange : en
Publisher by : Technical Publications
Format Available : PDF, ePub, Mobi
Total Read : 86
Total Download : 347
File Size : 54,6 Mb
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Description : Cellular Concept and System Design Fundamentals Wireless Communication : Evolution of mobile communications, Mobile radio systems - Examples, Trends in cellular radio and personal communications.Cellular Concept : Frequency reuse, Channel assignment, Handoff, Interference and system capacity, Tracking and grade of service, Improving coverage and capacity in cellular systems.Mobile Radio Propagation Free space propagation model, Reflection, Diffraction, Scattering, Link budget design, Outdoor propagation models, Indoor propagation models, Small scale multipath propagation, Impulse model, Small scale multipath measurements, Parameters of mobile multipath channels, Types of small scale fading, Statistical models for multipath fading channels.Modulation Techniques and Equalization Modulation Techniques : Minimum shift keying, Gaussian MSK, M-ary QAM, M-ary FSK, Orthogonal frequency division multiplexing, Performance of digital modulation in slow-flat fading channels and frequency selective mobile channels. Equalization : Survey of equalization techniques, Linear equalization, Non-linear equalization, Algorithms for adaptive equalization, Diversity techniques, RAKE receiver.Coding and Multiple Access Techniques Coding : Vocoders, Linear predictive coders, Selection of speech coders for mobile communication, GSM codec, RS codes for CDPD. Multiple Access Techniques : FDMA, TDMA, CDMA, SDMA, Capacity of cellular CDMA and SDMA.Wireless Systems and Standards Second generation and third generation wireless networks and standards, WLL, Bluetooth, AMPS, GSM, IS-95 and DECT.


Sense Of Their Duty

Author by : Andrew Holman
Languange : en
Publisher by : McGill-Queen's Press - MQUP
Format Available : PDF, ePub, Mobi
Total Read : 94
Total Download : 806
File Size : 49,9 Mb
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Description : Industrial change, the expansion of government at all levels, and population growth all contributed to profound alterations in Ontario's social structure between the 1850s and the 1890s. The changing environment created new opportunities, new wealth, and new authority. In urbanizing Ontario, an identifiable and self-identified middle class emerged between the idle rich and the perennial working class. Using the towns of Galt and Goderich as case studies, Andrew Holman shows how middle-class identities were formed at work. He shows how businessmen, professionals, and white-collar workers developed a new sense of authority that extended beyond the workplace. As local electors, members of voluntary associations and reform societies, and breadwinners, middle-class men set standards of proper and expected behavior for themselves and others, standards for respectable behavior that continued to enjoy currency and relevance throughout the twentieth century.


Digital Communication

Author by : J.S.Chitode
Languange : en
Publisher by : Technical Publications
Format Available : PDF, ePub, Mobi
Total Read : 12
Total Download : 907
File Size : 49,9 Mb
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Description :


Mechatronics And Microprocessor

Author by : V.S.Bagad
Languange : en
Publisher by : Technical Publications
Format Available : PDF, ePub, Mobi
Total Read : 33
Total Download : 955
File Size : 47,5 Mb
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Description :


Official Gazette Of The United States Patent Office

Author by : USA Patent Office
Languange : en
Publisher by :
Format Available : PDF, ePub, Mobi
Total Read : 17
Total Download : 807
File Size : 51,7 Mb
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Description :


Mmse Based Algorithm For Joint Signal Detection Channel And Noise Variance Estimation For Ofdm Systems

Author by : Vincent Savaux
Languange : en
Publisher by : John Wiley & Sons
Format Available : PDF, ePub, Mobi
Total Read : 62
Total Download : 860
File Size : 44,6 Mb
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Description : This book presents an algorithm for the detection of an orthogonal frequency division multiplexing (OFDM) signal in a cognitive radio context by means of a joint and iterative channel and noise estimation technique. Based on the minimum mean square criterion, it performs an accurate detection of a user in a frequency band, by achieving a quasi-optimal channel and noise variance estimation if the signal is present, and by estimating the noise level in the band if the signal is absent. Organized into three chapters, the first chapter provides the background against which the system model is presented, as well as some basics concerning the channel statistics and the transmission of an OFDM signal over a multipath channel. In Chapter 2, the proposed iterative algorithm for the noise variance and the channel estimation is detailed, and in Chapter 3, an application of the algorithm for the free-band detection is proposed. In both Chapters 2 and 3, the principle of the algorithm is presented in a simple way, and more elaborate developments are also provided. The different assumptions and assertions in the developments and the performance of the proposed method are validated through simulations, and compared to methods of the scientific literature


Signals Systems

Author by : NAGOOR
Languange : en
Publisher by : Tata McGraw-Hill Education
Format Available : PDF, ePub, Mobi
Total Read : 69
Total Download : 415
File Size : 54,7 Mb
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Description : Overview: Designed for the undergraduate course on Signals and Systems, this text provides a comprehensive overview of fundamental concepts and their practical implications. Supported by crisp and concise theory, plethora of numerical problems and MATLAB exercises, this book helps reader learn this important subject in the easiest manner. Features:  Separate treatment of continuous time and discrete time signals  All theorems and properties are well defined with the proofs  Solved examples are explained using step-by-step method


Ciena Corporation Patent Landscape Analysis January 1 1994 To December 31 2013

Author by : Reiner E. Jargosch
Languange : en
Publisher by : IPGenix LLC
Format Available : PDF, ePub, Mobi
Total Read : 74
Total Download : 928
File Size : 42,8 Mb
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Description : The following analysis illustrates the underlying trends and relationships of U.S. issued patents of the subject company. The analysis employs two frequently used patent classification methods: US Patent Classification (UPC) and International Patent Classification (IPC). Aside from assisting patent examiners in determining the field of search for newly submitted patent applications, the two classification methods play a pivotal role in the characterization and analysis of technologies contained in collections of patent data. The analysis also includes the company’s most prolific inventors, top cited patents as well as foreign filings by technology area.


Modern Radar Systems

Author by : Hamish Meikle
Languange : en
Publisher by : Artech House
Format Available : PDF, ePub, Mobi
Total Read : 30
Total Download : 293
File Size : 41,6 Mb
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Description : This one-of-a-kind book features 536 illustrations (drawn in Maple V) that offer a greater understanding of various waveforms, and other two- and three-dimensional functions, to help you more accurately analyze radar system performance. The effects of pulse shaping on transmitter stability and spectra are discussed ? a topic which is becoming more and more important in the age of electromagnetic compatibility. The book addresses the importance of low attenuation and reflection between the main radio frequency blocks, including the use of oversized waveguides for long runs.


Tellabs Inc Patent Landscape Analysis January 1 1994 To December 31 2013

Author by : Reiner E. Jargosch
Languange : en
Publisher by : IPGenix LLC
Format Available : PDF, ePub, Mobi
Total Read : 80
Total Download : 236
File Size : 42,9 Mb
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Description : The following analysis illustrates the underlying trends and relationships of U.S. issued patents of the subject company. The analysis employs two frequently used patent classification methods: US Patent Classification (UPC) and International Patent Classification (IPC). Aside from assisting patent examiners in determining the field of search for newly submitted patent applications, the two classification methods play a pivotal role in the characterization and analysis of technologies contained in collections of patent data. The analysis also includes the company’s most prolific inventors, top cited patents as well as foreign filings by technology area.