hh.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Managing Radio and Energy Resources in LTE-Based Military Training Networks
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Centrum för forskning om inbyggda system (CERES). Saab Training & Simulation, Husqvarna, Sweden.ORCID-id: 0000-0002-3933-285X
2017 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
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.

Ort, förlag, år, upplaga, sidor
Halmstad: Halmstad University Press, 2017. , s. xi, 16
Serie
Halmstad University Dissertations ; 38
Nyckelord [en]
4G, 5G, LTE, DRX
Nationell ämneskategori
Kommunikationssystem
Identifikatorer
URN: urn:nbn:se:hh:diva-35807ISBN: 978-91-87045-79-0 (tryckt)ISBN: 978-91-87045-78-3 (digital)OAI: oai:DiVA.org:hh-35807DiVA, id: diva2:1164581
Disputation
2017-12-01, Halda Hall, Building Visionen, Kristian IV:s väg 3, Halmstad, 10:15 (Engelska)
Opponent
Handledare
Tillgänglig från: 2017-12-12 Skapad: 2017-12-11 Senast uppdaterad: 2017-12-12Bibliografiskt granskad
Delarbeten
1. Military Training Network with Admission Control using Real-Time Analysis
Öppna denna publikation i ny flik eller fönster >>Military Training Network with Admission Control using Real-Time Analysis
2014 (Engelska)Ingår i: 2014 IEEE 19th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Piscataway, NJ: IEEE Press, 2014, s. 249-254, artikel-id 7033244Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Military training radio networks typically consist of large numbers of mobile nodes and have to provide real-time (RT) communication between these nodes. This paper introduces a method on how to manage radio resources and provide Quality of Service (QoS) guarantees for heterogeneous traffic by using admission control, deterministic queuing, and scheduling methods. The proposed solution is based on the use of a RT feasibility test in the admission control and earliest deadline first (EDF) scheduling and queuing. This deterministic solution handles heterogeneous traffic through a novel combination of RT downlink and two types of RT uplink dynamic scheduling mechanisms. The uplink scheduling consists of a control packet based mechanism for sporadic RT traffic and a periodic short-latency mechanism for periodic RT traffic. The method presented in this paper is investigated by computer simulation, evaluating its performance and determining the maximum number of nodes supported, given a worst-case user scenario. To the best of our knowledge this is the first centralized protocol designed for a military training network providing application-specific RT support for heterogeneous traffic. ©2014 IEEE.

Ort, förlag, år, upplaga, sidor
Piscataway, NJ: IEEE Press, 2014
Nyckelord
Military training radio networks, real-time guarantees, admission control, EDF scheduling, MAC
Nationell ämneskategori
Telekommunikation
Identifikatorer
urn:nbn:se:hh:diva-27413 (URN)10.1109/CAMAD.2014.7033244 (DOI)000380484700051 ()2-s2.0-84949928539 (Scopus ID)978-1-4799-5725-5 (ISBN)
Konferens
2014 IEEE 19th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Athens, Greece, December 1-3, 2014
Tillgänglig från: 2015-01-06 Skapad: 2015-01-06 Senast uppdaterad: 2018-03-22Bibliografiskt granskad
2. Multichannel admission control for military training network
Öppna denna publikation i ny flik eller fönster >>Multichannel admission control for military training network
2015 (Engelska)Ingår i: 2015 IEEE 18th International Symposium on Real-Time Distributed Computing (ISORC) / [ed] Lisa O’Conner, Los Alamitos, CA: IEEE Computer Society, 2015, s. 150-157Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

A military training radio network requires support for a large number of mobile nodes with heterogeneous traffic and real-time requirements. We propose a deterministic protocol and an admission control using real-time analysis for a centralized radio network with a multichannel base station. The admission control implements an algorithm for frequency allocation to mobile nodes, and guarantees timely treatment of real-time traffic. The proposed online heuristic frequency allocation algorithm is compared to other known heuristic algorithms: round robin over channels and fill one channel first. The goal with the heuristic algorithms is to maximize the number of supported mobile nodes. Our results show that when the high utilization part of the traffic have shorter deadlines it is advantageous to differentiate different types of nodes onto separate frequencies, whilst if the deadline is increased it is advantageous to mix different types of nodes on each frequency. © Copyright 2015 IEEE

Ort, förlag, år, upplaga, sidor
Los Alamitos, CA: IEEE Computer Society, 2015
Nyckelord
Military training radio networks, real-time guarantees, admission control, EDF scheduling, MAC, multichannel
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
urn:nbn:se:hh:diva-29203 (URN)10.1109/ISORC.2015.28 (DOI)000380606500019 ()2-s2.0-84962891450 (Scopus ID)978-1-4799-8781-8 (ISBN)
Konferens
2015 IEEE 18th International Symposium on Real-Time Distributed Computing (IEEE ISORC), Auckland, New Zealand, Apr. 13-17, 2015
Tillgänglig från: 2015-08-15 Skapad: 2015-08-15 Senast uppdaterad: 2018-03-22Bibliografiskt granskad
3. Performance Evaluation of LTE/LTE-A DRX: A Markovian Approach
Öppna denna publikation i ny flik eller fönster >>Performance Evaluation of LTE/LTE-A DRX: A Markovian Approach
2015 (Engelska)Ingår i: IEEE Internet of Things Journal, ISSN 2327-4662, Vol. 3, nr 3, s. 386-397, artikel-id 7303883Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

LTE/LTE-A are emerging communication technologies on the way towards 5G telecommunication systems. Ubiquitous adoption of connectivity in between different kinds of sensors, wearable devices and other low-power equipment raises an importance of the energy-efficient wireless communications. In LTE/LTE-A the Discontinuous Reception Mechanism (DRX) aims at power saving of User Equipment (UE) devices. In the paper we present an analysis of DRX, which is novel in two dimensions. First, our analytical approach is different to existing ones due to the use of Markov chain instead of a semi-Markov ones. Secondly, along with the generic traffic models we also analyze the efficiency of DRX for military training application systems, what has not been done before. We suggest few practical recommendations regarding the DRX parameters tuning also. © 2015 IEEE.

