hh.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Performance Evaluation of LTE/LTE-A DRX: A Markovian Approach
SAAB Training and Simulation, Husqvarna, Sweden.ORCID-id: 0000-0002-3933-285X
Högskolan i Halmstad, Akademin för informationsteknologi, Halmstad Embedded and Intelligent Systems Research (EIS), Centrum för forskning om inbyggda system (CERES).ORCID-id: 0000-0003-4894-4134
2015 (engelsk)Inngår i: IEEE Internet of Things Journal, ISSN 2327-4662, Vol. 3, nr 3, s. 386-397, artikkel-id 7303883Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
Piscataway, NJ: IEEE Press, 2015. Vol. 3, nr 3, s. 386-397, artikkel-id 7303883
Emneord [en]
LTE/LTE-A, DRX, power saving, energy efficiency, wake-up delay, machine-to-machine communication, military training, IoT
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-29336DOI: 10.1109/JIOT.2015.2493370ISI: 000377481700013Scopus ID: 2-s2.0-84969821510OAI: oai:DiVA.org:hh-29336DiVA, id: diva2:850102
Tilgjengelig fra: 2015-08-31 Laget: 2015-08-31 Sist oppdatert: 2017-12-11bibliografisk kontrollert
Inngår i avhandling
1. Resource handling for military training networks
Åpne denne publikasjonen i ny fane eller vindu >>Resource handling for military training networks
2015 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Connected devices are increasing steadily and the number of devices will in soon future be so massive that they are impacting the next generation of wireless standards and are already being considered in them. Machine-to-Machine (M2M) communications and Internet of Things (IoT) sub fields of wireless communications have developed lately with their own research fields and forums. 

Military training systems are using radio networks of connected devices to provide realistic combat training with new trends of multimedia streaming and lower traffic latency requirements. To facilitate further development of the networks a research goal is formulated to target the improvement of the network in the desired direction. The research goal is to answer how to provide energy efficient wireless communications within the framework of the military training application, meeting requirements of delay, number of network nodes and power efficiency for mobile devices and is broken down to three separate research questions that are each targeted separately as below.

We have developed an admission control with real-time analysis for a single-frequency base station for mobile nodes with real-time traffic. This scope has been extended to an admission control for a multichannel base station where we also proposed a method on how to maximize the number of mobile nodes, with different traffic requirements including multimedia traffic, in the network. Finally a probabilistic model has been proposed for the Discontinuous Reception (DRX) power saving mechanism for LTE/LTE-A in the 4:th Generation (4G) telecommunications standard. It was also shown how to meet traffic delays while maximizing the power saving factor in the mobile nodes.

sted, utgiver, år, opplag, sider
Halmstad: Halmstad University Press, 2015. s. 15
Serie
Halmstad University Dissertations ; 16
HSV kategori
Identifikatorer
urn:nbn:se:hh:diva-29337 (URN)978-91-87045-34-9 (ISBN)978-91-87045-35-6 (ISBN)
Presentation
2015-09-21, Haldasalen, House Visionen, Kristian IV:s väg 3, Halmstad, 10:15 (engelsk)
Opponent
Veileder
Merknad

Examiner: Professor Walid Taha, Halmstad University

Tilgjengelig fra: 2015-09-15 Laget: 2015-08-31 Sist oppdatert: 2016-06-09bibliografisk kontrollert
2. Managing Radio and Energy Resources in LTE-Based Military Training Networks
Åpne denne publikasjonen i ny fane eller vindu >>Managing Radio and Energy Resources in LTE-Based Military Training Networks
2017 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
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.

sted, utgiver, år, opplag, sider
Halmstad: Halmstad University Press, 2017. s. xi, 16
Serie
Halmstad University Dissertations ; 38
Emneord
4G, 5G, LTE, DRX
HSV kategori
Identifikatorer
urn:nbn:se:hh:diva-35807 (URN)978-91-87045-79-0 (ISBN)978-91-87045-78-3 (ISBN)
Disputas
2017-12-01, Halda Hall, Building Visionen, Kristian IV:s väg 3, Halmstad, 10:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2017-12-12 Laget: 2017-12-11 Sist oppdatert: 2017-12-12bibliografisk kontrollert

Open Access i DiVA

fulltext(2044 kB)180 nedlastinger
Filinformasjon
Fil FULLTEXT02.pdfFilstørrelse 2044 kBChecksum SHA-512
2164322541f7951e425cab1f720eb4347b21f1195d3d0786b87221aff564f9db495ae79be519c6d255cbd65a059a393a25d49d9aa4f924c2987cc0c16de219bc
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Ramazanali, HawarVinel, Alexey

Søk i DiVA

Av forfatter/redaktør
Ramazanali, HawarVinel, Alexey
Av organisasjonen
I samme tidsskrift
IEEE Internet of Things Journal

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 185 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 797 treff
RefereraExporteraLink to record
Permanent link

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