GSM
Evolution of Cellular communication standards
• Analog standards
– Advanced Mobile Phone Service (AMPS)
• US, 800 MHz band
– Total Access Communication System (TACS)
• UK, based on AMPS in 900 MHz band
– Nordic Mobile Telephone System(NMT)
• Scandinavian, Both in 450 MHz and 900 MHz band
• Digital Standards
– Dual mode AMPS (D-AMPS)
• US, Analog signaling and Digital voice coding
– IS-95
• US, CDMA based
– Global Systems for mobile communications (GSM)
• European standar ....etc

[:=Read Full Message Here=:]

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=:]

 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

[:=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

[:=Read Full Message Here=:]

I need full IEEE seminar report on EDGE(Enhanced data rates for GSM or Global Evolution).
please help... ....etc

[:=Read Full Message Here=:]

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

[:=Read Full Message Here=:]

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

[:=Read Full Message Here=:]

Global satellite system communication



INTRODUCTION

To make a satellite phone call today from a location that does not offer terrestrial wireline or wireless coverage requires the use of a large, costly terminal, and entails very high per minute charges. Further, the quality of service is relatively poor because of annoying echoes, large transmission delays, overtalk associated with satellite communications using geostationary satellites. The next generati ....etc

[:=Read Full Message Here=:]

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

[:=Read Full Message Here=:]

Done by:
Ahmed Sudqi Hussein Abdul-Rahman
Ahmad Nasr Raja Mohammad
Supervised by:
Prof. Nihad Dib

Abstract
This report presents the design, implementation, and testing of a dual-band cell-phone jammer. This jammer works at GSM 900 and GSM 1800 simultaneously and thus jams the three well-known carriers in Jordan (Zain, Orange, and Umniah). This project went through two phases:
Phase one: studying the GSM-system to find the best jamming technique, establishing the system d ....etc

[:=Read Full Message Here=:]