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Atanasov, A.N. (author), Alink, M.S.O. (author), Van Vliet, F.E. (author)We present a simple and useful figure of merit (FoM) with which to evaluate the performance of simultaneous-multi-beam (SMB) transmit (TX) antenna arrays. The FoM builds upon the power-aperture product and effective isotropic radiated power for single-beam arrays and extends it to SMB arrays. The FoM is the product of radiated power, antenna...conference paper 2022
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Zhang, H. (author), Toh, Y. (author), Soroa, I.M. (author), Morris, D. (author), Roukens, M.P. (author)The use of real-time video-audio and vital patient data significantly improves the effectiveness of remote assessment in emergencies, compared with the current audio-only pre-hospital communications. This was found during recently completed 5G trials, involving ambulance professionals. The aim of the trials was to investigate how 5G-enabled...conference paper 2022
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Wissingh, B. (author), Ravesteijn, D. (author), Schwartz, R.S. (author)This paper presents field trial results of two combined use cases with different QoS requirements: (1) a transport vertical Smart Junction use case; and (2) a healthcare vertical Paramedic Support use case. We focus on slicing prioritization configured in the RAN, at the gNB level, to guarantee QoS requirements for the combined use cases. We...conference paper 2022
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- Arora, A. (author), Dimitrovski, T. (author), Litjens, R. (author), Zhang, H. (author) conference paper 2021
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Raftopoulou, M. (author), Litjens, R. (author)Network slicing has been introduced in 5G networks as an enabling feature for the effective Quality of Service (QoS) provisioning to multiple service classes with distinct performance requirements. When applied in the Radio Access Network (RAN), a class-specific slice is assigned a set of radio resources and can furthermore be optimally...conference paper 2021
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Braam, S. (author), Litjens, R. (author), Smulders, P. (author), Ijntema, W. (author)We present a simulation-based assessment of the performance potential of distributed MIMO (D-MIMO), multi-user MIMO (MU-MIMO) and particularly the combined D/MU-MIMO operation, for which we extend previously published scheduling and beamforming principles. The assessment study reveals that, when optimizing average user throughput performance, D...conference paper 2020
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D'Acunto, L. (author), Kleinrouweler, J.W. (author), Panneman, J. (author), Gabriel, A. (author), Adhikari, A. (author), Satta, R. (author)This paper presents a localized crowd-sourced multimedia production and distribution workflow to enable today's mobile producers of multimedia content to serve their content in real-time to other users, who may be both located nearby or remote to the producers, while at the same time drastically reducing the bandwidth utilization, both in uplink...conference paper 2019
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Dijkstra-Soudarissanane, S.S. (author), Assal, K.E. (author), Gunkel, S.N.B. (author), ter Haar, F.T. (author), Hindriks, H.N. (author), Kleinrouweler, J.W.M. (author), Niamut, O. (author)Recent developments in key technologies like 5G, Augmented and Virtual Reality (AR/VR) and Tactile Internet result in new possibilities for communication. Particularly, these key digital technologies can enable remote communication and collaboration in remote experiences. In this demo, we work towards 6-degrees of freedom (DoF) photo-realistic...conference paper 2019
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Boros, T. (author), Zuraniewski, P. (author), Hindriks, H.N. (author), Adrichem, N.L.M. (author), Thomas, E.D.R. (author), D'Acunto, L. (author)5G promises to offer a single network platform that can be optimized for several vertical industries and applications. It is envisioned that this optimization will be achieved through advanced network orchestration functionalities. Video streaming accounts for the vast majority of mobile traffic, hence optimizing performance and Quality of...conference paper 2019
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Turkovic, B. (author), Kuipers, F. (author), van Adrichem, N.L.M. (author), Langendoen, K. (author)Along with exciting visions for 5G communications and the Tactile Internet, the networking requirement of attaining extremely low end-to-end latency has appeared. While network devices are typically equipped with buffers to counteract packet loss caused by short-lived traffic bursts, the more those buffers get filled, the more delay is added to...conference paper 2018
