Tax policy in small open economies Moene, Karl Ove; Andersen, Torben M; Bovenberg, A Lans ...
The Scandinavian journal of economics,
01/1994, Letnik:
96, Številka:
3
Journal Article
The initial work on an indoor infrastructure for context dependent mobile multimedia communication is presented. The aim is to enable simultaneously research and software development at the ...infrastructures application and service level, system software level and finally at the basis technology level. The research is carried out in a loosely coupled community of researchers mostly specializing into work at one of the levels. The infrastructure consists initially of an IEEE 802.11b WLAN coverage of a part of the IT University indoor site, a system for indoor geographical routing planning, positioning and tracking of mobile terminals, which have a general speech recognition, synthesis interface. The aim is that the infrastructure makes available Java interface to communication and positioning, and a software repository for the support of development of location based services and the multimedia signal processing functions needed for these. The paper describes the initial experiences on the implementation and application of the infrastructure on a part of the university indoor site of approx. 1200 m/sup 2/.
As the standardization of full-dimension MIMO systems in the Third Generation Partnership Project progresses, the research community has started to explore the potential of very large arrays as an ...enabler technology for meeting the requirements of fifth generation systems. Indeed, in its final deliverable, the European 5G project METIS identifies massive MIMO as a key 5G enabler and proposes specific technology components that will allow the cost-efficient deployment of cellular systems taking advantage of hundreds of antennas at cellular base stations. These technology components include handling the inherent pilot-data resource allocation trade-off in a near optimal fashion, a novel random access scheme supporting a large number of users, coded channel state information for sparse channels in frequency- division duplexing systems, managing user grouping and multi-user beamforming, and a decentralized coordinated transceiver design. The aggregate effect of these components enables massive MIMO to contribute to the METIS objectives of delivering very high data rates and managing dense populations.
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