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Optimal Power Control for D2D Communications under Rician Fading: a Risk Theoretical Approach
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.
2017 (English)In: Globecom 2017 - 2017 IEEE Global Communications Conference, Institute of Electrical and Electronics Engineers (IEEE), 2017Conference paper, Published paper (Refereed)
Abstract [en]

Device-to-device communication is a technology that allows users in close proximity to establish a direct communication link instead of passing through the base station. Because direct communications are likely to have a strong line-of-sight component in the received signal, it is reasonable to model the direct channel with Rician fading. In this paper, we propose a power-control scheme for device-to-device communications on a shared channel. Our allocation minimizes the total power consumption while limiting the link outage probability due to Rician fast fading. By leveraging the concept of conditional-value-at-risk from the field of finance, we obtain a linear programming formulation which can be efficiently solved. Through simulation results we show the benefit of the proposed power allocation compared to a deterministic power control that does not account for the random channel variations. Moreover, we provide insights into how the network topology and the parameter settings affect the performance and feasibility of the power allocation.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2017.
Series
IEEE Global Communications Conference, ISSN 2334-0983
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-217247ISI: 000428054304110ISBN: 978-1-5090-5019-2 (print)OAI: oai:DiVA.org:kth-217247DiVA, id: diva2:1154701
Conference
IEEE Global Communications Conference (GLOBECOM), DEC 04-08, 2017, YourSingapore, Singapore, SINGAPORE
Note

QC 20171106

Available from: 2017-11-03 Created: 2017-11-03 Last updated: 2018-05-08Bibliographically approved

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fulltext(519 kB)38 downloads
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Della Penda, DemiaRisuleo, Riccardo SvenValenzuela, Patricio E.Johansson, Mikael
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