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Cdma Anjan V1

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Dr Anjan Krishnamurthy
Dr Anjan Krishnamurthy

The document provides an overview of CDMA (Code Division Multiple Access) technology and standards, including: 1) It describes CDMA as an access method that allows multiple users to occupy the same frequency band using different codes. 2) It summarizes key CDMA standards including IS-95, CDMA2000, and W-CDMA (UMTS), and how they evolved from earlier 2G standards like cdmaOne. 3) It explains some of the technical aspects that enable CDMA including spreading codes, modulation techniques, and how the forward and reverse links are structured.

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Elementary Concepts, Standards And CDMA Anjan.K III Sem M.Tech Dept Of CSE M.S.R.I.T 10/03/09 MC: Elementary Concepts and CDMA
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
International Standardization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
IMT-2000 Radio Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA * Paired spectrum; ** Unpaired spectrum
10/03/09 MC: Elementary Concepts and CDMA
Mobile Standards Organizations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
First Generation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Second Generation — 2G ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Need for CDMA Technology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
CDMA???? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
CDMA Analogy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CDMA Standards - IS-95 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
CDMA Standards - IS-95A ,[object Object],[object Object],[object Object],[object Object],[object Object]
CDMA Standards - IS-95B ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IS-95 CDMA Features-(1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
IS-95 CDMA Features-(2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
IS-95 Vs 2G Phone Systems 10/03/09 MC: Elementary Concepts and CDMA
IS – 95 Vocoders ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Frequency Allocation GSM Vs CDMA 10/03/09 MC: Elementary Concepts and CDMA
10/03/09 MC: Elementary Concepts and CDMA
Mathematical Background – (1) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mathematical Background – (2) What is the tolerable interference over desired signal power?
Mathematical Background – (3) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mathematical Background – (4) ,[object Object],[object Object],[object Object]
Spreading Codes ,[object Object],[object Object],[object Object]
Desirable Randomness Properties ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Desirable Randomness Properties (contd…) ,[object Object],[object Object],[object Object],[object Object],[object Object]
PN Sequences ,[object Object],[object Object],[object Object]
PN Sequences (contd…) ,[object Object],[object Object],[object Object]
Randomness Properties of PN Sequences ,[object Object],[object Object],[object Object],[object Object]
PN Sequences Specified in IS-95 ,[object Object],[object Object],[object Object],[object Object]
PN Sequences Specified in IS-95 (contd…) ,[object Object],[object Object]
Walsh Code ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Spread Spectrum ,[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Advantages of Spread Spectrum ,[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Types Of Spread Spectrum ,[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Direct Sequence Spread Sprectrum ,[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
10/03/09 MC: Elementary Concepts and CDMA
CDMA Forward Link ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
CDMA MUX 10/03/09 MC: Elementary Concepts and CDMA Copyright © Data Communication and Networking By Behrouz A Forozan
CDMA Reverse Channel ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
CDMA DeMUX 10/03/09 MC: Elementary Concepts and CDMA Copyright © Data Communication and Networking By Behrouz A Forozan
3G Vision ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
10/03/09 MC: Elementary Concepts and CDMA
IS 95 to CDMA 2000 3G Evolution 10/03/09 MC: Elementary Concepts and CDMA
CDMA2000 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
10/03/09 MC: Elementary Concepts and CDMA
W-CDMA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Need For WCDMA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
W-CDMA Vs cdma2000 10/03/09 MC: Elementary Concepts and CDMA
TD-SCDMA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
Rake Receiver ,[object Object],[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],10/03/09 MC: Elementary Concepts and CDMA
References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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