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Record Nr. |
UNINA9911018800703321 |
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Autore |
Chen Hsiao-Hwa |
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Titolo |
The next generation CDMA technologies / / Hsiao-Hwa Chen |
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Pubbl/distr/stampa |
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Chichester, England ; ; Hoboken, NJ, : John Wiley, c2007 |
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ISBN |
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9786611032265 |
9781281032263 |
1281032263 |
9780470022962 |
0470022965 |
9780470022955 |
0470022957 |
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Descrizione fisica |
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1 online resource (477 p.) |
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Disciplina |
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Soggetti |
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Code division multiple access |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Preface. -- About the Author. -- 1 Introduction. -- 2 Basics of CDMA Communications. -- 3 CDMA-Based 2G and 3G Systems. -- 4 Technical Limitations of Traditional CDMA Technology. -- 5 What is Next Generation CDMA Technology? -- 6 Complementary Codes. -- 7 CDMA Systems Based on Complementary Codes. -- 8 Integration of Space-Time Coding with CC-CDMA Technologies. -- 9 M-ary CDMA Technologies. -- 10 Next Generation Optical CDMA Communications. -- A. Relation between Periodic and Aperiodic Correlation Functions. -- B. Proof of Flock-wise Orthoganilty of CC codes. -- C. Proof of n-Chip Orthogonality of CC Codes. -- D. Proof of Equation (8.27). -- E. List of Complete Complementary Codes (PG = 8 ~ 512) -- F. List of Super Complementary Codes (PG = 4 ~64) -- References. -- Index. |
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Sommario/riassunto |
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Future wireless communication systems should be operating mainly, if not completely, on burst data services carrying multimedia traffic.The need to support high-speed burst traffic has already posed a great challenge to all currently available air-link technologies based either on TDMA or CDMA.The first generation CDMA technology has been used in both 2G and 3G mobile cellular standards and it has been suggested |
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that it is not suitable for high-speed burst-type traffic. There are many problems with the first generation CDMA technology, such as its low spreading efficiency, interference-limited capacity and the need for precision power control, etc... 'The Next Generation Technologies' will offer first-hand information on how to make use of various innovative technologies to implement the next generation CDMA technology. As an all-in-one reference for telecommunications engineers, advanced R & D personnels, undergraduate and postgraduate students, this book is must-read material. . Addresses various important issues about the next generation CDMA technologies as the major air-link technology for beyond 3G wireless applications. . Covers topics from next generation CDMA system modelling to analytical methodology, starting with the basics and progressing to advanced research topics. . Contains many new and previously unpublished research results. . Introduces many innovative CDMA technologies such as DS/CC-CDMA, OS/CC-CDMA, space-time complementary coding CDMA, M-ary CDMA, optical complementary coded CDMA, etc. |
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2. |
Record Nr. |
UNICAMPANIAVAN00274327 |
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Autore |
Kaufhold, Marc-André |
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Titolo |
Information Refinement Technologies for Crisis Informatics : User Expectations and Design Principles for Social Media and Mobile Apps / Marc-André Kaufhold |
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Pubbl/distr/stampa |
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Wiesbaden, : Springer Vieweg, 2021 |
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Descrizione fisica |
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xliv, 381 p. : ill. ; 24 cm |
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Soggetti |
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68-XX - Computer science [MSC 2020] |
68Nxx - Theory of software [MSC 2020] |
68Pxx - Theory of data [MSC 2020] |
91D30 - Social networks; opinion dynamics [MSC 2020] |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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