CHAPTER 1 INTRODUCTION More than 93 percent of car thefts occur in metropolitan areas where motor vehicle theft remains a pervasive problem. Western states‚ in particular‚ experience high rates of motor vehicle theft‚ while nationally a car or truck was stolen every 28.8 seconds. The FBI Uniform Crime Reports released an estimate 1.1 million motor vehicle thefts‚ with an estimated value of $7.4 billion. A new international Interpol Statistics revealed
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Communications Chapter 4: Wireless Telecommunication Systems slides by Jochen Schiller with modifications by Emmanuel Agu Market q GSM q q Overview q Services q Sub-systems q Components Prof. Dr.-Ing. Jochen Schiller‚ http://www.jochenschiller.de/ MC SS05 4.1 Mobile phone subscribers worldwide 1600 approx. 1.7 bn 1400 1200 Subscribers [million] GSM total TDMA total CDMA total 800 PDC total Analogue total 600 W-CDMA Total wireless Prediction (1998) 400 1000 200 0 1996
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Appliance Control System Using GSM R. Chutia‚ D. Sonowal and S. Sharma Department of Electronics and Communication Engineering Tezpur Central University Tezpur‚ Assam‚ India GSM handset with GSM Modem and a driver circuit. The GSM modem provides the communication media between the homeowner and the system by means of SMS messages. The SMS message consists of commands to be executed. The format of the message is predefined. The SMS message is sent to the GSM modem via the GSM public networks as a text
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GSM Architecture of the GSM System GSM-elements & interfaces System Architecture: Radio Subsystem Mobile Station (MS) Mobile Station (MS) Block Diagram of BTS with TRX Block Diagram of BTS Contd. • Transmitter/Receiver Module – The TRX consists of a low-frequency part for digital signal processing and a high-frequency part for GMSK modulation and demodulation. • The operations and maintenance (O&M) module – connected directly to the BSC by means of a specifically assigned
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HUMAN LIFE SAVING AND VEHICLE THEFT CONTROL SYSTEM USING GPS AND GSM Synopsis: Accidents – nowadays become a common word‚ especially on high ways. In many cases the casualty is very high not because of the accident but because of the delay in treatment. This happens because the appropriate authorities are not informed that promptly. The project aims at providing a wireless information system that helps in transfer of information to the near by station immediately
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Let talk about the T-mobile‚ the wireless telephone industry is growing at a rapid pace. According to Solomon – Wolff associates‚ the strongest user group is the 31-45 age group and the growth trend is expected to peak over the next ten years. T-mobile is one of the fastest- growing nationwide providers of wireless data‚ messaging and voice services. Its annual revenue in 2004 was $11.7 billion‚ a 40 percent increase from $8.4 billion in 2003. In the new trend‚ T-mobile will provide caller tunes
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sending messages in form of SMS through mobile; it is a wireless transmission system which has very less errors and maintenance. The hardware board contains microcontroller AT89c52 at the heart of the system. The microcontroller is interfaced with GSM Modem via MAX232 level convertor. It is used to convert RS232 voltage levels to TTL voltage levels and vice versa. The hardware also has a 64K EEPROM chip AT24C64. This EEPROM is used to store the timings and messages to be displayed. Hardware also
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Limited CDMA Code Division Multiple Access COAI Cellular Operators Association of India DOT Department of Telecommunication DTS Department of Telecom Service EBITDA Earning Before Interest Tax Depreciation and Amortization FY Financial Year GSM Global System Mobile IDC Industrial design Centre ILD International Long Distance ILP Industrial liaison Program IPTV Internet Protocol Television ISP Internet Service Provider MPLS-VPN Multi-Protocal Label Switching-Virtual Private Network MTNL
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us out of her busy schedule. We are thankful to our parents‚ families and teachers whose motivation‚ guidance and prayers have made us to reach this point of completion of our project. Executive Summary We conducted an economic survey on Ufone GSM‚ which is a major part of the Pakistan telecommunication sector. This report contains information that we have gathered. The report compromises of a brief overview of the company‚ the problems faced in the beginning and than its emergence as the biggest
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seismic signals from global stations and consolidates the information. If there is a danger of a tsunami‚ an alarm is sent out to subscribers via an SMS. The Global System for Mobile Communications (GSM) is the most popular standard used here for making calls such as text messaging. The ubiquity of the GSM standard makes international roaming very common between mobile phone operators‚ enabling subscribers to use their phones in many parts of the world. The paper discusses about
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