Wireless technology In this chapter‚ it discusses the Telecommunications‚ the Internet‚ and Wireless Technology. With the development of technology‚ connecting to Internet become more and more simply. Internet has become a necessary part of our daily social life. Wireless technology refers to the transfer of information between two or more points that are not physically connect‚ such as GPS units‚ wireless computer mice or headsets. As we know‚ wireless benefits our daily life a lot‚ such as mobile
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Space-Time Block Coding for Wireless Communications Space-time coding is a technique that promises greatly improved performance in wireless communication systems by using multiple antennas at the transmitter and receiver. Space-Time Block Coding for Wireless Communications is an introduction to the theory of this technology. The authors develop the subject using a unified framework and cover a variety of topics ranging from information theory to performance analysis and state-of-the-art space-time
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CHAPTER 15 Wide-Area Wireless Networks (WANs) — GSM Evolution 15.1 Introduction Third-generation (3G) wireless systems [2‚3‚9] offer access to services anywhere from a single terminal; the old boundaries between telephony‚ information‚ and entertainment services are disappearing. Mobility is built into many of the services currently considered as fixed‚ especially in such areas as high speed access to the Internet‚ entertainment‚ information‚ and electronic commerce (e-commerce) services. The
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Wireless Fidelity ABSTRACT Wi-Fi‚ which stands for “Wireless Fidelity”‚ is a radio technology that networks computers so they connect to each other and to the internet without wires.It refers to wireless LAN products based on the IEEE 802.11b specification.Users can share documents and projects‚as well as an internet connection among various computer stations. A Wi-Fi network operates just like a wired network‚ without restrictions imposed by wires .Not only does it enable users to move around
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1/3/14 What is Positive Economics | What is Normative Economics Positive economics is economics that does not apply objectives to what an economy should be doing or what it “ought to be” doing. It ill describe equilibrium levels at certain prices and quantities but give no opinion on whether that is an appropriate price of quantity‚ It will examine the quantity theory of money and the interest rate while never stating whether an interest rate is good or bad. The “free market” is a system
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SECURITY OF WIRELESS COMMUNICATIONS Introduction Wireless devices‚ like all technologies that provide external access to corporate networks‚ present security challenges. With wireless standards and practices still rapidly evolving‚ it is important to understand the strengths and limitations of available technologies in order to implement a secure solution. Extending current security policies to encompass wireless devices requires an understanding of the security features of both wireless devices and
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[1] Introduction It would be hard to imagine a world without wireless applications and services. Around the globe‚ mobile services are playing increasingly important roles in many facets of our society. Just a decade ago‚ mobile services consisted primarily of basic voice communication. Today‚ we depend on mobile services not only for communication‚ but also for education‚ entertainment‚ healthcare‚ location and m-commerce. Mobile services have also made significant inroads into developing
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CHAPTER 1 ORGANIZATION PROFILE Snow and Avalanche Study Establishment (SASE) is a laboratory of the Defense Research & Development Organization (DRDO). Located at CHANDIGARH its primary function is research in the field of snow and avalanches to provide avalanche control measures and forecasting support to Armed forces. SASE registered steady growth from 1971 to 1977 and role of SASE was enlarged with the constitution of Advisory Committee. Avalanche forecasting‚ Artificial
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International Journal of Computer and Electrical Engineering‚ Vol.4‚ No.2‚ April 2012 Wireless Transmission of Electrical Power Overview of Recent Research & Development Sagolsem Kripachariya Singh‚ T. S. Hasarmani‚ and R. M. Holmukhe wireless transmission at 1891 in his “experimental station” at Colorado. Nikola Tesla successfully lighted a small incandescent lamp by means of a resonant circuit grounded on one end. A coil outside laboratory with the lower end connected to the ground
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Introduction Wireless network is indicated to a telecommunication network whose interconnections between nodes are implemented without the use of wires‚ such a computer network. Nowadays‚ wireless network has become the important thing in telecommunication. This sort of technology has been used for over a century and remains synonymous with radio. In 19th century‚ Guglielmo Marconi invented a radio and made his made his mark in the world of wireless technology. At that moment‚ Marconi was about
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