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Träfflista för sökning "WFRF:(Weitkemper Petra) "

Sökning: WFRF:(Weitkemper Petra)

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1.
  • Bonneville, Hervé, et al. (författare)
  • EU FP7 INFSO-ICT-247223 ARTIST4G, D3.2 Advanced Relay Technical Proposals
  • 2011
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • The following document contains technical proposals for advanced relays that have been developed so far by the partners in Task 3.1 of WP3. The proposals are grouped according to the respective activity in Task 3.1 and contain a description of the innovation and all deviations from the baseline assumptions listed for state-of-the-art relay-enhanced systems in the first part of this document. For each innovation, analytical derivations and/or simulation results are provided, as well as an outlook on future work within WP3.
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4.
  • Papadogiannis, Agisilaos, 1982, et al. (författare)
  • Advanced Relaying Concepts for Future Wireless Networks
  • 2012
  • Ingår i: Future Network and Mobile Summit (FUNEMS 2012), Berlin, Germany, July 2012. - 9781905824298
  • Konferensbidrag (refereegranskat)abstract
    • Relaying is undoubtedly a key technology for future wireless networks as it can be applied to provide coverage extension and capacity increase in a cost-effective manner. This paper presents an outline of the major advanced relaying concepts that will be part of future systems from the viewpoint of the ARTIST4G European project. These concepts can be divided into three categories, those pertinent to type-1 relays, type-2 relays and moving relays. The characteristics of each of these concepts are presented and the challenges related to their implementation are discussed. Furthermore the paper proposes a set of solutions to address the discussed challenges. For type-1 relays, the paper presents solutions for the allocation of resources to the backhaul and the access links, the inter-relay interference mitigation, and the multi-hop transmission mode. For type-2 relays, our focus is on the design of distributed hybrid automatic repeat request (HARQ) protocols. More specifically we propose that the conventional HARQ schemes are adapted to exploit the potentially better channel conditions provided by the relays. Moreover distributed turbo coding solutions are introduced for increasing transmission reliability with the aid of relays. Finally, moving relays are presented as an efficient solution to the ever-growing demand for wireless broadband by users within public transportation vehicles. We show that moving relays can very effectively overcome vehicle penetration losses and boost the achievable capacities of the moving users. Overall, we conclude that the presented advanced relaying concepts are very promising and can significantly enhance the user experience in future wireless networks.
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5.
  • Papadogiannis, Agisilaos, 1982, et al. (författare)
  • Pass it on: Advanced Relaying Concepts and Challenges for Networks Beyond 4G
  • 2014
  • Ingår i: IEEE Vehicular Technology Magazine. - 1556-6080 .- 1556-6072. ; 9:2, s. 29-37
  • Tidskriftsartikel (refereegranskat)abstract
    • Relay nodes (RNs) will be a key feature of future wireless networks. RNs can extend coverage, increase network capacity, and provide more uniform quality-of-service (QoS) across the cell area in a cost-effective manner. Therefore, not surprisingly, relaying techniques have attracted a significant amount of attention from the wireless industry and standards. The Third-Generation Partnership Project (3GPP) release 10 has considered RNs that act as base stations (BSs), known as type-1 RNs, aiming only for coverage extension. However, RNs can be employed in different ways, and several challenges have to be addressed to attain the theoretical gains. This article presents an overview of the relaying concepts related to the 3GPP long-term evolution (LTE) road map, i.e., concepts related to type-1, type-2, and moving RNs. The implementation challenges are outlined, and a number of promising solutions for each RN type are discussed. More specifically, for type-1 RNs, this article focuses on the allocation of resources to the backhaul and access links. For type-2 RNs, the focus is on designing distributed hybrid automatic repeat request (HARQ) protocols that involve RNs. Moving RNs are presented as an efficient solution to the ever-growing demand for wireless broadband by vehicleborne users. Overall, the presented relaying concepts and solutions can significantly improve the user experience and can play an important role in the future.
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6.
  • Popovski, Petar, et al. (författare)
  • EU FP7 INFSO-ICT-317669 METIS, D2.1, Requirement analysis and design approaches for 5G air interface
  • 2013
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • This document describes the problem space for the METIS research conducted in the radio link context. Firstly, a requirement analysis for the air interface design is conducted based on the test case descriptions presented in METIS deliverable D1.1. It follows an introduction of the research topics being pursued in the radio link research together with an illustration of how these topics are addressing the derived requirements. Moreover, it is shown which of thoserequirements address the needs of the METIS horizontal topics. To facilitate the achievement of these three objectives, a framework of General Requirements is introduced, which will be used throughout the project to assess and evaluate developed radio link solutions and to allow for measuring against the overall system performance goals.
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7.
  • Popovski, Petar, et al. (författare)
  • EU FP7 INFSO-ICT-317669 METIS, D2.2 Novel radio link concepts and state of the art analysis
  • 2013
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • This document provides a detailed overview of the Radio Link concepts being developed in METIS as well as a detailed analysis of the related state of the art. For each of the research topics identified for the radio link research covering flexible air interface, new waveforms,modulation and coding techniques as well as multiple access, medium access control and enablers for radio resource management, a detailed description of the aspects to be investigated will be given, going beyond the limits imposed by the systems operated today and their planned evolutions. The state of the art analysis, which is conducted for each of the research topics separately, covers current standards, their future evolutions as well as latest academic research. Elaborating on how the approaches followed in the radio link research may advance this state of the art carves a promising track towards innovative solutions addressing the challenges of future wireless communication.
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8.
  • Popovski, Petar, et al. (författare)
  • EU FP7 INFSO-ICT-317669 METIS, D2.3 Components of a new air interface - building blocks and performance
  • 2014
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • This document provides intermediate results of the concepts being developed in the radio link research of METIS. For each of the technology components (TeC) within the technology component clusters (TeCC), covering flexible air interface, new waveforms, modulation and coding techniques as well as multiple access, medium access control and enablers for radio resource management, key findings and conclusions collected so far are summarized in section 2. Continuative descriptions and research outcomes are given in the annex and referred publications.The results presented here will be extended in the further progress of the project, and they will be used in the next phase of the project to develop and refine the overall METIS system concept instantiated by the horizontal topics. The suitability of the single technology components for the overall system design being able to meet the wide range of requirements for 5G will then be evaluated.
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9.
  • Popovski, Petar, et al. (författare)
  • EU FP7 INFSO-ICT-317669 METIS, D2.4 Proposed solutions for new radio access
  • 2015
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • This deliverable represents the final report on the METIS radio link research. It provides a comprehensive and self-contained summary of all investigated technology components (TeCs), including evaluation results and conclusions on their potential for 5G. The METIS radio link research covers three main areas, which are considered key aspects for developing a self-contained air interface design for 5G: 1) Flexible air interface, 2) Waveforms, coding & modulation and transceiver design and 3) Multiple access, Medium Access Control (MAC) and Radio Resource Management (RRM). TeCs with similar research context and objectives have been grouped into clusters, whereof five have been selected as the most promising for 5G systems: From research area 1, TeC clusters providing key enablers for an air interface for ultra-dense networks (UDN) and for moving networks; from research area 2, multi-carrier transmission schemes with filtering; and from research area 3, novel access schemes for massive machine access as well as for non-orthogonal access.
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10.
  • Schellmann, Malte, et al. (författare)
  • 5G radio-access technologies
  • 2016
  • Ingår i: 5G Mobile and Wireless Communications Technology. - 9781107130098
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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