Ort, förlag, år, upplaga, sidor
Piscataway, NJ: IEEE Press, 2015
Nyckelord
LTE/LTE-A, DRX, power saving, energy efficiency, wake-up delay, machine-to-machine communication, military training, IoT
Nationell ämneskategori
Kommunikationssystem
Identifikatorer
urn:nbn:se:hh:diva-29336 (URN)10.1109/JIOT.2015.2493370 (DOI)000377481700013 ()2-s2.0-84969821510 (Scopus ID)
Tillgänglig från: 2015-08-31 Skapad: 2015-08-31 Senast uppdaterad: 2017-12-11Bibliografiskt granskad
4. Mean Queuing Delay in LTE DRX
Öppna denna publikation i ny flik eller fönster >>Mean Queuing Delay in LTE DRX
2016 (Engelska)Ingår i: IEEE Wireless Communications Letters, ISSN 2162-2337, E-ISSN 2162-2345, Vol. 5, nr 4, s. 444-447, artikel-id 7496866Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Energy-efficiency is a crucial requirement for future 5G radio devices. Discontinuous reception (DRX) is a mechanism for power saving in LTE/LTE-A standard. In this letter, a method is developed to compute the mean queuing delay induced by the DRX. In contrast to existing semi-Markovian models, an approach, which combines Markov chains and regenerative processes, is proposed. © 2012 IEEE

Ort, förlag, år, upplaga, sidor
Piscataway: Institute of Electrical and Electronics Engineers (IEEE), 2016
Nyckelord
DRX, energy efficiency, IoT, LTE/LTE-A, machine-To-machine communication, military training, power saving, queuing delay, wake-up delay
Nationell ämneskategori
Kommunikationssystem Telekommunikation
Identifikatorer
urn:nbn:se:hh:diva-32113 (URN)10.1109/LWC.2016.2582694 (DOI)000386070400027 ()2-s2.0-84983749143 (Scopus ID)
Tillgänglig från: 2016-10-01 Skapad: 2016-10-01 Senast uppdaterad: 2018-03-23Bibliografiskt granskad
5. Tuning of LTE/LTE-A DRX parameters
Öppna denna publikation i ny flik eller fönster >>Tuning of LTE/LTE-A DRX parameters
2016 (Engelska)Ingår i: 2016 IEEE 21st International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD), Piscataway, NJ: IEEE, 2016, s. 95-100Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

The tradeoff between the power saving and the queuing delay in LTE/LTE-A radio devices with Discontinuous Reception (DRX) Mechanism is discussed. Two optimization problems to tune the DRX parameters are formulated. An optimal performance determined by exhaustive search over a large parameter set and a reduced parameter set, obtained by disabling short DRX cycles, is compared.

Ort, förlag, år, upplaga, sidor
Piscataway, NJ: IEEE, 2016
Serie
International Workshop on Computer Aided Modeling and Design of Communication Links and Networks, ISSN 2378-4873
Nyckelord
LTE/LTE-A, DRX, power saving, energy efficiency, queuing delay, machine-to-machine communication, military training, IoT
Nationell ämneskategori
Kommunikationssystem Telekommunikation Teknisk mekanik Annan elektroteknik och elektronik
Identifikatorer
urn:nbn:se:hh:diva-32117 (URN)10.1109/CAMAD.2016.7790337 (DOI)000391562900017 ()2-s2.0-85018182590 (Scopus ID)978-1-5090-2558-9 (ISBN)
Konferens
2016 IEEE 21st International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD), Ryerson University, Toronto, Ontario, Canada, 23-25 October, 2016
Tillgänglig från: 2016-10-01 Skapad: 2016-10-01 Senast uppdaterad: 2017-12-11Bibliografiskt granskad
6. Modeling of LTE DRX in RRC Idle state
Öppna denna publikation i ny flik eller fönster >>Modeling of LTE DRX in RRC Idle state
2017 (Engelska)Ingår i: 2017 IEEE 22nd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2017Konferensbidrag, Publicerat paper (Refereegranskat)
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

Nationell ämneskategori
Kommunikationssystem Telekommunikation
Identifikatorer
urn:nbn:se:hh:diva-34995 (URN)10.1109/CAMAD.2017.8031632 (DOI)2-s2.0-85032207125 (Scopus ID)978-1-5090-6302-4 (ISBN)
Konferens
2017 IEEE 22nd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Lund, Sweden, 19-21 June, 2017
Tillgänglig från: 2017-09-17 Skapad: 2017-09-17 Senast uppdaterad: 2017-12-14Bibliografiskt granskad

Open Access i DiVA

fulltext(228 kB)112 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 228 kBChecksumma SHA-512
f6bfa89716a72fb497cc303a89eadb133197a49b8356ff7e1ca6cb93c579ff8b8266dec357aba30ad55fbbd11d31d1d2723a4d484067bd80c118729b4afa7c2d
Typ fulltextMimetyp application/pdf

Personposter BETA

Ramazanali, Hawar

Sök vidare i DiVA

Av författaren/redaktören
Ramazanali, Hawar
Av organisationen
Centrum för forskning om inbyggda system (CERES)
Kommunikationssystem

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 112 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

isbn
urn-nbn

Altmetricpoäng

isbn
urn-nbn
Totalt: 5882 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf