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Is the Random Access Channel of LTE and LTE-A Suitable for M2M Communications? A Survey of Alternatives
Universitat Politecnica de Catalunya (UPC).ORCID iD: 0000-0002-5009-723X
Universitat Politecnica de Catalunya (UPC).
Centre Tecnoloogic de Telecomunicacions de Catalunya (CTTC).
2014 (English)In: IEEE Communications Surveys and Tutorials, ISSN 1553-877X, E-ISSN 1553-877X, Vol. 16, no 1, p. 4-16Article in journal (Refereed) Published
Abstract [sv]

The 3GPP has raised the need to revisit the design of next generations of cellular networks in order to make them capable and efficient to provide M2M services. One of the key challenges that has been identified is the need to enhance the operation of the random access channel of LTE and LTE-A. The current mechanism to request access to the system is known to suffer from congestion and overloading in the presence of a huge number of devices. For this reason, different research groups around the globe are working towards the design of more efficient ways of managing the access to these networks in such circumstances. This paper aims to provide a survey of the alternatives that have been proposed over the last years to improve the operation of the random access channel of LTE and LTE-A. A comprehensive discussion of the different alternatives is provided, identifying strengths and weaknesses of each one of them, while drawing future trends to steer the efforts over the same shooting line. In addition, while existing literature has been focused on the performance in terms of delay, the energy efficiency of the access mechanism of LTE will play a key role in the deployment of M2M networks. For this reason, a comprehensive performance evaluation of the energy efficiency of the random access mechanism of LTE is provided in this paper. The aim of this computer-based simulation study is to set a baseline performance upon which new and more energy-efficient mechanisms can be designed in the near future.

Place, publisher, year, edition, pages
IEEE Communications Society, 2014. Vol. 16, no 1, p. 4-16
Keywords [en]
Machine-to-Machine, Random Access Channel, LTE, Energy Efficiency
National Category
Telecommunications
Research subject
Telecommunication
Identifiers
URN: urn:nbn:se:kth:diva-212546DOI: 10.1109/SURV.2013.111313.00244ISI: 000338700900002Scopus ID: 2-s2.0-84897626842OAI: oai:DiVA.org:kth-212546DiVA, id: diva2:1135374
Note

QC 20170823

Available from: 2017-08-23 Created: 2017-08-23 Last updated: 2017-08-23Bibliographically approved
In thesis
1. The Internet of Things in Health, Social Care, and Wellbeing
Open this publication in new window or tab >>The Internet of Things in Health, Social Care, and Wellbeing
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The Internet of Things (IoT) enables opportunities to remotely sense and control objects via communication networks. We study services based on connected devices and the collaboration they generate between the ICT and the Health, Social Care and Wellbeing (HSCWB) industries.

In HSCWB, IoT can support a change from episodic treatments of illness to preventive care and wellbeing solutions. The IoT can be a supporter in cost efficient and high quality health care. The objective is to achieve healthier life years and more efficiency in health and social care. Even if the potential of IoT in HSCWB has been proven in pilot projects and small-scale solutions, the benefits and opportunities for many actors are still unclear. There is a research gap in studying the roles and business opportunities for market-driven technology-based solutions enabled by connected devices.

The research approach separates technological and business domains. On the technology side, the focus is on advances in connectivity for IoT. We present the technical details on a limitation to support IoT devices in cellular networks. We quantify the limitations in the Random Access Channel of the LTE air interface to support IoT devices. Moreover, we propose the adaptation of an access mechanism to enable massive number of simultaneous access attempt in cellular networks.

On the business side, we identify and present how the conditions of the health and social care structure in Sweden affect the establishment of IoT solutions in HSCWB. We then show how these conditions have generated three distinctive development patterns—to innovate within the public sector, to develop solutions in the private care sector, or to target the wellbeing sector to avoid regulatory setbacks.

Based on these patterns, we look closer into study cases to show how business opportunities have been addressed from a business network perspective. When deploying an IoT service, not all critical challenges can be appreciated at a single firm level. Therefore, we rely on a network-level business model framework to analyze emerging IoT services in HSCWB.

The findings suggest that IoT components can improve an existing service by automating internal working processes, or they can enable new value propositions and convenience to end users. In general terms, the collaboration can be used (i) to improve the efficiency of existing services in health and social care without an original intention to change the service offering, or (ii) to create novelty and differentiation, without affecting the internal logics of existing HSCWB services.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. p. 82
Series
TRITA-ICT ; 2017:15
Keywords
Internet-of-Things, Enabling ICT, Social care, Wellbeing, Business models, Business Ecosystems
National Category
Economics and Business Communication Systems Telecommunications
Research subject
Information and Communication Technology
Identifiers
urn:nbn:se:kth:diva-212548 (URN)978-91-7729-487-0 (ISBN)
Public defence
2017-09-27, Ka-Sal C (Sal Sven-Olof Öhrvik), KTH, Kistagången 16, Kista, 13:00 (English)
Opponent
Supervisors
Projects
IoT Ecosystems (VINNOVA)COIN-SWEATMTC2020M2MRISE
Note

QC 20180828

Available from: 2017-08-28 Created: 2017-08-23 Last updated: 2017-08-28Bibliographically approved

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