3 research outputs found

    Resource and Mobility Management in the Network Layer of 5G Cellular Ultra-Dense Networks

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    © 2017 IEEE. Personal use of this material is permitted. Permissíon from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertisíng or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.[EN] The provision of very high capacity is one of the big challenges of the 5G cellular technology. This challenge will not be met using traditional approaches like increasing spectral efficiency and bandwidth, as witnessed in previous technology generations. Cell densification will play a major role thanks to its ability to increase the spatial reuse of the available resources. However, this solution is accompanied by some additional management challenges. In this article, we analyze and present the most promising solutions identified in the METIS project for the most relevant network layer challenges of cell densification: resource, interference and mobility management.This work was performed in the framework of the FP7 project ICT-317669 METIS, which is partly funded by the European Union. The authors would like to acknowledge the contributions of their colleagues in METIS, although the views expressed are those of the authors and do not necessarily represent the project.Calabuig Soler, D.; Barmpounakis, S.; Giménez Colás, S.; Kousaridas, A.; Lakshmana, TR.; Lorca, J.; Lunden, P.... (2017). Resource and Mobility Management in the Network Layer of 5G Cellular Ultra-Dense Networks. IEEE Communications Magazine. 55(6):162-169. https://doi.org/10.1109/MCOM.2017.1600293S16216955

    Optimized mobile connectivity for bandwidth-hungry, delay-tolerant cloud services toward 5G

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    The availability of different generations of radio access technologies (e.g., from 2G to 4G) and multiple coverage layers (e.g., macro-and small cell-layers) results in a larger selection of connectivity options at the disposal of mobile devices, each with their own connection characteristics (e.g., in terms of quality of service, power consumption and billing). Toward heterogeneous 5G radio access networks it is essential to provide new requirements and solutions for mobile cloud connectivity in order to optimize the trade-off between the available connectivity options and timing of the communication. In this paper, we propose context-aware connectivity management for bandwidth-hungry, delay-tolerant cloud services; and address the potential gains and challenges with the help of system-level performance evaluations

    Smart mobility management for D2D communications in 5G networks

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    Direct device-to-device (D2D) communications is regarded as a promising technology to provide low-power, high-data rate and low-latency services between end-users in the future 5G networks. However, it may not always be feasible to provide low-latency reliable communication between end-users due to the nature of mobility. For instance, the latency could be increased when several controlling nodes have to exchange D2D related information among each other. Moreover, the introduced signaling overhead due to D2D operation need to be minimized. Therefore, in this paper, we propose several mobility management solutions with their technical challenges and expected gains under the assumptions of 5G small cell networks
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