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Near-optimal practical power control schemes for D2D communications in cellular networks
KTH, School of Information and Communication Technology (ICT).
KTH, School of Electrical Engineering (EES), Automatic Control. Ericsson Research, Sweden .ORCID iD: 0000-0002-2289-3159
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS, Radio Systems Laboratory (RS Lab).
2014 (English)In: EuCNC 2014 - European Conference on Networks and Communications, IEEE Computer Society, 2014, 6882666- p.Conference paper, Published paper (Refereed)
Abstract [en]

Device-to-device (D2D) communication has the potential of increasing the system capacity, energy efficiency and achievable peak rates while reducing the end-to-end latency. To realize these gains, recent works have proposed resource allocation (RA) and power control (PC) approaches that show near optimal performance in terms of spectral or energy efficiency. However, the proposed schemes either consider a single cell environment or assume instantaneous channel state information (CSI) and/or rely on iterative algorithms that require excessive inter-node message exchange and suffer from slow convergence time. For D2D user equipment (UE), we propose a distributed utility optimization based PC scheme that relies on locally available measurement data and is made practical by constraining the number of iterations and the interference caused to the cellular receiver, while legacy UEs employ the standard Long Term Evolution (LTE) PC. We investigate the performance of the proposed PC scheme when combined with two RA schemes that differ in terms of the required channel state information. We find that when properly tuned, this practical PC scheme combined with a RA algorithm that requires limited channel knowledge, not only shows near optimal performance, but it also constraints the impact of D2D communications on the cellular layer.

Place, publisher, year, edition, pages
IEEE Computer Society, 2014. 6882666- p.
Keyword [en]
Algorithms, Energy efficiency, Mobile telecommunication systems, Power control, D2D communications, Deviceto-device (D2D) communication, Instantaneous channel state informations, Iterative algorithm, Near-optimal performance, Number of iterations, Power control schemes, Utility optimizations
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-157939DOI: 10.1109/EuCNC.2014.6882666ISI: 000360270700050Scopus ID: 2-s2.0-84906969170ISBN: 978-1-4799-5280-9 (print)OAI: oai:DiVA.org:kth-157939DiVA: diva2:774098
Conference
2014 European Conference on Networks and Communications, EuCNC 2014, 23 June 2014 through 26 June 2014, Bologna, 23 June 2014 through 26 June 2014
Note

QC 20141222

Available from: 2014-12-22 Created: 2014-12-18 Last updated: 2015-09-29Bibliographically approved

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