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Over the last few years, video over broadband in its various forms has been associated with the hype around convergence. Content digitization, new Broadband technologies and the promise of ubiquitous...
The technology of combining a number of optical wavelengths and then transmitting the same through a single fibre is called wavelength division multiplexing (WDM). Conceptually, the technology is simi...
The GPS (Global Positioning System) is a “constellation†of 24 well-spaced satellites that orbit the Earth and make it possible for people with ground receivers to pinpoint their geographic locati...
Public mobile radio spectrum is a scarce resource while wide spectral ranges are only rarely used. Here, we consider a new strategy called Spectrum Pooling enabling public access to these new spectral...
Symbian OS is designed for the mobile phone environment. It addresses constraints of mobile phones by providing a framework to handle low memory situations, a power management model, and a rich softwa...
The Internet is one of the greatest revolutionary innovations of the twentieth century. It made the 'global village Utopia ' a reality in a rather short span of time. It is changing the way we interac...
Based on internet technology, intranets are becoming an essential part of corporate information systems today. However, internets were not originally designed with businesses in mind. It lacks the te...
EDGE is the next step in the evolution of GSM and IS- 136. The objective of the new technology is to increase data transmission rates and spectrum efficiency an...
Infact most microcomputers used within embedded systems- systems that perform some other function. The range of embedded systems is vast and includes all industrial...
Second-generation (2G) mobile systems were very successful in the previous decade. Their success prompted the development of third generation (3G) mobile systems. While 2G systems such as GSM, IS-95,...
WISENET is a wireless sensor network that monitors the environmental conditions such as light, temperature, and humidity. This network is comprised of nodes called “mot...
Zero-knowledge protocols allow identification, key exchange and other basic cryptographic operations to be implemented without leaking any secret information during the conversation and with smaller c...
The Y2k38 bug was detected a few months ago, but there was no actual testing done to prove that this will affect our current computers. Now this bug can actually start to cause some damage. To test th...
Microsoft Windows Distributed interNet Applications Architecture (Windows DNA) is the application development model for the Windows platform. Windows DNA specifies how to: develop robust, scalable, di...
In its most generic sense a voice portal can be defined as “speech enabled access to Web base informationâ€. In other words, a voice portal provides telephone users with a natural language interfac...
There are several ways to get a fast Internet connection to the middle of nowhere. Until not too long ago, the only answer would have been "cable" — that is, laying lines. Cable TV companies, who wo...
HAPTICS (pronounced HAP-tiks) is the science of applying touch (tactile) sensation and control to interaction with computer applications. By using special devices (joysticks, data gloves, or other dev...
Reliable user authentication is becoming an increasingly important task in the Web-enabled world. The consequences of an insecure authentication system in a corporate or enterprise environment can be...
Wireless Integrated Network Sensors (WINS) now provide a new monitoring and control capability for monitoring the borders of the country. Using this concept we can easily identify a stranger or some...
Circuit breakers are crucial components for power system operation. The currently adapted time-directed maintenance strategy and the emerging new condition-based strategy require a flexible informati...