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Gholibeigi, M. (author), Sarrionandia, N. (author), Karimzadeh, M. (author), Baratchi, M. (author), van den Berg, J.L. (author), Heijenk, G. (author)With the ever-increasing call for connected vehicles and intelligent transportation applications, vehicular networking have been of significant focus recently. Demands for highly reliable communication challenge the current underlying technology and transformations in vehicular communication are discussed. The uMTC service of the next generation...conference paper 2018
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Jorguseski, L. (author), Pais, A.V. (author), Gunnarsson, F. (author), Centonza, A. (author), Willcock, C. (author)Self-Organizing Networks (SON) is a common term for mobile network automation, critical to the cost-efficient deployment, operation and maintenance of mobile networks. This article provides an overview of SON standardization in 3GPP, including both existing and planned functionalities. It also provides an operator perspective on the relevance...article 2014
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Chen, Y. (author), Blume, O. (author), Gati, A. (author), Capone, A. (author), Wu, C.E. (author), Barth, U. (author), Marzetta, T. (author), Zhang, H. (author), Xu, S. (author)As the mobile traffic is expected to continue its exponential growth in the near future, energy efficiency has gradually become a must criterion for wireless network design. Three fundamental questions need to be answered before the detailed design could be carried out, namely what energy efficiency network is, where the energy efficiency...conference paper 2013
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Dekker, H.J. (author), van den Ende, A.H. (author), Gelevert, H.F.B.F. (author), Trommelen, P.H. (author)Having available adequate and sufficient spectrum resources is a crucial factor to enable the fast growth of broadband mobile communications. Efficient use of scarce radio spectrum becomes more and more important. Especially in the lower frequency bands, with favorable conditions for mobile communications, spectrum will have to be shared between...bookPart 2013
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Posthumus, B. (author), van den Homberg, M.J.C. (author), de Boer, J. (author), Klarsfeld, L. (author), Chevrollier, N. (author), Jaspert, T. (author)Over the past twenty years, the number of mobile phone subscriptions has risen from 12 million to more than six billion. 75% of the world has access to a mobile phone and the developing world is now more mobile than the developed world. However, the growth of non-voice services on these mobiles for the Base of the Pyramid users is still at the...conference paper 2013
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Streefkerk, J.W. (author), McCrickard, D.S. (author), van Esch-Bussemakers, M.P. (author), Neerincx, M.A. (author)In mobile computing, a fundamental problem is maintaining awareness of the environment and of information presented as messages on a mobile device. In mobile police patrol, officers need to pay attention to their direct environment and stay informed of incidents elsewhere. To prevent unwanted interruption, a context-aware notification system...article 2012
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Xu, T. (author), Tang, Z. (author), Lu, H. (author), van Leuken, R. (author)Mobile OFDM refers to OFDM systems with fast moving transceivers, contrastive to traditional OFDM systems whose transceivers are stationary or have a low velocity. In this paper, we use Basis Expansion Models (BEM) to model the time-variation of channels, based on which two least-squares (LS) channel estimators are presented. The first channel...conference paper 2012
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Streefkerk, J.W. (author)The main argument in this thesis is that mobile technology has to adapt information presentation to the mobile use context and Human Factors (attention, workload and individual characteristics). This will provide better support for work in these domains than non-adaptive systems. We expect such context-aware mobile support (CAMS) systems to...doctoral thesis 2011
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Koninklijke KPN ; Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek (author), Hoepman, J.H. (author), Joosten, H.J.M. (author), Knobbe, J.W. (author)A method and a system for securing communication between at least a first and a second hardware components of a mobile device is described. The method includes establishing a first shared secret between the first and the second hardware components during an initialization of the mobile device and, following the initialization of the mobile...patent 2011
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Koninklijke KPN ; Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek (author), Knobbe, J.W. (author), Hoepman, J.H. (author), Joosten, H.J.M. (author)A method and a system for securing communication between at least a first and a second hardware components of a mobile device is described. The method includes establishing a first shared secret between the first and the second hardware components during an initialization of the mobile device and, following the initialization of the mobile...patent 2011