3,831 research outputs found

    The Chameleon Architecture for Streaming DSP Applications

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    We focus on architectures for streaming DSP applications such as wireless baseband processing and image processing. We aim at a single generic architecture that is capable of dealing with different DSP applications. This architecture has to be energy efficient and fault tolerant. We introduce a heterogeneous tiled architecture and present the details of a domain-specific reconfigurable tile processor called Montium. This reconfigurable processor has a small footprint (1.8 mm2^2 in a 130 nm process), is power efficient and exploits the locality of reference principle. Reconfiguring the device is very fast, for example, loading the coefficients for a 200 tap FIR filter is done within 80 clock cycles. The tiles on the tiled architecture are connected to a Network-on-Chip (NoC) via a network interface (NI). Two NoCs have been developed: a packet-switched and a circuit-switched version. Both provide two types of services: guaranteed throughput (GT) and best effort (BE). For both NoCs estimates of power consumption are presented. The NI synchronizes data transfers, configures and starts/stops the tile processor. For dynamically mapping applications onto the tiled architecture, we introduce a run-time mapping tool

    Wireless communication, identification and sensing technologies enabling integrated logistics: a study in the harbor environment

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    In the last decade, integrated logistics has become an important challenge in the development of wireless communication, identification and sensing technology, due to the growing complexity of logistics processes and the increasing demand for adapting systems to new requirements. The advancement of wireless technology provides a wide range of options for the maritime container terminals. Electronic devices employed in container terminals reduce the manual effort, facilitating timely information flow and enhancing control and quality of service and decision made. In this paper, we examine the technology that can be used to support integration in harbor's logistics. In the literature, most systems have been developed to address specific needs of particular harbors, but a systematic study is missing. The purpose is to provide an overview to the reader about which technology of integrated logistics can be implemented and what remains to be addressed in the future

    Future benefits and applications of intelligent on-board processing to VSAT services

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    The trends and roles of VSAT services in the year 2010 time frame are examined based on an overall network and service model for that period. An estimate of the VSAT traffic is then made and the service and general network requirements are identified. In order to accommodate these traffic needs, four satellite VSAT architectures based on the use of fixed or scanning multibeam antennas in conjunction with IF switching or onboard regeneration and baseband processing are suggested. The performance of each of these architectures is assessed and the key enabling technologies are identified

    Where are the world's top 100 I.T. firms - and why?

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    Various publications tabulate and publish lists of the ?top 100? information-technology (I.T.) firms. The July 1997 issue of PD Magazine, for example, has a list showing that most of the world?s key firms in computing, software, semiconductors, and related fields are American. They are also heavily concentrated in such western states as Texas, Utah, Washington, and of course California. The distribution of firms and entrepreneurs is markedly different from 15 years ago. For example, the December 1997 Upside Magazine list of the top 100 people in I.T. contains only three individuals from supposedly ?high-tech? Massachusetts ? or no more than the number predicted by the state?s share of the US population. The paper will extend my work tracking the westward rebirth of American computing since the early 1980s. It will complement the employment shifts I have already documented with new mappings of firms and entrepreneurs. The hypotheses is that the PC revolution spurs a regional realignment of US computing away from the more hierarchical and bureaucratized firms of the Northeast to flatter, more agile, and more entrepreneurial firms in the younger economic cultures of the West. A look at the specific enterprises and entrepreneurs will illuminate the process by which the US regained its leadership in I.T. within the world economy.

    Classification of networks-on-chip in the context of analysis of promising self-organizing routing algorithms

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    This paper contains a detailed analysis of the current state of the network-on-chip (NoC) research field, based on which the authors propose the new NoC classification that is more complete in comparison with previous ones. The state of the domain associated with wireless NoC is investigated, as the transition to these NoCs reduces latency. There is an assumption that routing algorithms from classical network theory may demonstrate high performance. So, in this article, the possibility of the usage of self-organizing algorithms in a wireless NoC is also provided. This approach has a lot of advantages described in the paper. The results of the research can be useful for developers and NoC manufacturers as specific recommendations, algorithms, programs, and models for the organization of the production and technological process.Comment: 10 p., 5 fig. Oral presentation on APSSE 2021 conferenc

    Application of advanced on-board processing concepts to future satellite communications systems: Bibliography

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    Abstracts are presented of a literature survey of reports concerning the application of signal processing concepts. Approximately 300 references are included
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