Quadrature Phase Shift Keying (QPSK/DQPSK) PDF Download

Author: Lab-Volt (Quebec) Ltd
Publisher:
ISBN: 9782896401376
Category :
Languages : en
Pages : 15

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Author:
Publisher:
ISBN: 9782897478100
Category :
Languages : en
Pages :

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Author:
Publisher:
ISBN: 9782897478094
Category :
Languages : en
Pages :

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Author: Debabrata Saha
Publisher:
ISBN:
Category : Digital communications
Languages : en
Pages : 123

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Like MSK, Q('2)PSK also has self clocking and self synchronizing ability. A synchronization scheme is presented for coherent demodulation of Q('2)PSK signal.

Author: Osama Mohamed El-Ghandour
Publisher:
ISBN:
Category :
Languages : en
Pages : 188

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Author: Matthew Bousquet
Publisher:
ISBN:
Category : Computer engineering
Languages : en
Pages : 98

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Author: Abdulkadir Özcan
Publisher: Springer Science & Business Media
ISBN: 3642219365
Category : Computers
Languages : en
Pages : 443

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This book constitutes the refereed proceedings of the Third International Conference on Wireless, Mobile Networks, WiMo 2011, and of The Third International Conference on Computer Networks and Communications, CoNeCo 2011, held in Ankara, Turkey, in June 2011. The 40 revised full papers presented were carefully reviewed and selected from 202 submissions.

Author: Gary A. White
Publisher:
ISBN:
Category :
Languages : en
Pages : 88

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Quadrature Clock Modulation (QCM) is a binary phase shift keying (BPSK) technique in which alternate bits are transmitted orthogonally. Compared to normal BPSK modulation, QCM improves the performance of a communication system which is limited by intersymbol interference (ISI). Compared to quadrature phase shift keying (QPSK) for the same information rates, QCM is slightly inferior in data detection performance. The average carrier tracking capability of a QCM scheme is equal to that of BPSK for the same closed-loop bandwidth and time bandwidth product (BT) of the channel filter at a specified signal energy to noise ratio (Eb/No). The data detection performance for QCM, BPSK, and QPSK is analyzed by comparing the one-shot probability of error conditioned on a phase error as a function of Eb/No and BT for a specified channel filter. Carrier tracking performance for QCM and BPSK is analyzed by obtaining an average phase error variance for the linear model of a Costas loop.

Author: Ezio Biglieri
Publisher:
ISBN:
Category :
Languages : en
Pages : 198

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Author: Riaz Esmailzadeh
Publisher: John Wiley & Sons
ISBN: 1118995651
Category : Technology & Engineering
Languages : en
Pages : 376

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The focus of this book is broadband telecommunications: both fixed (DSL, fiber) and wireless (1G-4G). It uniquely covers the broadband telecom field from technological, business and policy angles. The reader learns about the necessary technologies to a certain depth in order to be able to evaluate and analyse competing technologies. The student can then apply the results of the technology analysis to business (revenues and costs, market size, etc) to evaluate how successful a technology may be in the market place. Technology and business analyses lead to policy analysis and how government deal with rolling out of broadband networks; content (such as text, audio and video) delivered over them. Furthermore, how government may ensure a competitive and fair environment is maintained for service provision. The book is unique in its approach as it prepares the student to evaluate products from three different viewpoints of technology-business and policy. The book provides a unified vision for broadband communications, offering the required background as well a description of existing broadband systems, finishing with a business scenario. The book breaks new ground by discussing telecommunication technologies in a business and policy context.