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Modeling of LTE DRX in RRC Idle state
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES). SAAB Training and Simulation, Huskvarna, Sweden.ORCID iD: 0000-0002-3933-285X
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).ORCID iD: 0000-0003-4894-4134
Ericsson AB, Stockholm, Sweden.
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).ORCID iD: 0000-0002-6526-3931
2017 (English)In: 2017 IEEE 22nd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2017Conference paper, Published paper (Refereed)
Abstract [en]

In LTE/LTE-A the Discontinuous Reception (DRX) mechanism is the main approach for power saving in User Equipments (UEs) when in Connected and Idle mode. In this paper, an Idle mode DRX mechanism model is proposed also enabling evaluation of closely related mechanisms such as paging and Tracking Area Update (TAU). Two performance metrics are derived, namely the reachability delay and the power saving factor. © Copyright 2017 IEEE

Place, publisher, year, edition, pages
2017.
National Category
Communication Systems Telecommunications
Identifiers
URN: urn:nbn:se:hh:diva-34995DOI: 10.1109/CAMAD.2017.8031632Scopus ID: 2-s2.0-85032207125ISBN: 978-1-5090-6302-4 (electronic)OAI: oai:DiVA.org:hh-34995DiVA: diva2:1141847
Conference
2017 IEEE 22nd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Lund, Sweden, 19-21 June, 2017
Available from: 2017-09-17 Created: 2017-09-17 Last updated: 2017-12-14Bibliographically approved
In thesis
1. Managing Radio and Energy Resources in LTE-Based Military Training Networks
Open this publication in new window or tab >>Managing Radio and Energy Resources in LTE-Based Military Training Networks
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The number of wireless connected devices are growing exponentially and the importance of this research area is growing as well to meet the known and looming challenges and expectations. The 5:th Generation telecommunications standard is partly embodied by the Machine-to-Machine (M2M) and Internet of Things (IoT) technologies and standards to handle a big part of these devices and connections. An example within the IoT paradigm is military training systems where each system can consist of thousands of battery operated mobile devices and their shifting requirements shall be fullled in an energy-aware manner to increase battery operating times.

Military training radio networks enables realistic combat training. The services and features provided in commercial telecommunications networks are desirable in these often proprietary and task specic networks, increasing capabilities and functionalities. To facilitate the current and future R&D of LTE based networks for adoption in military training networks and services this doctoral thesis intends to provide the starting ground for the energy-aware LTE based wireless communications. The thesis first presents general solutions on how to meet traffic deadlines in wireless networks for large number of nodes, and then continues with solutions for energy-aware LTE-based communications for the User Equipments (UEs).

The work builds on the problem formulation how to provide energy-aware resource handling for LTE-based military training networks from where three research questions are derived. From the research questions we derive different hypotheses and then test these within the investigated area to answer the research questions.

The contributions of this work are within areas of resource handling and power saving for mobile devices. In the first area an admission control using deterministic analysis is proposed fullling traffic requirements for military training mobile nodes. This admission control is enhanced for multiple-channel base stations, and evaluated using mobile nodes with different heterogeneous traffic requirements. In the second part energy-awareness is in focus for LTE/LTE-A based networks. The main power saving method for LTE/LTE-A UEs, Discontinuous Reception (DRX) mechanism, is evaluated and models for DRX in Idle and Connected state are proposed including metrics for wake-up delay and power saving. Additionally a mean queuing delay analysis is proposed for a variant of the Connected state DRX. Using these models and metrics, practical design guidelines for tuning of DRX parameters are proposed, including optimization of DRX parameters for either minimizing delay or maximizing power saving.

Place, publisher, year, edition, pages
Halmstad: Halmstad University Press, 2017. p. xi, 16
Series
Halmstad University Dissertations ; 38
Keyword
4G, 5G, LTE, DRX
National Category
Communication Systems
Identifiers
urn:nbn:se:hh:diva-35807 (URN)978-91-87045-79-0 (ISBN)978-91-87045-78-3 (ISBN)
Public defence
2017-12-01, Halda Hall, Building Visionen, Kristian IV:s väg 3, Halmstad, 10:15 (English)
Opponent
Supervisors
Available from: 2017-12-12 Created: 2017-12-11 Last updated: 2017-12-12Bibliographically approved

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Ramazanali, HawarVinel, AlexeyJonsson, Magnus

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