NANOSCALE MATERIALS AND DEVICES FOR FUTURE COMMUNICATION NETWORKS

ABSTRACT

New discoveries in materials on the nanometer-length scale are expected to play an important role in addressing ongoing and future challenges in the field of communication. Devices and systems for ultra-high-speed short-and long-range communication links, portable and power-efficient computing devices, high-density memory and logics, ultra-fast interconnects, and autonomous and robust energy scavenging devices for accessing ambient intelligence and needed information will critically depend on the success of next-generation emerging nanomaterials and devices. This seminar presents some exciting recent developments in nanomaterials that have the potential to play a critical role in the development and transformation of future intelligent communication networks.

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Wearable Health Care System on Textile Platform

ABSTRACT

A comfortable health monitoring system is based on a wearable interface implemented by integrating fabric sensors, advanced signal processing techniques and modern telecommunication systems, on a textile platform. Conducting and piezoresistive materials in form of fiber and yarn are integrated in a garment and used as sensors, connectors and electrode elements. Simultaneous recording of vital signs allows extrapolation of more complex parameters and inter-signal elaboration that contribute to produce alert message and synoptic patient table. The system is designed to be minimally invasive, comfortable and wearable, where the knitted fabric sensors and electrodes are distributed and connected to an electronic portable unit, the acquired signals can then be transmitted to a monitoring system.

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APPLE – A Novel Approach for Direct Energy Weapon Control

ABSTRACT

Adaptive photonic based phase locked elements (APPLE) is Raytheon’s DARPA development initiative. The initiative is for development of a directed energy weapon that utilizes a beam combining technique for the achievement of high power. It will integrate the laser enabled weapon applications into unmanned aerial vehicles. The APPLE program is to enable all electronic combining of high-power laser engraver beams within an agile, conformal aperture-a practical approach to synthesizing high-power weapon laser engravers from low-power modules for applications such as laser radar, laser target designation, laser communications, and weapons grade lasers. The idea is to provide electro-optical systems with the same mission flexibility and performance that microwave phased arrays provide for RF applications such as radar and electronic warfare systems.

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Embedded OS for Real-Time Applications

ABSTRACT

The advent of microprocessors has opened up several product opportunities that simply did not exist earlier. These intelligent processors have invaded and embedded themselves into all fields of our lives be it the kitchen (food processors, microwave ovens), the living rooms (televisions, air conditioners) or the work places (fax machines, pagers, laser printer, credit card readers) …etc.

As the complexities in the embedded applications increase, use of an operating system brings in lot of advantages. Most embedded systems also have real-time requirements demanding the use of Real time Operating Systems (RTOS) capable of meeting the embedded system requirements. Real-time Operating System allows realtime applications to be designed and expanded easily. The use of an RTOS simplifies the design process by splitting the application code into separate tasks. An RTOS allows one to make better use of the system recourses by providing with valuable services such as semaphores, mailboxes, queues, time delays, time outs…etc.

This report looks at the basic concepts of embedded systems, operating systems and specifically at Real Time Operating Systems in order to identify the features one has to look for in an RTOS before it is used in a real-time embedded application. Some of the popular RTOS have been discussed in brief, giving their salient features, which make them suitable for different applications.

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Mobile Virtual Reality Services

ABSTRACT


This paper addresses the capability needed in telecommunication system to support mobile access to real-time sights and sounds of a complex environment defined as a virtual reality service (VRS) episode. The constant development of terminal and networking equipment are paving way for the provision of a VRS and the creation of VRS episodes. This paper describes a mobile VRS environment in general and the core architecture and describes the various entities employed to perform a VRS episode setup task. The proposed VRS architecture is in full harmony with the preceding generation of all-IP multimedia networks currently under study in the third generation partnership project.



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Fermi-FET Technology

ABSTRACT


Fermi-FET transistor technology can lead to significant improvement in circuit performance, layout density, power requirements, and manufacturing cost with only a moderate alteration of traditional MOSFET manufacturing technology. This technology makes use of a subtle optimization of traditional buried channel technology to overcome the known shortcomings of buried channel while maintaining large improvements in channel mobility. This technology merges the mobility and low drain current leakage of BCA devices as well as the higher short channel effect immunity of SCI devices. This paper highlights aspects of the technology in a non-mathematical presentation to give a sound general understanding of why the technology is the most promising avenue for advanced very short devices.



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Field Emission Display Screen

ABSTRACT


With a 100-year head start over more modern screen technologies, the CRT is still a formidable technology. It’s based on universally understood principles and employs commonly available materials. The result is cheap-to-make monitors capable of excellent performance, producing stable images in true colour at high display resolutions. But in the world of miniaturization, Cathode ray tubes (CRT) are giant dinosaurs waiting for extinction. A CRT uses a single-point hot electron source that is scanned across the screen to produce an image.

The CRT’s most obvious shortcomings are well known:
• It uses too much electricity.
• Its single electron beam design is prone to misfocus, misconvergence and colour variations across the screen.
• Its clunky high-voltage electric circuits and strong magnetic fields create harmful electromagnetic radiation.
• It’s physically too large.

Attempts to replace bulky Cathode ray tubes resulted in the introduction of the field emission display screens (FED) screens. It will be the biggest threat to CRT’s dominance in the panel display arena. Instead of using a single bulky tube, FEDs use tiny ‘mini tubes’ for each pixel, and the display can be built in the same size as a CRT screen.

The FED screens are lightweight, low power consuming and compact. The FEDs can be used instead of some other technologies are gaining market share in big screen and PC monitors, such as Projection TV, Plasma Displays, Liquid Crystal, and Organic Transistor Displays.



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