GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS
&
SECURITY

SUBMITTEDBY :
SARATH CHOWDARY P.
SURYA TEJA P.
THIRDYEAR,
ELECTRONICS & COMMUNICATION
ENGINEERING ,
SIRC.R.REDDYCOLLEGEOFENGINEERING,
ELURU, ANDHRA PRADESH.


Abstract
In the past decade mobile communications has become one of the driving forces of the digital revolution. Everyday, millions of people are making phone calls by pressing a few buttons. Little is known about how one personâ„¢s voice r ....etc

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A Distributed Database Architecture for Global Roaming in Next-Generation Mobile Networks

Abstract: The next-generation mobile network will support terminal mobility, personal mobility, and service provider portability, making global roaming seamless. A location-independent personal telecommunication number (PTN) scheme is conducive to implementing such a global mobile system. However, the non-geographic PTNs coupled with the anticipated large number of mobile users in future mobile networks may introduce very large centralized databases. T ....etc

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A Distributed Database Architecture for Global Roaming in Next-Generation Mobile Networks
Abstract: The next-generation mobile network will support terminal mobility, personal mobility, and service provider portability, making global roaming seamless. A location-independent personal telecommunication number (PTN) scheme is conducive to implementing such a global mobile system. However, the non-geographic PTNs coupled with the anticipated large number of mobile users in future mobile networks may introduce very large centralized databases. This ....etc

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Global Issues: Ozone Depletion, Global Warming and Acid Rain

Introduction

Air pollution is exerting increasing impact on the environment. Humans have been altering the chemistry of the atmosphere on a global scale. These changes may:
Modify the global climate
Threaten the health of human beings
Create many environmental problems such as
Acid rain
Depletion of ozone layer
Global warming
Seriously upset the global ecosystem

What is ozone depletion?

Ozone is a highly reactive gas comprising ....etc

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 Introduction:
 Background and Requirements:
At the beginning of the 1980s it was realized that the European countries were using many different, incompatible mobile phone systems. At the same time, the needs for telecommunication services were remarkably increased. Due to this, CEPT (Conférence European Posts Telecommunications) founded a group to specify a common mobile system for Western Europe. This group was named “Groupe Spéciale Mobile” and the system name GSM arose. This ab ....etc

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Global system for mobile communication (GSM) is a globally accepted standard for digital cellular communication. GSM is the name of a standardization group established in 1982 to create a common European mobile telephone standard that would formulate specifications for a pan-European mobile cellular radio system operating at 900 MHz. It is estimated that many countries outside of Europe will join the GSM partnership.Throughout the evolution of cellular telecommunications, various systems have been developed without the benefit of standardized s ....etc

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GLOBAL SYSTEM
FOR
MOBILE COMMUNICATION

Definition:
Global system for mobile communication (GSM) is a globally accepted
standard for digital cellular communication. GSM is the name of a
standardization group established in 1982 to create a common European
mobile telephone standard that would formulate specifications for a
pan-European mobile cellular radio system operating at 900 MHz. It is
estimated that many countries outside of Europe will join the GSM
partnership.
1. Introduction: The ....etc

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UMTS A GLOBAL MOBILE SYSTEM

TOPICS OF DISCUSSION

WHAT IS UMTS
BRIEF HISTORY OF UMTS
TYPES OF UMTS SYSTEM
SPECIAL FEATURES OF UMTS
TECHNOLOGY BEHIND UMTS
NETWORK STRUCTURE OF UMTS
SPECTRUM OF UMTS
ADVANTAGE OVER GSM AND CDMA
APPLICATION OF UMTS
UPGRADATION OF UMTS
FUTURE ASPECTS OF UMTS



WHAT IS UMTS

UMTS is Universal Mobile Telecommunication System.
It is one of the THIRD GENERATION(3G) mobile phone technology
• It is standardized by 3GPP, and is the European answer to the ....etc

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Global system for mobile communication (GSM) is a globally accepted standard for digital cellular communication. GSM is the name of a standardization group established in 1982 to create a common European mobile telephone standard that would formulate specifications for a pan-European mobile cellular radio system operating at 900 MHz. It is estimated that many countries outside of Europe will join the GSM partnership.
Throughout the evolution of cellular telecommunications, various systems have been developed without the benefit of standardized ....etc

[:=Read Full Message Here=:]

Global System For Mobile(GSM)

Global system for mobile(GSM) is a second generation cellular system standard that was developed to solve the fragmentation problems of the first cellular systems in Europe's is the world's first cellular system to specify the digital modulation and network level architecture and services. Before GSM, European countries used different cellular standards throughout the continent, and it was not possible for customer to use a single subscriber unit throughout Europe. GSM ....etc

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