Adaptive Active Phased -Array 'Multifunction' Radars

ABSTRACT

                 Adaptive active phased array radars are seen as the vehicle to address the current requirements for true ‘multifunction’ radars systems.  Their ability to adapt to the enviournment and schedule their tasks in real time allows them to operate with performance levels well above those that can be achieved from the conventional radars.  Their ability to make effective use of all the available RF power and to minimize RF losses also makes them a good candidate for future very long range radars.

3- D ICs

ABSTRACT

            The unprecedented   growth of   the computer and the Information technology industry is demanding Very Large Scale Integrated (VLSI) circuits with increasing functionality and performance at minimum cost and power dissipation. VLSI circuits are being aggressively scaled to meet this Demand, which in turn has some serious problems for the semiconductor industry.

           

            Additionally heterogeneous integration of different technologies in one single chip (SoC) is becoming increasingly desirable, for which planar (2-D) ICs may not be suitable.

            3-D ICs are an attractive chip architecture that can alleviate the interconnect related problems such as delay and power dissipation and can also facilitate integration of heterogeneous technologies in one chip (SoC).  The multi-layer chip industry opens up a whole new world of design. With the Introduction of 3-D ICs, the world of chips may never look the same again.

TEN GB ETHERNET

ABSTRACT

              Since its inception at Xerox Corporation in the early 1970s, Ethernet has been the dominant networking protocol. Of all current networking protocols, Ethernet has, by far, the highest number of installed ports and provides the greatest cost performance relative to Token Ring, Fiber Distributed Data Interface (FDDI), and ATM for desktop connectivity. Fast Ethernet, which increased Ethernet speed from 10 to 100 megabits per second (Mbps), provided a simple, cost-effective option for backbone and server connectivity.

              10 Gigabit Ethernet builds on top of the Ethernet protocol, but increases speed tenfold over Fast Ethernet to 10000 Mbps, or 10 gigabit per second (Gbps). This protocol, which was standardized in august 2002, promises to be a dominant player in high-speed local area network backbones and server connectivity. Since10 Gigabit Ethernet significantly leverages on Ethernet, customers will be able to leverage their existing knowledge base to manage and maintain gigabit networks.

              The purpose of this technology brief is to provide a technical overview of 10 Gigabit Ethernet. This paper discusses:

·        The architecture of the Gigabit Ethernet protocol, including physical interfaces, 802.3x flow control, and media connectivity options

·        The 10 Gigabit Ethernet standards effort and the timing for Gigabit Ethernet

·        10 Gigabit Ethernet topologies

·        Migration strategies to 10 Gigabit Ethernet

4G Wireless Technology

ABSTRACT

            As the virtual centre of excellence in mobile and personal communications (Mobile VCE) moves into its second core research programme it has been decided to set up a fourth generation (4G) visions group aimed at harmonising the research work across the work areas and amongst the numerous researchers working on the programme. This paper outlines the initial work of the group and provides a start to what will become an evolving vision of 4G. A short history of previous generations of mobile communications systems and a discussion of the limitations of third generation (3G) systems are followed by a vision of 4G for 2010 based on five elements: fully converged services, ubiquitous mobile access, diverse user devices, autonomous networks and software dependency. This vision is developed in more detail from a technology viewpoint into the key areas of networks and services, software systems and wireless access.

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